Magnitude 4.6 BONIN ISLANDS, JAPAN REGION
Saturday, November 13, 2004 at 13:43:35 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
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Magnitude
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4.6
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Date-Time
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Saturday, November 13, 2004 at 13:43:35 (UTC) - Coordinated Universal Time
Saturday, November 13, 2004 at 11:43:35 PM local time at epicenter
Time of Earthquake in other Time Zones
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Location
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27.68N 139.89E
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Depth
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493.4 kilometers
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Region
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BONIN ISLANDS, JAPAN REGION
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Reference
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240 km (150 miles) WNW of Chichi-shima, Bonin Islands, Japan
350 km (220 miles) NNW of Iwo-jima, Volcano Islands, Japan
885 km (550 miles) S of TOKYO, Japan
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Location Quality
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Error estimate: horizontal +/- 61.1 km; depth +/- 31.7 km
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Location Quality Parameters
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Nst=25, Nph=25, Dmin=994.5 km, Rmss=0.93 sec, Erho=61.1 km, Erzz=31.7 km, Gp=252.8 degrees
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Source
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USGS NEIC (WDCS-D)
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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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