Very strong earthquake close to Sand Point, Alaska, United States

Last update: February 2, 2011 at 1:48 am by By

Sand Point Alaska - image Panoramio by Horse335 - http://www.panoramio.com/photo/23726600

UPDATE 01:39 UTC : Live seismogram at College, Alaska.  P and S waves are clearly visible.

UPDATE 01:33 UTC : Based on the limited values of the Felt reports, earthquake-report.com has lowered the alert color from orange to GREEN = very limited chance on damage or injuries

UPDATE 01:24 UTC : According the theoretical calculations of USGS a MMI of V to VI might have been experienced in Sand Point. People in Sand Point did report a max. value of IV so far.
Based on the USGS pager information, 1,000 people would endure a V MMi and another 1,000 a IV MMI.
People in Cold Bay, did report a II MMI.

UPDATE 01:21 UTC : 3-dimensional view of the earthquake area (USGS epicenter location)

UPDATE 01:15 UTC : NOAA report just published : The magnitude is such that a tsunami IS NOT EXPECTED. However, in coastal areas of intense shaking, locally generated tsunamis can be triggered by underwater landslides. This will be the only WCATWC message issued for this event.

UPDATE 01:11 UTC : Good news coming from Sand Point – All Felt signals so far have only a IV MMI value = light shaking

UPDATE 01:09 UTC : EMSC publishes a preliminary magnitude of 6.3 at a dpth of 40 km.

Original text
A very strong earthquake occurred during the afternoon near Sand Point Alaska.
Sand Point has a population of 852 people during the latest census.
GDACS published a GREEN earthquake alert for this earthquake = very limited chance on damage and/or injuries

Most important Earthquake Data:
Magnitude : Mw 5.9
UTC time : Wednesday, February 02, 2011 at 00:38:17 UTC
Local time at epicenter : Tuesday, February 01, 2011 at 03:38:17 PM at epicenter
Depth (Hypocenter) : 35 km
Quake-maps.com satellite map + I Did Feel It form
Geo-location(s) :
40 km (25 miles) S (174°) from Sand Point, AK
119 km (74 miles) SSW (210°) from Ivanof Bay, AK

Links to important maps
Quake-maps.com satellite map + I Did Feel It form
USGS Did You Feel It map

Alternative satellite map

USGS Shaking map

USGS historic earthquakes map

USGS impact on population map
Live Seismogram (College, Alaska)

USGS Seismic hazard map
GDACS Green Earthquake Alert (Global Disaster Alert and Coordination System)

NOAA Tsunami report

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