M 8.1 - SAMOA ISLANDS REGION - 2009-09-29 17:48 UTC

Why is your contribution important?

Your observations can help improve earthquake response and also contribute to scientific knowledge. Observations (including questionnaires, pictures, etc.) can provide valuable in-situ constraints on earthquake effects and, in the long term, improve the performance of our models of earthquake impact.

Magnitude Mw 8.1 Region SAMOA ISLANDS REGION Date time 2009-09-29 17:48:11.2 UTC Location 15.42 S ; 172.13 W Depth 10 km Distances 1048 km E Suva (pop 199,455 ; local time 05:48 2009-09-30) 181 km S Apia (pop 40,407 ; local time 06:48 2009-09-29) 160 km S Siumu (pop 1,117 ; local time 06:48 2009-09-29)

Source parameters reviewed by a seismologist

More information at:  USGS/NEIC Denver, USA

Earthquake View	Google Maps View	Intensity Map	Contribution Map
Seismicity	Regional Moment tensors	Quick MT solutions	PGA/PGV/Population

Global view	Regional view	Local view

References for tectonic plate boundaries:
Bird, P. (2003) An updated digital model of plate boundaries,
Geochemistry Geophysics Geosystems, 4(3), 1027.

Maps view: Seismicity from the previous 7 days in the area .

 Regional instrumental seismicity

This seismicity maps have been generated by concatenating the ISC catalogue (since 1964), the EMSC Euro-Med Bulletin catalogue and the EMSC Real Time catalogue. Therefore, they show the seismicity from 1964 until the earthquake occurrence.

Intensity map created with the results of the macroseismic questionnaires (click the map to enlarge).If you have experienced this event, please report it by filling our online questionnaire.

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