Magnitude 3.7 quake near San Jacinto, California

Last updated: 2018-03-26 (84) 17:50:57 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 Tuesday September 2 2014 at 7:38 PM (PDT) we recorded an earthquake (preliminary ml 3.7) located near San Jacinto.

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

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 1 km (0.01 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

Event Parameters

Latitude	Longitude	Origin time (UTC)	Origin time (PDT)	Depth (km)	ml	Author
33.7992	-116.9665	09/03/14 (246) 02:38:35	09/02/14 (245) 7:38 PM	13	3.7	UCSD:mabibbins

* 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 the Santa Margarita Ecological Reserve. At 19:38 (PDT) station SMER 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 the Santa Margarita Ecological Reserve

View a larger image showing the waveforms recorded at the Santa Margarita Ecological Reserve.

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).