Magnitude 3.04 quake near the Northern Imperial Valley, CA

Last updated: 2018-03-26 17:50:58 UTC

The Anza group at the University of California San Diego operates a broadband seismograph network consisting of 13 (+ 2) three component broadband seismograph stations centered near Anza, California (see map).

On Thursday, September 19th, 2002 at 08:59 (PDT) we recorded a quake (preliminary ml 3.04) located near the Northern Imperial Valley.

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, a bulletin of recent events recorded by the Anza network.

Initial source parameters for the recent event and aftershocks are shown below. The epicentral distance (distance separating the epicenter and the closest station in the recording network) for Anza is 0.598 degrees (66.49461 km).

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

Global mecator event map
Latitude Longitude Origin time (UTC) Depth ml Author
33.1687 -115.6400 9/19/02 (262) 08:59:54.494 19.6555 3.04* UCSD:vladik

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

You may also view a plot showing

Download data: css3.0 miniSEED data for Anza

Of local interest:

We operate a broadband station on Mt. Soledad. At 08:59 (PDT) station SOL recorded the P wave from this event.

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

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: [Last updated: 2018-03-26 17:50:58 UTC]