Aardbevingen #19

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Magnitude ML 5.3
Region NEAR THE COAST OF WESTERN TURKEY
Date time 2017-02-06 10:58:01.7 UTC
Location 39.51 N ; 26.13 E
Depth 10 km
Distances 148 km NW of İzmir, Turkey / pop: 2,501,000 / local time: 12:58:02.0 2017-02-06
56 km NW of Mytilķni, Greece / pop: 28,400 / local time: 12:58:02.0 2017-02-06
25 km SW of Ayvacık, Turkey / pop: 6,900 / local time: 12:58:02.0 2017-02-06
15 km N of Mķthymna, Greece / pop: 1,600 / local time: 12:58:02.0 2017-02-06

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Aardbevingen treffen Lesbos en Turkse kust

ATHENE - De bewoners van het Griekse eiland Lesbos zijn maandag opgeschrikt door een serie aardbevingen. Ook aan de nabijgelegen Turkse kust voelden de mensen de grond trillen.

Drie bevingen hadden een kracht van rond de 5 en er waren ook nog acht bevingen met een kracht van tussen de 3 en 3,9. Volgens het Turkse persbureau DHA raakten in een dorp in de regio Ayvacik vijf mensen lichtgewond. Sommige huizen en schuren raakten beschadigd. De Griekse autoriteiten melden geen schade.

Het centrum van de reeks bevingen lag ongeveer 60 kilometer ten noorden van de stad Mytilene op Lesbos, op een diepte van 2 tot 12 kilometer.

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Op dinsdag 7 februari 2017 15:16 schreef motorbloempje het volgende:
Allemaal de schuld van Erdogan... en Trump. En Katie Hopkins. En Farage. De aarde kan het allemaal niet meer aan.

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Earthquake swarm hits western Turkey
A series of shallow and damaging earthquakes are shaking the tip of the Biga Peninsula in Western Turkey this month. The sequence includes four damaging M5+ earthquakes in which over 350 buildings sustained extensive damage. The quakes are occurring at the intersection of the Kestanbol Fault and the Edremit Fault Zone. ​

The strongest so far was M5.4 on February 6, 2017. This quake hit at a depth of 6 km (3.7 miles) at 13:08 UTC and was preceded by M5.2 at 08:36 UTC. The same area was hit by M5.3 at 08:08 UTC on February 7 and M5.0 at 13:55 UTC today. All quakes occurred at depths between 6 and 10 km (6.2 miles).

Since January 1, the region saw a total of 1 096 earthquakes, according to data provided by the EMSC. 879 of them occurred between February 1 and 12, and 841 between 00:19 UTC on February 6 and 13:55 UTC on February 12.

According to Volkan Sevilgen, Akın Kürēer and Hasan Elmacı (Temblor, MTA), the quakes are occurring at the intersection of the Kestanbol Fault and the Edremit Fault Zone.

As a result of the three damaging M5+ earthquakes, over 350 buildings sustained extensive damage. The Turkish Government has swiftly built a small village from container houses for those who needed shelter and asked residents not to enter any building before official building assessment.

"We calculated that the recent seismic swarm stressed the western portions of the Edremit Fault Zone by about 0.1 bar," the team wrote in their analysis.

A series of shallow and damaging earthquakes are shaking the tip of the Biga Peninsula in Western Turkey this month. The sequence includes four damaging M5+ earthquakes in which over 350 buildings sustained extensive damage. The quakes are occurring at the intersection of the Kestanbol Fault and the Edremit Fault Zone. ​

The strongest so far was M5.4 on February 6, 2017. This quake hit at a depth of 6 km (3.7 miles) at 13:08 UTC and was preceded by M5.2 at 08:36 UTC. The same area was hit by M5.3 at 08:08 UTC on February 7 and M5.0 at 13:55 UTC today. All quakes occurred at depths between 6 and 10 km (6.2 miles).

Since January 1, the region saw a total of 1 096 earthquakes, according to data provided by the EMSC. 879 of them occurred between February 1 and 12, and 841 between 00:19 UTC on February 6 and 13:55 UTC on February 12.

According to Volkan Sevilgen, Akın Kürēer and Hasan Elmacı (Temblor, MTA), the quakes are occurring at the intersection of the Kestanbol Fault and the Edremit Fault Zone.

As a result of the three damaging M5+ earthquakes, over 350 buildings sustained extensive damage. The Turkish Government has swiftly built a small village from container houses for those who needed shelter and asked residents not to enter any building before official building assessment.

"We calculated that the recent seismic swarm stressed the western portions of the Edremit Fault Zone by about 0.1 bar," the team wrote in their analysis.

Earthquake swarm in Western Turkey with faults - February 2017

Credit: Temblor.Net

"If we start seeing larger numbers of small earthquakes on the Edremit Fault Zone, it would suggest the fault was triggered by the seismic swarm. The last large earthquake on the Edremit fault was a magnitude 6.7 earthquake in 1944. Therefore, a similar quake in the future would not be surprising. Thus, we think the seismicity around the Edremit fault should be closely monitored."

Seismic swarms generally occur in geothermal areas where faults are lubricated by hot water, making them easier to slip, they explained.

"This area is one of the most active geothermal regions in Turkey, with some water temperatures reaching 174 ŗC (345 ŗF). Water boils at 100 ŗC (212 ŗF) at sea level but the high pressure environment underground prevents evaporation. Most seismic swarms end without triggering a large earthquake."

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Region: SOUTH OF FIJI ISLANDS
Geographic coordinates: 23.203S, 178.845W
Magnitude: 6.9
Depth: 396 km
Universal Time (UTC): 24 Feb 2017 17:28:44
Time near the Epicenter: 25 Feb 2017 05:28:44
Local standard time in your area: 24 Feb 2017 18:28:44

Location with respect to nearby cities:
436 km (271 miles) WSW (238 degrees) of NUKU'ALOFA, Tonga
3111 km (1933 miles) WSW (253 degrees) of PAPEETE, Tahiti, French Polynesia

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Earthquake on the beach: Scientists think a 7.4 temblor could reach from L.A. to San Diego

The discovery of missing links between earthquake faults shows how a magnitude 7.4 earthquake could rupture in the same temblor underneath Los Angeles, Orange and San Diego counties, a new study finds.

Such an earthquake would be 30 times more powerful than the magnitude 6.4 earthquake that caused the 1933 Long Beach earthquake, which killed 120 people.

But to get to a 7.4, the earthquake would not only have to again rupture the Newport-Inglewood fault in Los Angeles and Orange counties. The temblor would also have to jolt the adjacent Rose Canyon fault system, which runs all the way through downtown San Diego and hasn’t ruptured since roughly 1650.

“These two fault zones are actually one continuous fault zone,” said Valerie Sahakian, the study’s lead author, who wrote it while working on her doctorate at Scripps Institution of Oceanography at UC San Diego. Sahakian is now a research geophysicist with the U.S. Geological Survey.

In the past, scientists reported gaps between the two fault systems of as much as 3 miles apart. But the latest study shows the gaps are actually less than 1¼ miles apart.

“That kind of characterizes it as one continuous fault zone, as opposed to two different, distinct fault systems,” Sahakian said, making it far easier for an earthquake to keep shaking land as it races down a longer fault, widening the seismic reach of the temblor.

There had already been consensus among scientists over the last three decades that the fault systems were actually one, said Caltech seismologist Egill Hauksson, who was not involved with this study. “We now have real evidence that this is the case,” Hauksson said.

The difficulty in proving it was caused by the location of the gap — under the Pacific Ocean between Newport Beach and La Jolla. Drawing a better map meant trying to figure out where the fault was underwater.

So Scripps researchers hopped aboard boats, and in the fall of 2013 spent more than 100 days at sea collecting data. They created an image of what the earth looks like under the seafloor to estimate where the fault lies.

To do so, they used a technique kind of similar to how submarines use sonar or bats use echoes to see.

From the ship, scientists towed a machine that generates acoustic waves that bounce off the seafloor and deeper underground layers and returns to the ship, giving the data the scientists need to produce a better map of where the faults actually are located. The researchers also used previously collected data to perfect their new map.

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4.8 magnitude earthquake 62 km from Dorp Soto, Curacao
28 minutes ago

UTC time: Thursday, March 09, 2017 13:29 PM
Your time: Thursday, March 9 2017 2:29 PM
Magnitude Type: mb
USGS page: M 4.8 - 62km WSW of Dorp Soto, Curaēao
USGS status: Reviewed by a seismologist