Magnitude 5.4 KEPULAUAN BARAT DAYA, INDONESIA
Friday, April 17, 2009 at 04:09:59 UTC
Preliminary Earthquake Report
Magnitude | 5.4 |
---|---|
Date-Time |
Time of Earthquake in other Time Zones |
Location | 7.42S 128.24E |
Depth | 144 kilometers |
Region | KEPULAUAN BARAT DAYA, INDONESIA |
Distances |
320 km (200 miles) ENE of DILI, East Timor 350 km (215 miles) W of Saumlaki, Tanimbar Islands, Indonesia 415 km (255 miles) S of Ambon, Moluccas, Indonesia 625 km (390 miles) NNW of DARWIN, Northern Territory, Australia |
Location Uncertainty | Error estimate: horizontal +/- 4.8 km; depth +/- 7.5 km |
Parameters | Nst=300, Nph=300, Dmin=975.6 km, Rmss=0.78 sec, Erho=4.8 km, Erzz=7.5 km, Gp=20.4 degrees |
Source | USGS NEIC (WDCS-D) |
Event ID | usfnaj |
NB:
The official magnitude for this earthquake is indicated at the top of this page.
This was the best available estimate of the earthquake's size,
at the time that this page was created. Other magnitudes associated
with web pages linked from here are those determined at various times
following the earthquake with different types of seismic data.
Although, given the data used, they are legitimate estimates of magnitude
they are not considered the official magnitude.
The region name is an automatically generated name
from the Flinn-Engdahl (F-E) seismic and geographical regionalization scheme.
The boundaries of
these regions are defined at one-degree intervals and therefore differ from
irregular political boundaries.
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Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver