Magnitude 6.2 quake near San Jose, Costa Rica

Last updated: 2018-03-26 17:50:55 UTC

Quick Links

Translations

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 Saturday, November 20th, 2004 at 12:07 AM (PST) we recorded a quake (preliminary Mw 6.2 ) located near San Jose. Images of the aftermath can be seen at Nacion.com, the Costa Rica daily newspaper.

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 4194 km (37.69 degrees).

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

Event Map

Global mecator event map

Event Parameters

Latitude	Longitude	Origin time (UTC)	Origin time (PDT)	Depth (km)	Mw	Author
9.5520	-84.2230	11/20/04 (325) 08:07	11/20/04 (325) 0:07	25	6.2	QED_weekly

* 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 00:14 (PST) station SOL 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 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.

News Links

Search the Internet

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/2004/325/a/index.php [Last updated: 2018-03-26 17:50:55 UTC]