Ik zag hier laatst een nieuwsbericht voorbij komen over de slapende vulkaan in Yellowstone National Park waar de grond stijgt door opname van lucht.

Wat ik me afvraag is in hoeverre een (zware) aardbeving in, laten we zeggen, Californië invloed heeft op de vulkaan in Yellowstone Park, aangezien het relatief niet heel ver van elkaar vandaan ligt...

Dit is een aardbevingsmap van Yellowstone Park
http://www.seis.utah.edu/req2webdir/recent...ellowstone.html


Earthquakes recorded by University of Utah Seismograph Stations for the last week (168 hours).
Recent Earthquakes in the Intermountain West
All Earthquakes on Index Map
MAP 4.1 2011/04/05 01:05:25 44.617N 112.098W 5.0 29 km (18 mi) NNE of Spencer, ID

MAP 4.1 2011/04/01 06:56:28 43.027N 110.343W 5.1 18 km (11 mi) S of Bondurant, WY
http://www.seis.utah.edu/req2webdir/recent...es/quakes0.html



ANSS Intermountain West Region Special Map
http://www.seis.utah.edu/req2webdir/recent...s/anss_imw.html

Citaat van roytjee24, dinsdag 5 april 2011, 19:23 uur bij Japan waren er toch ook al allemaal van die zwakke schrokken voor die zware, misshien heeft die geoloog dan toch gelijk en komt er naar die veel zwakke schrokken een hele zware. Ik weet het niet.


Wel frappant dat bij Indonesie vandaag zoveel bevingen zijn.

Tuesday April 5 2011, 17:53:49 UTC Kepulauan Talaud, Indonesia 4.7 54.1
Tuesday April 5 2011, 13:57:28 UTC southern Sumatra, Indonesia 4.9 25.2
Tuesday April 5 2011, 11:48:53 UTC Kepulauan Talaud, Indonesia 4.5 28.2
Tuesday April 5 2011, 11:14:15 UTC Kepulauan Talaud, Indonesia 6.0 17.6
Tuesday April 5 2011, 07:46:18 UTC Kepulauan Talaud, Indonesia 5.4 12.4

Deze weer in de "Ring of Fire"

Magnitude: 5.2
DateTime: Wednesday April 6 2011, 11:25:53 UTC
Region: Kermadec Islands region
Depth: 18.3 km

Bij Nieuw Zeeland (ten oosten en noorden van Auckland)

http://quakes.globalincidentmap.com/map_detail.php?id=103165

Een aantal zwaardere aardbevingen vandaag in de zgn. "Ring of Fire"

NB
Op de afbeelding staat rechtsboven:
kaart satelliet beide
Als je op satelliet OF beide drukt dan zie je de breuklijnen binnen de "Ring of Fire"



Deze bevingen van vandaag zijn precies op 1 van de breuklijnen;

Friday April 15 2011, 06:50:26 UTC
Andreanof Islands, Aleutian Islands, Alaska
Magnitude 5.4
Diepte 21.6 km.
http://quakes.globalincidentmap.com/map_detail.php?id=105074


Friday April 15 2011, 02:06:27 UTC
Tonga
Magnitude 5.9
Diepte 10.3 km.
http://quakes.globalincidentmap.com/map_detail.php?id=105042

Dit is (helaas) een "hit" op Google search.


De film uit 2006:
"The Sinking of Japan"

Hier een aantal trailers:
http://www.youtube.com/watch?v=NeJ6Cftc-E8...feature=related

http://www.youtube.com/watch?v=cjTw9qaiE5w

23 april 2011

Quake research mission to 'ring of fire'


The Pacific Ring of Fire
http://news.bbcimg.co.uk/media/images/5231...853e349f178.jpg


An expedition is getting under way in the South Pacific to investigate one of the most seismically-active fault lines in the world.
Researchers are planning to study the Tonga Trench - a deep feature where the Pacific tectonic plate is being forced under the Indo-Australian plate.

The island nation of Tonga is regularly hit by tremors - most recently a 6.4 magnitude quake offshore last month.
The research expedition will last about one month.
The focus of the study will be an unusual zone on the seabed where undersea volcanoes are being dragged into the fault.
Scientists want a better understanding of how the submarine mountains affect the likelihood of earthquakes.

The volcanoes lie on the 4,000km-long Louisville Ridge and either act as a brake on the Pacific plate - or intensify the quakes which follow.

The area where they are pulled into the seabed suffers relatively fewer tremors than other stretches of the fault line.
The study - funded by Britain's Natural Environment Research Council (Nerc) - will carry out surveys and develop 3D models during seven transits of the region.

One of the lead scientists on the expedition, Professor Tony Watts of Oxford University, told BBC News:
"We want to know whether subducted seamounts are holding up earthquakes or whether they cause earthquakes.
"This is important to find out so that we can learn what controls earthquakes and make better assessments about where they may occur in the future."

Subduction zones like the Tonga Trench can trigger tsunamis - as happened off Japan last month and off Sumatra on Boxing Day 2004.

One recent study of an earthquake in Peru in 2001 showed that underwater mountains may have held up the quake for 40 seconds before rupturing.
A study of the Nankaido earthquake in Japan in 1946 successfully imaged a seamount that had been dragged 10km deep - and apparently limited the scale of the rupture and the tsunami risk.

According to Professor Watts, more data is needed on the deep structure of the Tonga Trench to understand the forces at work.
"We need to know whether the seamounts are more or less intact as they are carried into the trench or have been damaged or decapitated.
"If we find that there is a link between seamounts and earthquakes then imaging of the seafloor will put us in a much better position to understand future quakes and tsunamis."






Bron: BBC News

Toeval ??
Allemaal op ca. 10 km. diepte ??


Aardbeving 6,1 bij Panama
Saturday April 30 2011, 08:19:16 UTC
Region: south of Panama
Magnitude 6,1
Diepte: 10 km.
http://quakes.globalincidentmap.com/map_detail.php?id=108193


Saturday April 30 2011, 06:07:53 UTC
Region: Baja California, Mexico
Magnitude: 4.3
Diepte: 10 km.
http://quakes.globalincidentmap.com/map_detail.php?id=108193


Saturday April 30 2011, 05:45:35 UTC
Region: Bismarck Sea
Magnitude: 5.5
Diepte: 10.2 km.
http://quakes.globalincidentmap.com/map_detail.php?id=108179


Friday April 29 2011, 22:31:59 UTC
Region: Gulf of California
Magnitude: 5
Diepte: 10.5 km.
http://quakes.globalincidentmap.com/map_detail.php?id=108146

vanmorgen ook een lichte beving in NewYork
http://earthquake.usgs.gov/earthquakes/rec.../ld60015901.php

http://earthquake.usgs.gov/ <-- hier kan iedereen zelf de bevingen volgen.

Het is niets bijzonders, dat het rommelt. Dat doet de aarde al eeuwen en eeuwen en eeuwen lang.