Magnitude 6.6 quake near the west coast of Honshu, Japan
Last updated: 2015-10-22 22:34:38 UTC
- Location map
- Initial source parameters
- 3 components [closest Anza station]
- Vertical components [all Anza stations]
- Waveforms recorded at Mt. Soledad
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, October 23rd, 2004 at 1:56 AM (PDT) we recorded a quake (preliminary Mw 6.6) located near th west coast of Honshu, Japan.
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 8929 km (80.29 degrees).
This map shows the mainshock (red star) and any associated aftershocks (orange stars). Anza network stations are yellow triangles.
|Latitude||Longitude||Origin time (UTC)||Origin time (PDT)||Depth (km)||Mw||Author|
|37.229||138.773||10/23/04 (297) 8:56 AM||10/23/04 (297) 1:56 AM||16||6.6||USGS|
|37.321||138.828||10/23/04 (297) 9:03 AM||10/23/04 (297) 2:03 AM||10||6.0||USGS|
|37.198||138.692||10/23/04 (297) 9:11 AM||10/23/04 (297) 2:11 AM||10||5.7||USGS|
|37.280||138.787||10/23/04 (297) 9:34 AM||10/23/04 (297) 2:34 AM||22||6.3||USGS|
|37.214||138.602||10/23/04 (297) 10:37 AM||10/23/04 (297) 3:37 AM||15||5.5||USGS|
|37.300||138.608||10/23/04 (297) 10:45 AM||10/23/04 (297) 3:45 AM||14||5.9||USGS|
|37.264||138.665||10/23/04 (297) 2:35 PM||10/23/04 (297) 7:35 AM||20||5.2||USGS|
|37.233||138.669||10/24/04 (298) 5:22 AM||10/23/04 (297) 10:22 PM||10||5.1||USGS|
|37.197||138.620||10/24/04 (298) 3:28 PM||10/24/04 (298) 8:28 AM||10||5.3||USGS|
|37.308||138.621||10/24/04 (298) 9:05 PM||10/24/04 (298) 2:05 PM||17||5.7||USGS|
* 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 02:08 (PDT) 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.
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).
URL: http://eqinfo.ucsd.edu/special_events/2004/297/a/index.php [Last updated: 2015-10-22 22:34:38 UTC]