Very powerful but probably harmless seaquake near southern Irian Jaya, Indonesia

Coat of Arms (Lambang) of Provinsi Papua Barat...

Image via Wikipedia

UPDATE 13:43 UTC
Aftershock of M 4.6 in the same area.
USGS has downgraded the Magnitude to 6.0 from 6.1

Earthquake Report comment :
Epicenter in the sea to the south of Irian Jaya. 128 km (80 miles) N (353°) from Dobo, Aru Islands, Indonesia
This very powerful earthquake doesn’t look dangerous to earthquake-report.com as the distance to the closest shoreline seems to be at least 70 km. The underwater slopes near the epicenter seems to be moderate, thus the chance on even a local avalanche generated tsunami seems very limited to none.
Maximum calculated shaking on nearest coastal villages : III Mercalli = Weak shaking

Most important Earthquake Data:
Magnitude : M 6.1 – downgraded afterwards to M 6.0
Wednesday, November 03, 2010 at 08:18:17 PM at epicenter
Depth (Hypocenter) : 29,1 km
Send an “earthquake experience report” for this earthquake
Geo-location(s) :
128 km (80 miles) N (353°) from Dobo, Aru Islands, Indonesia
267 km (166 miles) WSW (249°) from Enarotali, Irian Jaya, Indonesia

Links to important maps
USGS Did You Feel It Map
Google satellite map of the area showing the kind of terrain the earthquake took place
USGS Shaking map
USGS historic earthquakes map
USGS Pager map
GDACS Green Earthquake Alert (Global Disaster Alert and Coordination System)
LIVE SEISMOGRAM (nearest Seismograph station)

* GDACS (Global Disaster Alert and Coordination System) provides near real-time alerts about natural disasters around the world. GDACS is a Joint Initiative of the United Nations and the European Commission

QuakeSOS has been developed to help actively people who are caught in an earthquake + delivers "Earthquake Report" information on your iPhoneQuakeSOS is a FREE iPhone application developed by Armand Vervaeck, the creator and main contributor to Earthquake Report. The Application simplifies immediate group communication to friends and family members (with your exact GPS location) and is constantly feeding the users with “Earthquake Report” news. Together with your own family and friends, QuakeSOS will be your closest earthquake friend.

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Earthquakes list September 23, 2010

M 4.5      2010/09/23 22:09    Depth 10.0 km     KHABAROVSKIY KRAY, RUSSIA
Epicenter in a wilderness area of western Siberia

M 5.4      2010/09/23 17:13    Depth 14.1 km     OFF THE EAST COAST OF KAMCHATKA, RUSSIA
Powerful shallow earthquake in a merely unpopulated area with beautiful nature !

M 5.3      2010/09/23 16:36    Depth 44.5 km     LIBERTADOR O’HIGGINS, CHILE
Strong aftershock near Curico. A little deeper than normal

M 5.5      2010/09/23 12:53    Depth 40.0 km NEW BRITAIN REGION, PAPUA NEW GUINEA
Powerful earthquake just on the subduction hang and close to a number of coastal villages. No roads in the area. Maximum expected Mercalli = V = max. moderate shaking

M 4.7   2010/09/23 12:08     depth 139.0 km KAMCHATKA PENINSULA, RUSSIA
In the middle of the wilderness area in the Kamchatka peninsula. Moderate earthquake

M 4.8      2010/09/23 09:58    Depth 69.9 km      OFFSHORE EL SALVADOR
Epicenter on top of the subduction zone. Moderately deep hypocenter = limited shaking

M 5.6      2010/09/23 05:28    Depth 171.1 km      RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA
Epicenter about 20 km from Semisopochnoi Island. Semisopochnoi Island is part of the Rat Islands group in the western Aleutian Islands. The island is uninhabited and provides an important nesting area for maritime birds.

M 5.0      2010/09/23 03:53    Depth 90.9 km      ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
Currently very active but harmless earthquake area

seismograph - recordingUseful information to read this daily earthquake list
This earthquake list covers minor and major earthquakes in the world.
If a more detailed page is present, the earthquake line will be linked to the detailed page.
For your comfort, we will provide in most cases Google Satellite Map links to give you an idea where the earthquake struck, which terrain it happened and if villages or cities are located in the immediate vicinity. The reference for the time zone is UTC (Coordinated Universal Time, also called GMT)
The page is regularly updated to add new earthquakes.
green color = NOT dangerous for damage or injuries
orange color = MODERATE risk for damage or injuries
red color = CONSIDERABLE risk for damage or injuries

QuakeSOS has been developed to help actively people who are caught in an earthquake + delivers "Earthquake Report" information on your iPhoneQuakeSOS is a FREE iPhone application developed by Armand Vervaeck, the creator and main contributor to Earthquake Report. The Application simplifies immediate group communication to friends and family members (with your exact GPS location) and is constantly feeding the users with “Earthquake Report” news. Together with your own family and friends, QuakeSOS will be your closest earthquake friend.

Tectonic plates near Papua New Guinea

The northward-migrating Solomon Sea Plate is subducted under the South Bismarck Plate.
The Solomon Sea Plate is also subducted beneath the Pacific Plate.
There are two short spreading centers, one at the southeast margin of the Solomon Sea Plate and the other at the north edge of the South Bismarck Plate.
As can be seen from the map below, the Woodlark Plate stretches under the North-Eastern Coast of Papua New Guinea. Powerful earthquakes and volcanoes result from the subduction of these plates.

Arrows show net plate motion relative to the Australian Plate.

Courtesy Oregon State University.
Read the full article  with multiple graphics here.

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