Magnitude 4.4 HALMAHERA, INDONESIA
Saturday, April 25, 2009 at 18:41:07 UTC
Preliminary Earthquake Report
Magnitude | 4.4 |
---|---|
Date-Time |
Time of Earthquake in other Time Zones |
Location | 2.56N 128.32E |
Depth | 171 kilometers |
Region | HALMAHERA, INDONESIA |
Distances |
220 km (140 miles) NNE of Ternate, Moluccas, Indonesia 405 km (250 miles) ENE of Manado, Sulawesi, Indonesia 1560 km (970 miles) SSE of MANILA, Philippines 2580 km (1600 miles) ENE of JAKARTA, Java, Indonesia |
Location Uncertainty | Error estimate: horizontal +/- 11.1 km; depth fixed by location program |
Parameters | Nst=41, Nph=45, Dmin=1267.9 km, Rmss=0.90 sec, Erho=11.1 km, Erzz=0 km, Gp=114.3 degrees |
Source | USGS NEIC (WDCS-D) |
Event ID | usfwbm |
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Earthquakes: Frequently Asked Questions
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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