Magnitude 6.8 - KEPULAUAN MENTAWAI REGION, INDONESIA
2007 October 24 21:02:52 UTC
- This event has been reviewed by a seismologist.
|Depth||30 km (18.6 miles) set by location program|
|Region||KEPULAUAN MENTAWAI REGION, INDONESIA|
|Distances||140 km (85 miles) W of Bengkulu, Sumatra, Indonesia|
335 km (205 miles) SSE of Padang, Sumatra, Indonesia
385 km (240 miles) SW of Jambi, Sumatra, Indonesia
680 km (425 miles) WNW of JAKARTA, Java, Indonesia
|Location Uncertainty||horizontal +/- 13.2 km (8.2 miles); depth fixed by location program|
|Parameters||NST=163, Nph=163, Dmin=>999 km, Rmss=1.43 sec, Gp= 50°,|
M-type=centroid moment magnitude (Mw), Version=8
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The following is a release by the United States Geological Survey, National Earthquake Information Center: An earthquake occurred about 135 km (85 miles) W of Bengkulu or about 675 km (420 miles) WNW of JAKARTA at 3:02 PM MDT, Oct 24, 2007 (Oct 25 at 4:02 AM local time in Indonesia). The magnitude and location may be revised when additional data and further analysis results are available.
Felt (IV) at Argamakmur, Lais, Muaraaman and Mukomuko; (III) at Kapahiang. Also felt at Bengkulu, Jakarta and in Singapore.
The magnitude 6.8 southern Sumatra earthquake of October 24, 2007 indicates subduction related thrusting on the boundary between the Australian and Sunda plates. At the location of this earthquake, the Australian Plate moves northeast with respect to the Sunda plate at a velocity of approximately 60mm/yr. The October 24th event occurred within the rupture area of the magnitude 8.4 earthquake of September 12, 2007, which had similar fault slip. Since the September 12th earthquake, this section of the subduction zone has remained very active, producing more than 8 events greater than magnitude 6.0.
Scientific & Technical Information
The earthquake locations and magnitudes cited in NOAA tsunami statements and bulletins are preliminary and are superseded by USGS locations and magnitudes computed using more extensive data sets.
NOAA Tsunami Bulletins for this Earthquake
No Bulletins have been issued at this time.
General Tsunami Information
- Preliminary Earthquake Report
- U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver