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  Deep Ocean Seismicity from Hydroacoustic Monitoring
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  Seismic Activity - NE Pacific Quarterly Maps  
 

 
 

Latest seismicity map
Latest processed quarterly map
(click to enlarge)

Other NE Pacific Seismicity:

 

Earthquake location maps for the NE Pacific have been accumulated since August 29, 1991. The source location fixes are based on bearing and arrival time information at 3 to 11 SOSUS hydrophone sites. Source levels are estimated from received amplitudes and a simple transmission loss model.

Recent activity:
Gorda-Blanco-Southern Juan de Fuca, July 2007
Gorda Ridge, NE Pacific, March 2005
Endeavour Ridge, NE Pacific, February 2005
Endeavour Ridge, October 2004
Cobb Offset, May 2004
West Valley, July 2003

Maps:

Quick-view (10K):
Full-size (150+K):

Earthquake data files:

Text files (15-150K):

Earthquake locations for the NE Pacific are currently being processed from archived data and made available as each quarter is completed. The data is monitored in real-time for any current seismic events.

 
         
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