Special Event Detail
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Magnitude 6.7 quake in the Samoa Islands Region
last updated: 09/28/06 10:07.38 (PDT)
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 Wednesday September 27 2006 at 11:22 PM (PDT) we recorded an earthquake (preliminary Mw 6.7) located in the Samoa Islands region.
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 recoded 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 7991 km (71.79 degrees).
This map shows the mainshock as a red star.
Associated aftershocks are orange stars.
Anza network stations are yellow triangles.
Gray lines are major roads and red lines are faults.
Event Map
Event Parameters
* 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 at Santa Margarita Ecological Reserve.
At 23:33 (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.
View a larger image showing the waveforms recorded at 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).
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