Magnitude 4.9 SOUTH OF ALEUTIAN ISLANDS
Sunday, April 26, 2009 at 00:38:28 UTC
Preliminary Earthquake Report
Magnitude | 4.9 |
---|---|
Date-Time |
Time of Earthquake in other Time Zones |
Location | 52.47N 165.39W |
Depth | 35 kilometers |
Region | SOUTH OF ALEUTIAN ISLANDS |
Distances |
180 km (110 miles) SSE of Dutch Harbor, Alaska 185 km (115 miles) S of Akutan, Alaska 1350 km (840 miles) SW of Anchorage, Alaska 2055 km (1270 miles) W of JUNEAU, Alaska |
Location Uncertainty | Error estimate: horizontal +/- 4.1 km; depth fixed by location program |
Parameters | Nst=219, Nph=219, Dmin=170.0 km, Rmss=1.00 sec, Erho=4.1 km, Erzz=0 km, Gp=170.7 degrees |
Source | USGS NEIC (WDCS-D) |
Event ID | usfxae |
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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
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Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver