Magnitude 3.55 quake near Desert Center, CA

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 14 (+ 2) three component broadband seismograph stations centered near Anza, California (see map).

On Saturday, February 1st, 2003 at 17:26:47.292 we recorded a quake (preliminary ml 3.55) located near the city of Desert Center.

If you felt the quake, the USGS would like to know. Please add to the USGS "Did you feel it?" page.

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 71 km (0.64 degrees).

This map shows the mainshock (red star). Anza network stations are blue triangles.

Latitude	Longitude	Origin time (UTC)	Origin time (PST)	Depth	ml	Author
33.90	-115.78	2/01/03 (032) 17:26	2/01/03 (032) 09:26	5 km	3.55*	orbassoc

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

You may also view a plot showing:

Of local interest:

We operate a broadband station on Mt. Soledad. At 09:26 (PST) station SOL recorded the P wave from this event. Here is a view of that event as picked by our analyst. The red P indicates a P wave arrival, the 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 or the TRNET website for additional information about 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/2003/032/a/index.php [Last updated: 2018-03-26 17:50:56 UTC]