Magnitude 6.1 Mwp quake near Tonga, South Pacific Ocean
Last updated: 2018-03-26 (84) 17:50:55 UTC
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- Location map
- Initial source parameters
- Vertical components [all Anza stations] (filtered at 0.01-0.07 BP)
- Waveforms recorded at Mt. Soledad (filtered at 0.01-0.07 BP)
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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 Saturday September 4 2010 at 1:52 AM (PDT) we recorded an earthquake (preliminary 6.1 Mwp) located near Tonga.
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 8105 km (72.81 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) | Mwp | Author |
|---|---|---|---|---|---|---|
| -17.2700 | -174.0000 | 09/04/10 (247) 08:52.01 | 09/04/10 (247) 1:52 AM | 37 | 6.1 | QED |
* 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
- the vertical components for all Anza stations (filtered at 0.01-0.07 BP)
- View waveforms from Anza stations: BZN CPE CRY FRD HWB KNW LVA2 MONP2 PFO RDM SCI2 SMER SND SOL TRO WMC
Of local interest
We operate a broadband station on Mt. Soledad. At 02:03 (PDT) station SOL recorded the P wave from this event. Here is a view of that event as picked by our analyst (filtered at 0.01-0.07 BP). 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 Mt. Soledad (filtered at 0.01-0.07 BP).
Visit the IRIS website with additional links to seismic data for this event.
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![Vertical components [all Anza stations] (filtered at 0.01-0.07 BP)](Anza_verts.gif){kind=link}
