Magnitude 6.7 quake in the Kepulauan Mentawai Region, Indonesia

Last updated: 2018-03-26 17:50:59 UTC

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The Anza group at the University of California San Diego operates a broadband seismograph network consisting of 17 three component broadband seismograph stations centered near Anza, California (see map).

On Sunday, April 10, 2005 at 3:29 AM (PDT) we recorded a quake (preliminary Mw 6.7) located in the Kepulauan Mentawai Region, Indonesia.

View the most recent map of local events near San Diego or a slightly wider regional view of events recoded by ANZA, or a map of events recoded by ANZA from around the globe.

Initial source parameters for the recent event are shown below. The epicentral distance (distance separating the epicenter and the closest station in the recording network) for Anza is 14830 km (133.25 degrees).

This map shows the mainshock (red star) and any associated aftershocks (orange stars). Anza network stations are yellow triangles.

Event Map

Global mecator event map

Regional Event Map

The map below shows the surounding geopolitical region around the epicenter of the earthquake. The two previous large earthquakes in the region (Mw 9.0 and Mw. 8.7) are represented by dark red stars.

Regional event map

Event Parameters

Latitude	Longitude	Origin time (UTC)	Origin time (PDT)	Depth (km)	Mw	Author
-1.6200	99.5600	04/10/05 (100) 10:29.13	04/10/05 (100) 3:29 AM	30	6.7	QED

* The location and magnitude determined for this event are preliminary and are subject to change upon further review of seismic data.

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Of local interest:

We operate a broadband station on Mt. Soledad. At (no arrival time recorded) station SOL recorded the P wave from this event. Here is a view of that event as picked by our analyst. A red P indicates a P wave arrival, a red S indicates an S wave arrival.

3 component seismometer recordings at Soledad

View a larger image showing the waveforms recorded at Mt. Soledad.

Visit the IRIS website with additional links to seismic data for this event.

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Learn more about the Anza group (including who works here, other networks, nuclear tests in China/India/Pakistan).
Learn more about the ANZA network (includes more station information, research, etc).

URL: http://eqinfo.ucsd.edu/special_events/2005/100/a/index.php [Last updated: 2018-03-26 17:50:59 UTC]