Magnitude 3.9 OFF COAST OF OREGON
Friday, April 10, 2009 at 06:37:20 UTC
Preliminary Earthquake Report
Magnitude | 3.9 |
---|---|
Date-Time |
Time of Earthquake in other Time Zones |
Location | 44.37N 129.27W |
Depth | 10 kilometers |
Region | OFF COAST OF OREGON |
Distances |
415 km (260 miles) W of Newport, Oregon 420 km (260 miles) WNW of Coos Bay, Oregon 475 km (295 miles) WSW of Astoria, Oregon 500 km (310 miles) W of SALEM, Oregon |
Location Uncertainty | Error estimate: horizontal +/- 11.8 km; depth fixed by location program |
Parameters | Nst=71, Nph=71, Dmin=475.6 km, Rmss=1.36 sec, Erho=11.8 km, Erzz=0 km, Gp=192.2 degrees |
Source | USGS NEIC (WDCS-D) |
Event ID | usfgar |
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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