Een 1.4?quote:Op dinsdag 19 april 2011 16:47 schreef Scrummie het volgende:
Type: Earthquake
19 hours ago
Magnitude: 1.4
DateTime: Monday April 18 2011, 19:14:20 UTC
Region: Yellowstone National Park, Wyoming
Oh oke, vandaar dat deze wel word gemeld en de rest niet?quote:Op dinsdag 19 april 2011 16:53 schreef Saekerhett het volgende:
[..]
Een 1.4?
Dat gebeurt elke dag wel een keer daar.
Leuke laatste alineaquote:Update 21:10 UTC on Yellowstone Lake seismic activity
Seems we’re getting off to a good (bad?) start with volcanic activity this year!
I have been remiss in keeping abreast of ongoing swarm activity beneath Yellowstone Lake!
I had been watching this area, beginning around 25 December when tiny earthquakes began affecting the area. They seemed to diminish by the first of the year. I should have checked Yellowstone seismograms following the Queen Charlotte Islands Earthquake (M7.5) this past Saturday. The earthquake may have “energized” the then fading (or at least, sluggish!) earthquake swarm.
Remember when I wrote about Long Valley Caldera (CA) being famous for (well, in the volcanological community anyway!) “responding” to large distant earthquakes?
Well, Yellowstone is even more “famous” for such phenomena. The current swarm is scientifically interesting for two other reasons.
First: Since Winter 2007, the volcano has shown a predilection for experiencing significant earthquake swarms at the December-January cusp (but not last year!). Such seasonal regularity in volcanic processes at Yellowstone have been noted before, namely during the late summer-early fall “thermal events” which affected many of the volcano’s hydrothermal areas through the early 2000′s.
Second: The current swarm strikes an area that experienced an intense earthquake swarm during the winter of 2008-2009. This event has been interpretted by University of Utah researchers (in my words) as an “aborted” eruption of the Yellowstone volcanic system.
Now, before someone takes this information and “runs with it”,…the current swarm is not even close to the energy level of the 2008-2009 event!
So, anyone reading this and running-off to their blogs to announce a coming eruption at Yellowstone is an,…well, er,…a not very prudent/intelligent person!
quote:1.2 2013/01/07 11:00:58 44.441N 110.346W 5.8 65 km (40 mi) ESE of West Yellowstone, MT
1.2 2013/01/07 11:00:58 44.431N 110.323W 10.6 67 km (42 mi) ESE of West Yellowstone, MT
-0.6 2013/01/07 02:15:44 44.437N 110.364W 2.6 64 km (40 mi) ESE of West Yellowstone, MT
2.1 2013/01/07 01:12:32 44.474N 110.553W 4.4 49 km (30 mi) ESE of West Yellowstone, MT
1.8 2013/01/07 01:12:22 44.480N 110.554W 2.0 48 km (30 mi) ESE of West Yellowstone, MT
0.8 2013/01/07 00:41:41 44.441N 110.354W 3.4 64 km (40 mi) ESE of West Yellowstone, MT
1.3 2013/01/07 00:26:45 44.437N 110.328W 5.9 67 km (41 mi) ESE of West Yellowstone, MT
0.5 2013/01/07 00:26:00 44.439N 110.354W 2.8 65 km (40 mi) ESE of West Yellowstone, MT
0.8 2013/01/07 00:19:35 44.432N 110.330W 7.9 67 km (41 mi) ESE of West Yellowstone, MT
2.0 2013/01/07 00:17:26 44.430N 110.332W 8.8 67 km (41 mi) ESE of West Yellowstone, MT
1.0 2013/01/07 00:11:47 44.442N 110.352W 3.2 65 km (40 mi) ESE of West Yellowstone, MT
0.2 2013/01/07 00:10:57 44.443N 110.355W 2.3 64 km (40 mi) ESE of West Yellowstone, MT
1.3 2013/01/07 00:09:01 44.437N 110.326W 11.1 67 km (41 mi) ESE of West Yellowstone, MT
1.1 2013/01/06 23:58:42 44.434N 110.324W 11.2 67 km (42 mi) ESE of West Yellowstone, MT
1.2 2013/01/06 23:56:01 44.436N 110.328W 11.5 67 km (41 mi) ESE of West Yellowstone, MT
1.0 2013/01/06 23:54:40 44.429N 110.317W 12.5 68 km (42 mi) ESE of West Yellowstone, MT
1.0 2013/01/06 23:49:05 44.428N 110.322W 10.6 67 km (42 mi) ESE of West Yellowstone, MT
0.9 2013/01/06 23:48:04 44.432N 110.320W 11.4 67 km (42 mi) ESE of West Yellowstone, MT
0.8 2013/01/06 23:46:44 44.442N 110.353W 1.5 64 km (40 mi) ESE of West Yellowstone, MT
1.3 2013/01/06 15:30:03 44.437N 110.341W 7.1 66 km (41 mi) ESE of West Yellowstone, MT
0.3 2013/01/06 08:08:49 44.394N 110.505W 3.5 56 km (35 mi) ESE of West Yellowstone, MT
0.9 2013/01/06 04:51:15 44.398N 110.509W 3.1 56 km (35 mi) ESE of West Yellowstone, MT
1.1 2013/01/06 04:18:56 44.399N 110.508W 2.4 56 km (35 mi) ESE of West Yellowstone, MT
0.9 2013/01/06 04:05:58 44.391N 110.502W 3.3 57 km (35 mi) ESE of West Yellowstone, MT
1.1 2013/01/06 03:31:14 44.396N 110.506W 2.2 56 km (35 mi) ESE of West Yellowstone, MT
0.8 2013/01/06 02:56:46 44.389N 110.495W 1.8 57 km (36 mi) ESE of West Yellowstone, MT
0.2 2013/01/06 02:45:30 44.398N 110.502W 2.0 56 km (35 mi) ESE of West Yellowstone, MT
0.9 2013/01/06 02:44:18 44.400N 110.502W 3.8 56 km (35 mi) ESE of West Yellowstone, MT
1.4 2013/01/06 00:37:18 44.392N 110.504W 3.6 56 km (35 mi) ESE of West Yellowstone, MT
1.0 2013/01/05 22:42:36 44.400N 110.504W 2.4 56 km (35 mi) ESE of West Yellowstone, MT
quote:Stoombootgeiser in Yellowstone voor het eerst sinds acht jaar weer actief
's Werelds hoogste geiser, de 'Stoombootgeiser' in Yellowstone Park in de Verenigde Staten, heeft woensdag weer eens gespoten. De laatste uitbarsting was alweer acht jaar geleden.
Het warme water van de geiser kwam gedurende bijna tien minuten 75 tot meer dan 90 meter hoog. De Stoomboot laat niet vaak van zich horen, er heeft wel eens 50 jaar tussen uitbarstingen gezeten.
In Yellowstone Park zijn meer geisers te vinden. Old Faithful, 'Ouwe Trouwe', is een stuk betrouwbaarder. Die geiser spuit eens om de 1,5 uur heet water de lucht in.
Een geiser ontstaat op plekken waar water verwarmd wordt door aardwarmte onder de grond. Als de omstandigheden goed zijn en de druk ver genoeg oploopt, kan een mengsel van water en stoom metershoog de lucht in spuiten'
quote:Earthquake Swarm Rocks Yellowstone
It was recently reported that a very rare triple swarm of earthquakes rocked Yellowstone National Park.
In fact, Bob Smith, a geophysics professor out of the University of Utah, says he has never seen even two swarms occur together before in all the 53 years that he has been monitoring seismic activity. Now, he he’s seen three.
An earthquake swarm, seismologists say, is an event where a sequence of earthquakes occurs in a limited geographic area over a short period of time.
Speaking about the event, Smith called it “remarkable,” asking, “How does one swarm relate to another? Can one swarm trigger another and vice versa?”
No answers are available to Smith’s questions, however, because simultaneous swarms haven’t been detected before.
Smith says he believes that at least two of the swarms are probably related to each other though.
The three swarms hit in the following areas: Lewis Lake, the Lower Geyser Basin and the northwest part of Norris Geyser Basin.
Earlier this month, on September 15, the largest earthquake to rock Yellowstone in over a year occurred about six miles north of the Old Faithful Geyser. Its magnitude was about 3.6 at its epicenter. It takes a magnitude of about 3.0 for people to feel it, a Yellowstone representative named Al Nash told the Jackson Hole News & Guide.
The recent swarms of earthquakes began on September 10 and finished up on September 16.
The University of Utah put out a statement saying that altogether 130 earthquakes with magnitudes ranging from 0.6 to 3.6 occurred in the area, with most of them being located in the Lower Geyser Basin. But, including many smaller events which were not detected, there were many more quakes than this.
The recent swarms produced four earthquakes which, although they were not large, were significant enough in size to be felt.
The first, which had a magnitude of 3.5, happened on September 13, about 17 miles northeast of West Yellowstone, Montana. The next two tremblors to be felt occurred early on the morning of September 15 with magnitudes of 3.2 and 3.4 respectively. These two occurred in rapid succession, with one being detected at 5:10 AM and the other at 5:11 AM. The quakes happened about 15 miles southeast of West Yellowstone. The largest earthquake recording during the swarm, a 3.6, was measured nearby about 4 1/2 hours later.
According to Nash, a strong enough earthquake, like the 7.3-7.5 quake that shook the Hebgen Lake area in 1959, has the potential to change the activity of the geysers in the area. And, in fact the 1959 quake did. It caused nearly 300 features to erupt, included 160 where there were no previous records of geysers. None of the current earthquakes were powerful enough to create these types of changes, however.
Smith says he believes that the current swarms of earthquakes may, in fact, be related to the 1959 earthquake. “We think that much of the seismicity is still aftershocks from that event in 1959. It can go on for hundreds of years.”
Usually only about half a dozen earthquakes occur each year in Yellowstone, Smith noted, so it is quite unusual for this level of swarm activity to rock the park.
quote:Yellowstone: Volcano vs Earthquake
YELLOWSTONE NATIONAL PARK -
Yellowstone National park is the largest super-volcano on the continent and possibly the world.
It's an underground boiling cauldron of lava, but just how likely is it to erupt or do scientists have other concerns?
"It's been 640,000 since the last eruption," says Jake Lowenstern, a scientist with the Yellowstone Volcano Observatory.
The lava pool beneath Yellowstone National Park is more than twice as big as scientists previously believed, that's according to new research from the Geological Society of America.
Scientists from the University of Utah say the lake of molten lava is nearly 50 miles long and 12 miles wide.
Jake Lowenstern, a scientist with the Yellowstone Volcano Observatory, says even a small eruption could cause a minor disaster.
"It could cause damage to the rivers, some flooding, it's going to put some ash into the air and the ash could certainly get out to the communities out here."
The park is known for the lava lake that fuels all the hot springs.
Scientists don't think the super-volcano will erupt, but the real risk to the region comes from earthquakes.
"There's going to be more earthquakes, the ground is going to move more and molten rock can't move up into this geyser system without causing explosions."
Researchers analyzed, get this, 4,500 earthquakes in and around Yellowstone from 1985 to 2013.
Scientists say the likelihood of a major quake greater than magnitude 7 is just over a tenth of a percent which is a thousand times more likely to happen then a super eruption.
"We do have the Geyser system at Yellowstone can be unstable at time and it can hurl rocks and throw them out ... We get earthquake swarms. We have the ground moving up and down at Yellowstone."
The last major earthquake in the area measured 7.3 and was in 1959. It was the most destructive earthquake ever recorded in the Rocky Mountains.
"If you look at the time scale of Yellowstone, it has been active a couple million years, it has these things semi-regularly. There will be events again, but you might have to wait another 10,000 years before it happens."
Just in the last week, there have been 25 earthquakes in the park area according to geologists. The good news, the biggest one registered only 2.9.
Eigenlijk vroeg ik me af waarom ze er van uit gingen dat eerdere metingen niet nauwkeurig waren…quote:Zo blijken de magmakamer en de hoeveelheid superheet gesmolten gesteente twee keer zo groot dan eerdere schattingen uitwezen. De holte onder het park heeft een lengte van bijna 90 kilometer en bereikt dieptes tot 15 kilometer onder het aardoppervlak.
gemiddeld mensen leven: 70 jaar.quote:Op woensdag 11 december 2013 17:37 schreef INViCTuS het volgende:
Dat zouden wij mee kunnen gaan maken dus
Ach, dan is het wel meteen klaar voor een heleboel mensen op aarde.quote:Op woensdag 11 december 2013 17:37 schreef INViCTuS het volgende:
Dat zouden wij mee kunnen gaan maken dus
En als alle ogen op Yellowstone gericht zijn barst er ergens anders op de aardkloot een supervulkaan uit die misschien nog nieteens ontdekt was. Ze schijnen zich ook onder oceanen te bevinden.quote:Op woensdag 11 december 2013 17:48 schreef Tranquilize het volgende:
Altijd maar dat doemdenken over Yellowstone.
Als ie barst dan barst ie, niemand weet wanneer hij zal barsten, dus waarom is er altijd zoveel gedoe over?
En in de waddenzee!quote:Op woensdag 11 december 2013 18:50 schreef DemonRage het volgende:
[..]
En als alle ogen op Yellowstone gericht zijn barst er ergens anders op de aardkloot een supervulkaan uit die misschien nog nieteens ontdekt was. Ze schijnen zich ook onder oceanen te bevinden.
Voor mij ligt de Laacher See vulkaan in Duitsland net zo ver weg (of dichtbij) en die boert nog regelmatig wat CO2 op,quote:Op dinsdag 17 december 2013 15:55 schreef TheRussianBear het volgende:
De Zuidwalvulkaan was een gewone stratovulkaan die voor het laatst actief was 120 miljoen jaar geleden. Er is geen magmatoevoer meer daar. Die vulkaan is dus duidelijk dood.
quote:Experts are now creating plans to deal with a sudden blast but scientists predict that the eruption is likely happen in the next ten years.
Ach, doemdenkerij. Ik geloof best dat daar een supervulkaan zit die een vulkanische winter kan veroorzaken, maar dat gaat echt niet binnen nu en tien jaar gebeuren.quote:Op maandag 6 januari 2014 21:01 schreef DemonRage het volgende:
*kutkick*
Vanwege: 'Supervulkaan roeit hele mensheid uit'
en de bronverwijzing: http://www.dailystar.co.u(...)uld-erupt-ANY-SECOND
[..]
Nou, zo'n -12,33 graden pak hem beet.quote:Op maandag 6 januari 2014 21:50 schreef richolio het volgende:
Hoe koud wordt het dan zo'n beetje, als er een ijstijd komt?
quote:A major step to predicting when supervolcanoes will explode
Scientists have learned that massive caldera volcanoes, like the one stewing beneath Yellowstone, are ruled by geological processes far different than the ones governing conventional volcanoes. These massive reservoirs of magma can explode spontaneously — an important piece of insight that can help us predict a future disaster.
Super-eruptions are extremely rare, occurring once every 100,000 years or so. Disturbingly, these cataclysmic geological events aren't archaic phenomena; we know of at least 20 supervolcanoes on Earth, including Yellowstone, Lake Toba in Indonesia, Lake Taupo in New Zealand, and the Phlegraean Fields in Italy. Scientists say it'll only be a matter of time before the next Big One — an event that could eject upwards of 1,000 cubic kilometers of ash into the sky.
maller volcanoes, like Mt. Pinatubo, are typically triggered by earthquakes or other external factors; they're powered as magma shoots into the volcanic chamber, increasing internal pressure to the point when an explosion occurs. But supervolcanoes, which consist of massive reservoirs of magma deep beneath the surface, are ruled by considerably different processes.
A recent study conducted by a Swiss team from ETH Zurich now shows that the mechanism behind these eruptions is buoyant magma — the same force that makes it difficult to hold a basketball underwater. To reach this conclusion, the researchers simulated the intense pressure of heat in the caldera of a supervolcano by using an experimental station called a high pressure beamline. They filled synthetic magma into a diamond capsule and shot high-energy X-rays inside to monitor changes as the mixture reached critically high pressures. By doing so, they could calculate the amount of pressure required to induce a spontaneous eruption (their samples reached pressures of up to 36,000 atmospheres and temperatures of nearly 1,700°C — similar to the conditions inside a magma chamber).
Results showed that the mounting pressure caused by magma buoyancy can crack more than 6 miles (10 km) of the Earth's crust above the volcano chamber. Eventually, the magma penetrating these cracks will reach the Earth's surface. But as it rises, it expands violently, causing a tremendous explosion. Discouragingly, this research shows that supervolcanic eruptions could happen 10 to 100 times more often than previously assumed.
The good news — such that it is — is that we will be able to see this disaster coming, particularly at Yellowstone. Speaking to the BBC, geologist Wim Malfait said the ground would probably rise hundreds of meters. He believes that Yellowstone currently has 10-30% partial melt, and that the overpressure required for an eruption requires at least 50%. What's more, it can take hundreds of millions of years for this buoyancy force to create the pressure required for an explosion. It doesn't appear that Yellowstone is going to blow any time soon. But given this new insight, geologists can now start to monitor the conditions within this and other calderas in hopes of predicting a future eruption.
Met alle tegenstrijdige berichten kunnen we eigenlijk alleen maar afwachten en hopen dat het nog ver weg is.quote:Op dinsdag 7 januari 2014 11:22 schreef Frutsel het volgende:
No Yellowstone will not erupt within the next ten years...
[..]
In een ander artikel staat toch dat yellowston om de 600.000 jaar uitgebarsten is, dit is compleet in tegenspraak met de 100 miljoenen jaren voor de theoretische drukopbouw.quote:Op dinsdag 7 januari 2014 11:22 schreef Frutsel het volgende:
No Yellowstone will not erupt within the next ten years...
[..]
What's more, it can take hundreds of millions of years for this buoyancy force to create the pressure required for an explosion. It doesn't appear that Yellowstone is going to blow any time soon
Dat is gemiddeld. Dus de kans dat ie nog uitbarst in ons leven is heel klein. Dus hoeraquote:Op dinsdag 7 januari 2014 18:12 schreef Basp1 het volgende:
[..]
In een ander artikel staat toch dat yellowston om de 600.000 jaar uitgebarsten is, dit is compleet in tegenspraak met de 100 miljoenen jaren voor de theoretische drukopbouw.
Dat is gelukkig niet zo heel koud. Tijd om mijn herfstjas uit de kast te pakkenquote:Op maandag 6 januari 2014 22:15 schreef Saekerhett het volgende:
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Nou, zo'n -12,33 graden pak hem beet.
quote:Op dinsdag 7 januari 2014 18:26 schreef richolio het volgende:
[..]
Dat is gemiddeld. Dus de kans dat ie nog uitbarst in ons leven is heel klein. Dus hoera
Die 100 miljoenen jaren voor de magma opbouw lijken me zo onwaarschijnlijk lang. 100 miljoen jaar geleden zaten we nog niet eens in het krijt tijdperk en zat noordamerika nog zo goed als vast aan europa.quote:Op dinsdag 7 januari 2014 18:26 schreef richolio het volgende:
[..]
Dat is gemiddeld. Dus de kans dat ie nog uitbarst in ons leven is heel klein. Dus hoera
quote:4.8 quake strikes Northern Yellowstone Park
A 4.8 earthquake shook the northern part of Yellowstone National Park early Sunday.
The University of Utah Seismograph Stations reports the earthquake occurred at 6:34 a.m. about 4 miles north-northeast of the Norris Geyser Basin. The university reports it was felt in the Montana border towns of West Yellowstone and Gardiner, both about 20 miles from the epicenter.
There were no immediate reports of damage. There are few visitors in the park this time of year.
Yellowstone sees frequent small earthquakes. Since Thursday, there have been at least 25 recorded in the nation's first national park.
quote:Op maandag 31 maart 2014 21:52 schreef Frutsel het volgende:
http://www.inquisitr.com/(...)ping-the-park-video/
Dank voor de link, leuke sitequote:Op dinsdag 1 april 2014 18:32 schreef DemonRage het volgende:
Niburu.co duikt er ook bovenop:
http://niburu.co/index.ph(...)=37:wereld&Itemid=50 (gerelateerd)
en
http://niburu.co/index.ph(...)=37:wereld&Itemid=50 (over yellowstone)
Je hebt ook nog http://www.niburu.nl. Ooit was het één site, maar blijkbaar zijn de hosters op eigen houtje verder gegaan met ieder hun eigen site, vandaar dat er nou ook http://www.niburu.co is.quote:
Wederom bedankt, ik kom de avond wel door zo.quote:Op dinsdag 1 april 2014 18:39 schreef DemonRage het volgende:
[..]
Je hebt ook nog http://www.niburu.nl. Ooit was het één site, maar blijkbaar zijn de hosters op eigen houtje verder gegaan met ieder hun eigen site, vandaar dat er nou ook http://www.niburu.co is.
quote:Op vrijdag 11 juli 2014 14:56 schreef jogy het volgende:
Zal het nu dan eindelijk echt echt gebeuren of is het weer zo'n dooie mus situatie?
Dit. Vol goede moed lezen, hoe meer ik las, hoe meer ik dacht ''Wat is deze?quote:Op vrijdag 11 juli 2014 14:53 schreef Nattekat het volgende:
Hoe verder ik in het bericht kom, hoe meer ik het een onzinbericht vind. Zeker uitgegeven door een hippie, pas als er een normaal bericht komt ga ik het serieus nemen...
Het komt dan ook van niburu.coquote:Op vrijdag 11 juli 2014 15:00 schreef Chef_M het volgende:
Dit. Vol goede moed lezen, hoe meer ik las, hoe meer ik dacht ''Wat is deze?''
Wel een goeie site, die bron. Je kan er ook UFO-waarnemingen doorgeven.quote:Op vrijdag 11 juli 2014 14:53 schreef Nattekat het volgende:
Hoe verder ik in het bericht kom, hoe meer ik het een onzinbericht vind. Zeker uitgegeven door een hippie, pas als er een normaal bericht komt ga ik het serieus nemen...
Volkskrantquote:Op vrijdag 11 juli 2014 15:02 schreef Hyperdude het volgende:
[..]
Wel een goeie site, die bron. Je kan er ook UFO-waarnemingen doorgeven.
Mooi toch
http://volcanoes.usgs.gov/activity/status.php. geeft niet veel bijzonders. Maar die zitten ook in het complot.
Bijna een jaar oud manquote:
Een generiek bericht uit 2013. Zegt helemaal niets over een direct gevaar ofzo. Kan je wel allemaal berichtjes gaan verzamelen maar een punt maken doe je niet. Ja Yellowstone is een gebied vol thermische activiteit maar wanneer en of er iets gaat gebeuren daar is hooguit op geologische schaal een beetje te gokken.quote:
Die gaten in het asfalt! HET BEGINT!!! RUN!quote:
Wat verwacht men dan precies dat de Amerikaanse overheid er aan doet, een wet opstellen die het voor vulkanen verbiedt om uit te barsten?quote:Dit rapport is ook ter beschikking gesteld van de Amerikaanse regering die er vervolgens niks mee doet
Probleem is met Yellowstone dat deze in theorie nogal wat wereldwijde heibel kan schoppen volgens mij. Als die knalt dan knalt de wereld meequote:Op vrijdag 11 juli 2014 15:30 schreef Basxt het volgende:
zolang ons kleine nederlandje maar heel blijft en ik kan blijven fokken is het geen probleem
Of eindelijk eens iets doen aan CO2 uitstoot?quote:Op vrijdag 11 juli 2014 15:42 schreef Tocadisco het volgende:
[..]
Wat verwacht men dan precies dat de Amerikaanse overheid er aan doet, een wet opstellen die het voor vulkanen verbiedt om uit te barsten?
ken ik niet. denk ik.quote:Op vrijdag 11 juli 2014 15:44 schreef jogy het volgende:
[..]
Probleem is met Yellowstone dat deze in theorie nogal wat wereldwijde heibel kan schoppen volgens mij. Als die knalt dan knalt de wereld mee. Ken je de film 'the road'?
.
quote:Op vrijdag 11 juli 2014 15:43 schreef DeRakker. het volgende:
[..]
Is dat bijzonder? gaten in het wegdek?
Foto's van het wegdek in bijv. België.
[ afbeelding ]
[ afbeelding ]
The Road (2009) - IMDbquote:
Alleen als je dicht in de buurt zit, de rest verhongerd/bevriest en gaat op die manier een stuk trager dood.quote:en boeiegaan we allemaal tegelijk
De as en gevolgen binnen de grenzen van de VS houden natuurlijk.quote:Op vrijdag 11 juli 2014 15:42 schreef Tocadisco het volgende:
Wat verwacht men dan precies dat de Amerikaanse overheid er aan doet, een wet opstellen die het voor vulkanen verbiedt om uit te barsten?
Ziet er altijd vaag uit ja, maar niet ongewoon. Ik was in Indonesie in een vulkanisch gebied en daar had je gewoon diepe gaten in de natuur (niks geen hekjes oid) waar zwaveldamp uit kwam. Als je te dichtbij kwam ging je direct over je nek. Maar soms liep er een weg langs en dan zag je idd dit op de plek waar de damp vaak neersloeg.quote:
2012 niet gezien? Je wordt hooguit iets omver geblazen als Yellowstone naast je ontploft..quote:Op vrijdag 11 juli 2014 15:39 schreef spijkerbroek het volgende:
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Die gaten in het asfalt! HET BEGINT!!! RUN!
Goed genoeg om 1 April 2014 te spotten op die pagina.quote:Op vrijdag 11 juli 2014 23:59 schreef Drugshond het volgende:
Dit topic is niet geheel uit mijn handen... maar eerder van mijn broer.
Ik post zeg maar op zijn ingevingen (en nee hij is niet LTS-zwakstroom).
...
----
Hoe goed is jullie Zuid Afrikaans?
...
Vroeg ik me ook al af... en dan nog wel Niburu...quote:Op zaterdag 12 juli 2014 11:13 schreef Basp1 het volgende:
Waar zijn je researchskills gebleven drugshond? Een topic dat al vanaf 2005 loopt.
WKN / Supervulkaan Yellowstone #2
quote:How to keep things hot at Yellowstone and Katla: Just add water
Two volcanoes that get the interwebs all hot and bothered have made the news in the last week. First, Katla in Iceland produced some glacial flooding (jökulhlaups) that followed some earthquakes. Second, over at everyone’s favorite caldera, Yellowstone, there has been a lot of buzz over roads melting due to heat from the volcano. Now, as odd as it might seem, these two events are connected by the same process: geothermal (and hydrothermal) activity. When it comes down to it, most volcanoes are sitting on big heat sources. One way to lose the heat is by erupting, but probably the most important way to lose the heat is by the circulation of water in the crust. This water help keep things hot by efficiently moving heat generated by the magma that might be 5-6 kilometers (or more) below the surface and bringing it up to the surface — all of this happening when there is no threat of an eruption.
When you examine the history of a volcano, you’ll quickly see it spends much of its existence not erupting. However, during those periods of quiet between eruptions, there is plenty going on beneath the volcano. The magma is cooling and releasing heat and fluids in the surrounding rocks, causing the development of a hydrothermal system above the cooling magma. This is usually the top 5 kilometers of crust above the magma, where cracks in the rocks can help hot fluids rise from the magma and cool fluids (like rainwater or snowmelt) percolate down into the crust and heat up. So, how hot does it get under a volcano? Well, by examining the exposed innards of extinct volcanoes, we can see how much alteration the rocks and minerals have experienced. This is an important step in understand how certain valuable ore deposits, like porphyry copper, form above bodies of magma under volcanoes.
Looking at these zones of hydrothermal alteration, it is clear that the subsurface temperatures get hot — upwards of 300-500°C even multiple kilometers above any cooling magma body. Now, that heat isn’t getting there by conduction alone. Rock isn’t a very good conductor, so heat won’t travel far. However, if you heat up water traveling through cracks in the rock, you can transport a lot of heat upwards. That’s because water has a high heat capacity – think about how the Gulf Stream brings warm water from the tropics to the North Atlantic to keep Europe warm. That is what allows all the alteration to occur and for hydrothermal systems to form. These hydrothermal systems are constantly changing based on the seasons (thanks to changing access to water percolating into the crust), seismicity that opens and closes cracks and yes, even magma moving. However, most of the time, the changes in the system are merely due to new routes these hot fluids take to reach the surface.
What are the manifestations of these hydrothermal fluids? You see some of them at most active volcanoes: steam vents (fumaroles), hot springs, geysers, mud pots. Each is a different way heat escapes the ground. Steam vents tend to be the hottest, releasing steam (with other volcanic gases) at temperatures of 300-500°C. Geysers are explosions of superheated water, so they will be ~100°C. Hot springs and mud pots tend to be much cooler, with temperatures usually 20-70°C, depending of the vigor of the spring or geyser.
Glacial flooding from underneath Mýrdalsjökull in Iceland, seen at Múlakvísl. Photo by the Icelandic Met Office.
Glacial flooding from underneath Mýrdalsjökull in Iceland, seen at Múlakvísl. Photo by the Icelandic Met Office.
So, even moving water through the crust can bring a lot of heat upwards and that is common at most volcanoes — as are changes in the hydrothermal system over time. So, what is happening at Katla and Yellowstone?First, at Katla, the hydrothermal system works underneath a large ice cap (Mýrdalsjökull). Especially during warmer months, more water can percolate into the crust, causing changes in the hydrothermal system (which, by itself, can generate earthquakes). If more heated water and steam is allowed to reach the surface, then more ice can melt and pond until it is catastrophically released as a flood. Reports from the Iceland Met Office support this idea – the waters are warm as they come out from under the glacier. However, unlike an eruption-driven event, the melting isn’t accompanied by a continuously increasing number of earthquakes that would betray magma moving. So, the most likely explanation for these floods is increasing melting due to changes in the hydrothermal (geothermal) system, not an eruption. These sorts of floods have happened before during this time of year at Katla, sometimes more dramatic than others.
Now, at Yellowstone, we have a different manifestation of the same thing. The news has splashed images of melting roads on Firehole Lake Drive in an area with intense hydrothermal activity. The usual suspects (e.g., the Yellowstone disaster groupies) want to say this is evidence that an eruption is in the works. Well, again, sorry to disappoint the lunatic fringe, but it isn’t. Instead, this is a sign that the hydrothermal system under Firehole Lake Drive has shifted some — maybe due to the constant seismicity that gently shakes Yellowstone, maybe due to the water table, maybe even due to the road itself — and now heat is coming up directly under the road. Now, asphalt like that can melt at temperatures as low at ~50-70°C, so well within the range of most hydrothermal features. Measures of the road surface by NPS workers are ~70°C, so we’re well within the range of temperatures needed to melt the road. Just move where that hot spring or fumarole is coming up and boom, you have heat under the road, melting it.
De commentaren gaan voornamelijk over god en dat het goed gaat komen met de geloofsgekkie'squote:Op vrijdag 8 augustus 2014 12:04 schreef TheRipper het volgende:
makkelijk vertaald uit de bron
http://civictribune.com/yellowstone-evacuated-experts-claim-super-volcano-erupt-within-weeks/
dit bericht is van 3 augustus en de commentaren zijn beter dan het artikel zelf.
quote:Yellowstone Supervolcano Eruption Would Doom the United States
Melted roads, the strongest earthquake in more than 30 years, spiking gas emissions from hot springs, animals purportedly "fleeing" the park's boundaries — all those events must be signs that the supervolcano lying dormant beneath Yellowstone National Park is poised for the first eruption in 70,000 years, right?
Wrong. As the head of the U.S. Geological Survey's (USGS) Yellowstone Volcano Observatory, Jacob B. Lowenstern, told The Billings Gazette, there's no "abnormal" activity going on beneath Yellowstone.
"The probability of a large … eruption within the next few thousand years is exceedingly low," a USGS report concludes.
But say the supervolcano were to erupt today, what sort of impacts would the United States experience? Thanks to new research from the USGS we finally have some answers, and the findings are decidedly grim.
According to the report, a major eruption at Yellowstone's supervolcano would send a plume of ash with a volume roughly 850 times greater than that of the one observed during the eruption of Mount St. Helens into the atmosphere. Areas just outside ground zero of the supervolcano could see more than 3 feet of ash, which would kill crops, electronic communication and travel to and from the areas. Even New York City, more than 1,500 miles away, would see ash from the Yellowstone eruption, albeit in lesser amounts.
As Discovery notes, such a large quantity of ash could also cause global temperatures to plummet. Weather patterns could also shift in an order of magnitude far greater than that of the Tambora eruption of 1815, one of the most devastating volcanic eruptions in recorded history. As Slate notes, the eruption of Tambora brought drought, disease and an unending winter to much of the globe. On the East Coast of the United States, for instance, the eruption triggered major snowstorms as late as June.
However, the most significant finding from the study is that ash plumes from larger volcanic eruptions don't follow the same rules as eruptions of a lesser magnitude. Ash plumes from smaller eruptions don't shoot as high up into the atmosphere as ash from larger eruptions, meaning the ash gets caught up in the jet stream and carried off in a set direction along with it.
But an eruption of the magnitude of Yellowstone's would shoot ash miles above Earth, well into the stratosphere, avoiding the jet stream and creating an "umbrella" of ash that would blanket the United States in a widespread, but relatively even pattern, The Billings-Gazette notes.
“In essence, the eruption makes its own winds that can overcome the prevailing westerlies, which normally dominate weather patterns in the United States,” USGS scientist Larry Mastin told Raw Story. “This helps explain the distribution from large Yellowstone eruptions of the past, where considerable amounts of ash reached the West Coast.”
Ash deposits as thick as 6 feet were detected in the geological record in areas of the Midwest, the USGS reports, partial byproducts of the three most recent major eruptions of the Yellowstone supervolcano, which took place 640,000, 1.3 million and 2.1 million years ago.
quote:Yellowstone Volcano: 98 Earthquakes Revealed In Latest Report By USGS
In the latest update of the Yellowstone volcano by the United States Geological Survey (USGS), October registered 98 total earthquakes in the Yellowstone National Park region. This seismic activity shows 21 more earthquakes than those reported in September. Although there was more activity in October, the highest magnitude was lower than the one reported in September.
The volcano’s current alert level is “normal” and current aviation color code is “green.” This is indicates that no massive eruption of the supervolcano is imminent.
According to the USGS, their information comes the University of Utah Seismograph Stations and is responsible for the operation and analysis of the Yellowstone Seismic Network.
“During October 2014, the University of Utah Seismograph Stations, responsible for the operation and analysis of the Yellowstone Seismic Network, reports 98 earthquakes were located in the Yellowstone National Park (YNP) region. The largest event was a small earthquake of magnitude 2.7 on October 29, at 3:55 PM MDT, located about 17.5 km (11 miles) south-southwest of West Thumb, YNP. This earthquake is part of a small swarm of 15 earthquakes that occurred over six hours.
“Yellowstone earthquake activity in October is at low background levels.”
As the Inquisitr reported for September, nearly half the earthquakes were registered for the Yellowstone volcano in September than there was in August. August had 207 and 71 were reported in September. The strongest earthquake that month was September 24 when it reached a magnitude of 3.2 about 9 miles south of Mammoth.; no earthquake swarms were reported in September.
Ground deformations were updated by the USGS as well in the October report.
“Ground deformation was also reported in north-central Yellowstone. The rate of subsidence is holding steady at about 5 centimeters a year.
“The Yellowstone Volcano Observatory (YVO) provides long-term monitoring of volcanic and earthquake activity in the Yellowstone National Park region. Yellowstone is the site of the largest and most diverse collection of natural thermal features in the world and the first National Park. YVO is one of the five USGS Volcano Observatories that monitor volcanoes within the United States for science and public safety.”
The National Park Service posted a notice on its website that Yellowstone volcano won’t erupt anytime soon despite rumors implying otherwise.
“Though another caldera-forming eruption is theoretically possible, it is very unlikely to occur in the next thousand or even 10,000 years.
“The most likely activity would be lava flows such as those that occurred after the last major eruption. Such a lava flow would ooze slowly over months and years, allowing plenty of time for park managers to evaluate the situation and protect people. No scientific evidence indicates such a lava flow will occur soon.”
quote:0.6 2015/10/14 06:09:01 44.756N 111.165W 10.0 11 km ( 7 mi) NNW of West Yellowstone, MT
0.7 2015/10/14 04:23:59 44.443N 110.976W 4.2 26 km (16 mi) SSE of West Yellowstone, MT
-0.2 2015/10/14 03:05:35 44.764N 111.135W 8.7 12 km ( 7 mi) N of West Yellowstone, MT
1.1 2015/10/13 23:49:14 44.779N 111.147W 13.3 13 km ( 8 mi) NNW of West Yellowstone, MT
1.1 2015/10/13 23:45:05 44.771N 111.142W 12.3 12 km ( 8 mi) NNW of West Yellowstone, MT
0.3 2015/10/13 23:29:23 44.766N 111.137W 9.1 12 km ( 7 mi) NNW of West Yellowstone, MT
-0.2 2015/10/13 23:23:12 44.771N 111.137W 8.7 12 km ( 8 mi) NNW of West Yellowstone, MT
0.1 2015/10/13 23:20:51 44.767N 111.144W 11.6 12 km ( 8 mi) NNW of West Yellowstone, MT
-0.3 2015/10/13 23:16:23 44.763N 111.210W 26.2 14 km ( 9 mi) NW of West Yellowstone, MT
1.4 2015/10/13 23:08:59 44.770N 111.138W 12.0 12 km ( 8 mi) NNW of West Yellowstone, MT
1.1 2015/10/13 23:05:02 44.770N 111.141W 12.1 12 km ( 8 mi) NNW of West Yellowstone, MT
0.8 2015/10/13 22:25:32 44.771N 111.141W 11.8 12 km ( 8 mi) NNW of West Yellowstone, MT
0.4 2015/10/13 22:17:59 44.705N 111.002W 7.9 9 km ( 6 mi) ENE of West Yellowstone, MT
0.8 2015/10/13 22:01:23 44.770N 111.144W 11.4 12 km ( 8 mi) NNW of West Yellowstone, MT
0.1 2015/10/13 21:51:31 44.764N 111.142W 7.8 12 km ( 7 mi) NNW of West Yellowstone, MT
0.1 2015/10/13 21:45:16 44.769N 111.144W 11.1 12 km ( 8 mi) NNW of West Yellowstone, MT
0.5 2015/10/13 21:44:06 44.773N 111.145W 11.9 13 km ( 8 mi) NNW of West Yellowstone, MT
0.7 2015/10/13 21:41:42 44.766N 111.141W 8.7 12 km ( 7 mi) NNW of West Yellowstone, MT
0.6 2015/10/13 21:38:33 44.769N 111.141W 9.3 12 km ( 8 mi) NNW of West Yellowstone, MT
0.9 2015/10/13 21:35:56 44.769N 111.142W 11.4 12 km ( 8 mi) NNW of West Yellowstone, MT
1.0 2015/10/13 21:32:26 44.772N 111.142W 11.7 13 km ( 8 mi) NNW of West Yellowstone, MT
0.6 2015/10/13 21:16:42 44.771N 111.147W 11.9 13 km ( 8 mi) NNW of West Yellowstone, MT
2.1 2015/10/13 21:10:38 44.783N 111.151W 13.9 14 km ( 9 mi) NNW of West Yellowstone, MT
0.8 2015/10/13 07:34:02 44.444N 110.981W 4.5 26 km (16 mi) SSE of West Yellowstone, MT
2.4 2015/10/13 06:23:07 44.450N 111.006W 8.0 25 km (15 mi) SSE of West Yellowstone, MT
1.1 2015/10/13 05:46:57 44.448N 111.002W 8.2 25 km (16 mi) SSE of West Yellowstone, MT
1.9 2015/10/13 05:29:49 44.454N 111.008W 16.0 24 km (15 mi) SSE of West Yellowstone, MT
0.8 2015/10/13 05:26:43 44.467N 110.959W 4.9 25 km (15 mi) SSE of West Yellowstone, MT
1.5 2015/10/13 01:42:17 44.750N 111.159W 9.3 11 km ( 7 mi) NNW of West Yellowstone, MT
1.0 2015/10/09 07:43:05 44.698N 110.995W 7.4 10 km ( 6 mi) ENE of West Yellowstone, MT
Een paar gigaton volgens mij. Maar het grote probleem gaat niet de energie zijn maar de enorme hoeveelheid as en stof die vrijkomt (meer dan 1.000 km3). Genoeg om hele VS onder een laag as van enkele centimeters te bedelven en een kleine ijstijd op Aarde te veroorzaken.quote:Op donderdag 15 oktober 2015 21:54 schreef Ivy_Mike het volgende:
Tering hé, als dan zo 'n supervulkaan ontploft zoals die van de Yellowstone Park, hoeveel energie in megaton komt er dan wel niet vrij?![]()
De vulkaanuitbarsting van de Krakatau en de Tambora hadden iig een kracht van 200 megaton.
er zijn meer supervulkanenquote:Op donderdag 15 oktober 2015 23:34 schreef richolio het volgende:
Eigenlijk een heel bizar idee dat morgen de VS zou kunnen worden overladen met as, en een enorm deel gewoon weg is.
Creepy.
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