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  Moderator dinsdag 21 februari 2017 @ 10:26:16 #101
8781 crew  Frutsel
pi_169040206
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quote:
New eruption fase started at Krakatau
Since February 17, 2017, a strong thermal signal is visible on satellite data from what seems to be the summit of Anak Krakatau (Child of Krakatau), the site of frequent eruptions since 1927. The last eruption of this volcano occurred on March 31, 2014 (VEI 1).

What causes the thermal signal exactly is unknown. While non-volcanic causes (e.g. forest fires) cannot be ruled out, it is more likely that a new mass of lava has arrived at the crater, probably in the form of a new dome, Volcano Discovery explains.

"In that case, Krakatau might be entering a new eruptive phase, something which would not be a surprise, statistically. So far, there is no confirmation of significant ash emissions observed, which could mean that the activity, if there is, is only effusive for now."

The last significant eruptive phase of this volcano began on July 31, 2011 and ended on September 9, 2012. It had Volcanic Explosivity Index of 2 (of 8).

February 20

The eruption at has been confirmed. VD's reader Aaron Brighton spent last night at Anak Krakatau and saw intense strombolian-vulcanian type activity from the summit.
pfcHIpl.jpg

Foto van 20 februari van Aaron Brighton via Volcano Discovery
  Moderator donderdag 21 juni 2018 @ 11:20:02 #102
8781 crew  Frutsel
pi_179939955
gB7iHVW.jpg

quote:
New Small eruption at Krakatau volcano
A small eruption took place at Krakatau volcano, located between Java and Sumatra, on June 19, 2018. The last known eruption of this volcano took place on February 19, 2017.

The eruption produced ash that rose a few hundred meters before it dissipated, Volcano Discovery reports. "Whether this is a sign of a new, more robust eruptive phase at the volcano is too early to say, but clearly shows that the volcano is restless and could be ready for a new eruption in the near to medium term future (weeks, months from now)."

Thermal radiation has increased since March 2018 and is at low to moderate levels, also suggesting that magma is near the surface.

A strong thermal signal was observed at the volcano on February 17, 2017. This activity was followed by intense strombolian-vulcanian type activity at the summit on February 19.

Its previous eruption occurred on March 31, 2014 (VEI 1).
  Moderator donderdag 21 juni 2018 @ 11:23:23 #103
8781 crew  Frutsel
  Moderator / Redactie Sport / Weblog donderdag 21 juni 2018 @ 21:31:46 #104
17650 crew  rubbereend
JUICHEN
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quote:
0s.gif Op donderdag 21 juni 2018 11:23 schreef Frutsel het volgende:
[ afbeelding ]
dit ziet er toch wel prachtig uit
DeLuna vindt me dik ;(
Op zondag 22 juni 2014 12:30 schreef 3rdRock het volgende:
pas als jullie gaan trouwen. nu ben je gewoon die Oom Rubber die met onze mama leuke dingen doet :)
  Moderator maandag 16 juli 2018 @ 21:51:18 #105
8781 crew  Frutsel
pi_180523783
quote:
Eruptions intensify at Anak Krakatau
Explosive activity at Anak Krakatau in Indonesia continues and its seismicity is reportedly going off the scale today, July 12, 2018.

"Krakatau is going crazy ... 100 times explosion a day. Very loud and could be heard until Carita, 42 km (26 miles) away," Volcano Discovery's Indonesian volcano expedition leader said July 12.

Just a few hours ago, photographer and volcano-enthusiast Řystein L. Andersen, said activity at the volcano is quite unique now. "It seems like you can now see a bright glow from the eruption from the coast of Java, 50 km (31 miles) away."

PVMBG reported there were four ash-producing events at Anak Krakatau on July 4 and 5, each lasting between 30 and 41 seconds. While inclement weather conditions prevented an estimation of the ash-plume height from the event at 05:22 local time on July 4, ash plumes from events at 14:09, 14:25, and 16:51 on July 5 rose 300 - 500 m above the crater rim and drifted N and NW.

  Moderator dinsdag 14 augustus 2018 @ 16:45:21 #106
8781 crew  Frutsel
  Moderator woensdag 15 augustus 2018 @ 10:00:16 #107
8781 crew  Frutsel
pi_181197731
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quote:
‘Child of Krakatoa’ volcano flings lava bombs hundreds of feet during mesmerizing eruption

'Lava bombs' rain down after volcano erupts in Indonesia
James Reynolds of Earth Uncut TV witnessed Indonesia's Anak Krakatau volcano erupt on Aug. 12.
The Anak Krakatau volcano in Indonesia is shooting boulders out of its crater like fireworks. The “lava bombs” (yep, that’s a real thing) hurled into the sky on Saturday were as big as trucks, according to James Reynolds, the natural disaster chaser who shot the video you’re watching above.

Anak is only a century old — not even a blip on Earth’s geological timeline — but it’s already become one of the most-watched volcanoes in the world. That probably has to do with its lineage; Anak Krakatau is, geophysically speaking, Krakatoa’s volcanic child.

Krakatoa lives in infamy for its 1883 eruption. Between the pyroclastic flow, earthquakes, ash fall and tsunamis, the volcano killed tens of thousands of people that year. The sound of the eruption was heard in Australia and as far away as Rodrigues Island, which is closer to Madagascar than it is Indonesia.

The eruption nearly destroyed the volcano entirely. What spawned from the ash and debris was a new volcano, given the name Anak Krakatau, or “child of Krakatoa.” It literally rose up out of the ocean in 1927 and has been erupting continuously in one form or another since then.

Reynolds said explosions like the one in the video were happening approximately every half hour while he was there. The video was captured with a drone.
  Moderator woensdag 15 augustus 2018 @ 10:00:30 #108
8781 crew  Frutsel
pi_181201156
quote:
Gaaf filmpje vooral dat er eerst iets omhoog gaat en dan plotseling de wat grijzere wolken van de berg af gaan rollen.
  Moderator dinsdag 25 september 2018 @ 08:52:15 #110
8781 crew  Frutsel
  Moderator / Redactie Sport / Weblog dinsdag 25 september 2018 @ 18:41:38 #111
17650 crew  rubbereend
JUICHEN
pi_182128469
:o flinke uitbarsting
DeLuna vindt me dik ;(
Op zondag 22 juni 2014 12:30 schreef 3rdRock het volgende:
pas als jullie gaan trouwen. nu ben je gewoon die Oom Rubber die met onze mama leuke dingen doet :)
  Moderator dinsdag 2 oktober 2018 @ 14:54:45 #112
8781 crew  Frutsel
pi_182273629
quote:
Krakatau volcano (Indonesia): eruption continues with no signs of weakening

The eruption of the volcano continues with no signs of weakening. Rather a slight increase in the number of reported explosions and the intensity of the heat signal can be noted on satellite data and the reports from the observatory on the coast who analyze the seismic data.
Whether the lava flow observed by Galih and his group 2 weeks ago is still active is currently unknown, but we will soon visit the volcano and report our eye-witness account afterwards.

VAAC Darwin reports near continuous ash emissions to 7-10,000 ft altitude drifting in various directions, visible on satellite data.
Zie ook:
https://en.tempo.co/read/(...)ws-Incandescent-Lava


  Moderator woensdag 31 oktober 2018 @ 11:06:04 #113
8781 crew  Frutsel
  Moderator zondag 23 december 2018 @ 10:14:52 #114
8781 crew  Frutsel
  Moderator zondag 23 december 2018 @ 10:22:40 #115
8781 crew  Frutsel
pi_183914403
quote:
Krakatau volcano news & eruption updates
Krakatoa volcano (Sunda Strait, Indonesia): possible major eruption with ash to 55,000 ft following deadly tsunami

A major explosive eruption might have occurred at the volcano earlier this morning. VAAC Darwin spotted a large cloud, possibly an ash plume from the eruption reaching approx. 55,000 ft (15 km) altitude and drifting S and SW.

Whether it is is from the eruption still needs to be confirmed, but seems rather likely. What role the yesterday's deadly tsunami plays here is also still unknown, but they are hardly unrelated.
In the meanwhile, more material is emerging on social channels about the tsunami, such as this dramatic video, showing the arrival of the first wave, destroying a band and its audience playing a concert (at the end of the video):
  Moderator zondag 23 december 2018 @ 17:03:56 #116
8781 crew  Frutsel
pi_183925320
lijkt erop dat een deel van de berg is ingestort. Krater zit nu op een andere plek.
"Light thinks it travels faster than anything. It doesn't. For wherever light travels it finds darkness has got there first and is waiting for it."
pi_183931799
Toch een prachtig ding.
Krakatau was natuurlijk een zeer krachtige vulkaan en nu daar kind Krakatau dat actief is.
Ik vind het mooi, niet van al die slachtoffers natuurlijk. Maar wel prachtig.

Maar inderdaad waarschijnlijk weer wat ingeklapt en omdat de kleine constant actief is blaast hij ook stoom af, normaal zorgt dat er ook voor dat de spanning niet opbouwt voor iets groters.
Al is het natuurlijk een relatief klein deel waar nu iets uitsteekt t.o.v. de volledige oude Krakatau.
Geen idee of echt bekend is hoeveel ervan gebruikt wordt.
pi_183996510
quote:
Anak Krakatau blijft actief: vliegverkeer omgeleid, groter gebied ontruimd

De Indonesische vulkaan Anak Krakatau blijft in activiteit toenemen. Het gebied rond de berg waar niemand mag komen, wordt daarom uitgebreid. Ook laten de autoriteiten alle vluchten omleiden.

Volgens de Indonesische luchtverkeersleiding moeten vliegtuigen uit de buurt van de vulkaan blijven vanwege de aswolken die uit de Anak Krakatau komen.

Het ministerie van Geologie heeft de alarmfase voor een nieuwe uitbarsting verhoogd van niveau 2 naar niveau 3. De gevarenzone rond de berg is uitgebreid van 2 naar 5 kilometer.

Tsunami
Zaterdag leidde een relatief kleine uitbarsting van de Anak Krakatau tot een tsunami in de Straat van Sunda. In de kustgebieden van West-Java en Zuid-Sumatra kwamen zeker 430 mensen om het leven. Er worden nog ten minste 159 mensen vermist.

De Indonesische autoriteiten vrezen voor een nog veel grotere uitbarsting. Inwoners krijgen daarom het advies om minstens 500 meter tot 1 kilometer uit de buurt van de kust te blijven.

Uit radarbeelden blijkt dat de Anak Krakatau na de uitbarsting van zaterdag veel kleiner is geworden. De zuidwestelijke helling is zo goed als verdwenen. Dat kan volgens experts betekenen dat de tsunami is veroorzaakt door een grotendeels onderzeese aardverschuiving.

Satellietfoto's zijn nog niet beschikbaar, omdat daarvoor te veel bewolking hangt rond de vulkaan.
  Moderator / Redactie Sport / Weblog donderdag 27 december 2018 @ 14:30:27 #121
17650 crew  rubbereend
JUICHEN
pi_184002997
quote:
0s.gif Op donderdag 27 december 2018 09:38 schreef Frutsel het volgende:
Leuk en interessant leesvoer en prachtige foto's

http://www.oysteinlundand(...)nami-22december2018/
:o
DeLuna vindt me dik ;(
Op zondag 22 juni 2014 12:30 schreef 3rdRock het volgende:
pas als jullie gaan trouwen. nu ben je gewoon die Oom Rubber die met onze mama leuke dingen doet :)
pi_184013186
"Light thinks it travels faster than anything. It doesn't. For wherever light travels it finds darkness has got there first and is waiting for it."
  Developer donderdag 27 december 2018 @ 22:31:44 #123
11802 crew  Light
pi_184015895
quote:
1s.gif Op donderdag 27 december 2018 21:16 schreef Ener-G het volgende:
https://gizmodo.com/befor(...)-tsunami-1831344487/

holy shit, de halve berg is weg :o
Niet heel vreemd dat je dan een tsunami krijgt. Dat gebeurde bij de oude Krakatau ook al.
pi_184018832
De oude krakatau was meer dan 800 meter hoog (en die tsunami was ook 'iets' groter) ;)
"Light thinks it travels faster than anything. It doesn't. For wherever light travels it finds darkness has got there first and is waiting for it."
pi_184027630
Maar die was eerder ook al eens geklapt de 3 eilandjes zijn daar de overblijfselen van. De hoogste tsunamis komen wel vaker door landverschuivingen zoals deze.

https://en.wikipedia.org/wiki/Megatsunami
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