Siempre tenemos que recordar que lo unico que nos puede librar de correr la misma suert es la misericordia divina.
Debemos de orar por un mundo que ha olvidado hacerlo por si mismo.
Magnitude 7.6 - SOUTHERN SUMATRA, INDONESIA
2009 September 30 10:16:09 UTC
|Depth||80 km (49.7 miles) set by location program|
|Region||SOUTHERN SUMATRA, INDONESIA|
|Distances||45 km (30 miles) WNW of Padang, Sumatra, Indonesia |
220 km (135 miles) SW of Pekanbaru, Sumatra, Indonesia
475 km (295 miles) SSW of KUALA LUMPUR, Malaysia
960 km (590 miles) NW of JAKARTA, Java, Indonesia
|Location Uncertainty||horizontal +/- 8.9 km (5.5 miles); depth fixed by location program|
|Parameters||NST= 42, Nph= 42, Dmin=521.5 km, Rmss=1.28 sec, Gp= 47°, |
M-type=teleseismic moment magnitude (Mw), Version=8
- This event has been reviewed by a seismologist.
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The magnitude 7.6 southern Sumatra earthquake of September 30, 2009 occurred as a result of oblique-thrust faulting near the subduction interface plate 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 65 mm/yr.
On the basis of the currently available fault mechanism information and earthquake depth of 80 km, it is likely that this earthquake occurred within the subducting Australian Plate rather than on the plate interface itself. The recent earthquake was deeper than typical subduction thrust earthquakes that generally occur at depths less than 50 km.
The subduction zone surrounding the immediate region of this event has not witnessed a megathrust earthquake in the recent past, rupturing last in an earthquake of M 8.5 or larger in 1797. Approximately 350 km to the south, a 250 km section of the plate boundary slipped during an Mw 8.4 earthquake in September 2007, while approximately 300 km to the north, a 350 km section slipped during the Mw 8.7 earthquake of March 2005. In early 2008, the plate boundary updip of today’s earthquake was active in a sequence of Mw 5-6 earthquakes. It is not clear how today’s earthquake is related to the sequence of megathrust subduction zone events on the shallower section of the plate boundary.
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The earthquake locations and magnitudes cited in these NOAA tsunami bulletins are very preliminary and may be superceded by USGS locations and magnitudes computed using more extensive data sets.
Scientific & Technical Information
- USGS Centroid Moment Tensor Solution
- Global CMT Project Moment Tensor Solution
- USGS Body-Wave Moment Tensor Solution
- USGS WPhase Moment Tensor Solution
- Historic Moment Tensor Solutions
- Finite Fault Model
- Phase Data
- Seismicity Cross Section
- Theoretical P-Wave Travel Times
- Energy and Broadband Solution
- Subduction Zone Geometry Analysis
Additional Information, News Reports
- Preliminary Earthquake Report
- U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver