Magnitude 7.50 quake in the Scotia Sea, South Atlantic

Last updated: 2018-03-26 17:50:56 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, August 3rd, 2003 at 21:37:19 (PDT) we recorded a quake (preliminary mb 7.50) located in the Scotia Sea in the South Atlantic.

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 12335 km (110.8 degrees).

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

Global mecator event map

Latitude	Longitude	Origin time (UTC)	Origin time (PDT)	Depth (km)	mb	Author
-60.5500	-43.4700	08/04/03 (216) 04:37:19	08/03/03 (215) 21:37:19	10	7.50	UCSD:vladik

You may also view a plot showing

Of local interest:
We operate a broadband station on Mt. Soledad. At 21:51:55 (PDT) station SOL recorded the P wave from this event. Here is a view of that event as picked by our analyst. The pink "P" indicates a P 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.

To search the internet for more information about this event, click on the button below:

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/2003/216/a/index.php [Last updated: 2018-03-26 17:50:56 UTC]