Magnitude 4.7 BONIN ISLANDS, JAPAN REGION
Monday, August 18, 2008 at 05:14:52 UTC
Preliminary Earthquake Report
Magnitude | 4.7 |
---|---|
Date-Time |
Time of Earthquake in other Time Zones |
Location | 26.06N 142.56E |
Depth | 10 kilometers |
Region | BONIN ISLANDS, JAPAN REGION |
Distances |
120 km (75 miles) SSE of Chichi-shima, Bonin Islands, Japan 190 km (120 miles) NE of Iwo-jima, Volcano Islands, Japan 1095 km (680 miles) SSE of TOKYO, Japan |
Location Uncertainty | Error estimate: horizontal +/- 11.8 km; depth fixed by location program |
Parameters | Nst=24, Nph=24, Dmin=1231.2 km, Rmss=0.65 sec, Erho=11.8 km, Erzz=0 km, Gp=137.9 degrees |
Source | USGS NEIC (WDCS-D) |
Event ID | usvwat |
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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