ANF
USArray
Flexible Arrays
Home » Special Events » Magnitude 7.2 earthquake in the Andreanof Islands, Aleutian Islands, Alaska
last updated: 12/19/07 08:39.19 (PST)
On Wednesday December 19 2007 at 1:30 AM (PST) the USArray seismic network recorded an earthquake (preliminary Mw 7.2) located in the Andreanof Islands, Aleutian Islands, Alaska.
Initial source parameters for this tremor are indicated below. The epicentral distance (i.e. distance separating the epicenter and the closest station in the recording network, C03A) for the USArray is 3886 km (34.97 degrees).
If you felt the quake, the USGS would like to know. Please add your comments to the USGS page "Did you feel it?".
Location Maps
The red star denotes the earthquake epicenter. Triangle symbols are active stations at the time of the earthquake in the USArray (excluding ANSS backbone stations, which are represented by a diamond symbol) and colored by network. Gray lines are major rivers.
Global View:
Regional View:
| Transportable Array (TA) | |
| UC San Diego (AZ) | |
| CalTech (CI) | |
| UN Reno (NN) | |
| Uni. Utah (UU) | |
| ANSS backbone stations (US) |
Solution Parameters
| Solution Parameters | |
|---|---|
| Local Date: | Wednesday December 19, 2007 |
| Local Time: | 1:30 AM PST |
| Universal Time: | 12/19/07 (353) 09:30.31 UTC |
| Magnitude: | 7.2 Mw |
| Latitude: | 51.4950 |
| Longitude: | -179.4730 |
| Depth: | 56 km |
| Author: | QED |
| Authoritative: | yes |
Waveforms
You may view plots showing this event as recorded by USArray instruments:
- Vertical components from every eighth USArray station that recorded the event across the whole network
- 3 components recorded by the closest USArray station to the event
Proximity to Population Centers
- 200 km (124 miles) W (259°) from Adak, AK
- 370 km (230 miles) W (260°) from Atka, AK
- 2098 km (1304 miles) WSW (253°) from Anchorage, AK
News Links
- USGS page for this event
- Bloomberg: "Alaska's Aleutian Islands Hit by Magnitude 7.2 Quake"
- Associated Press: "Large Quake Shakes Aleutian Islands"
Search the internet
To search the internet for more information about this event, click on the button below:
Current seismic activity measured by USArray
Click the links below to observe near real time maps of earthquakes recorded by the USArray deployment:
Further information
Learn more about the Array Network Facility (ANF) component of USArray, the USArray experiment, the EarthScope project, and the Incorporated Research Institutions for Seismology (IRIS).
