ANF
USArray
Flexible Arrays
Home » Special Events » Magnitude 8.0 earthquake in the Kepulauan Mentawai Region, Sumatra, Indonesia
last updated: 09/12/07 19:24.40 (PDT)
On Wednesday September 12 2007 at 4:49 PM (PDT) the USArray seismic network recorded an earthquake (preliminary Mw 8.0) located in the Kepulauan Mentawai Region, Sumatra.
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 13420 km (120.61 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) | |
| UC Berkeley (BK) | |
| CalTech (CI) | |
| UN Reno (NN) | |
| Uni. Utah (UU) | |
| ANSS backbone stations (US) |
Solution Parameters
| Solution Parameters | |
|---|---|
| Local Date: | Wednesday September 12, 2007 |
| Local Time: | 4:49 PM PST |
| Universal Time: | 09/12/07 (255) 23:49.06 UTC |
| Magnitude: | 8.0 Mw |
| Latitude: | -2.9150 |
| Longitude: | 100.7940 |
| Depth: | 33 km |
| Author: | QED |
| Authoritative: | yes |
Waveforms
You may view plots showing this event as recorded by USArray instruments:
- Vertical components from the closest fifty USArray stations that recorded the event
- 3 components recorded by the closest USArray station to the event
Virtual 3-D Model
To download and view this interactive 3-D model, please visit the SIO Viz Center web page.
Proximity to Population Centers
- 185 km (115 miles) SSE of Padang, Sumatra, Indonesia
- 200 km (125 miles) NW of Bengkulu, Sumatra, Indonesia
- 530 km (330 miles) SW of Singapore
- 755 km (470 miles) WNW of Jakarta, Java, Indonesia
News Links
- USGS page for this event
- BBC News: "Powerful aftershocks hit Sumatra"
- New York Times: "Second Powerful Quake Hits Indonesia"
- CNN.com: " New quake rattles Indonesia"
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).
