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Two M>8 earthquakes (15/11/2006 and 13/01/2007) in Kurils Islands within less than 60 days and less than 100 km

Two distinct focal mechanisms ! Two distinct aftershocks distribution patterns !

 

Two large events (Mw 8.3 and Mw 8.2) distant of less than 100 km occurred in the Kurils Islands within less than 60 days (on 15/11/2006 at 11:14 GMT and on 13/01/2007 at 04:23 GMT).

The 2 events present :

 

Mw 8.2 on 13/01/2007

Aftershocks distribution
Events distribution since 15/11/2006

Main shock

Information about the tsunami

For more information about the tsunami that has been generated by this event, see :
Comparison of aftershocks distribution
Time and magnitude distribution of aftershocks of the 15/11/2006 event
Comparison of aftershocks distribution
Time and magnitude distribution of aftershocks of the 13/01/2007 event

 

 

Mw 8.3 on 15/11/2006

From 15/11 to 20/11, the EMSC recorded more than 134 aftershocks of magnitude greater than 4.0, 79 with M>5 (see day by day distribution). The aftershocks are mainly distributed North-East of the Main shock on a distance of about 300 km (see Figure below).

An earthquake sequence has been observed in the same region from 26/09 to 04/10/2006 (6-7 weeks before the main shock).

 

Main shock

Aftershocks distribution

Seismic activity in the Kurils Islands from 26/09 to 04/10/2006 (6-7 weeks before the main shock)

  • List

  • Aftershocks location
    Events distribution from 26/09 to 04/10/2006

Information about the tsunami

For more information about the tsunami that has been generated by this event, see :

The effects of this earthquake were a surprise at the Crescent City Harbor (California) on 15/11/2006 afternoon, after a surge wave caused "extensive damage," according to the California Office of Emergency Services. An OES alert said the 6-foot surge wave at Crescent City came in at around 30 mph. Visit the University of Southern California web site for more information.