Magnitude 6.4 quake in the Bougainville region, Papua New Guinea

Last updated: 2018-03-26 (84) 17:50:55 UTC

Global view of quake

 

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 Friday August 20 2010 at 10:56 AM (PDT) we recorded an earthquake (preliminary Mwp 6.4) located in the Bougainville region, Papua New Guinea.

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

Initial source parameters for this tremor are indicated below. The epicentral distance (i.e. the distance separating the epicenter and the closest station in the recording network) for Anza is 10298 km (92.52 degrees).

This map shows the mainshock as a red star. Associated aftershocks are orange stars. Anza network stations are yellow triangles. Blue lines are major rivers. Thin black lines are state boundaries and thick black lines are national boundaries.

Event Map

Global mecator event map

Event Parameters

Latitude Longitude Origin time (UTC) Origin time (PDT) Depth (km) ml Author
-6.5590 154.0880 08/20/10 (232) 17:56.19 08/20/10 (232) 10:56 AM 51 6.4 Mwp 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 at Piñon Flats Observatory. At 11:09 (PDT) station PFO 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 (data is 0.01–0.07 Band Pass filtered).

3 component seismometer recordings at Piñon Flats Observatory

View a larger image showing the waveforms recorded at Piñon Flats Observatory.

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

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