Magnitude 4.9 ROTA REGION, NORTHERN MARIANA ISLANDS
Monday, October 25, 2004 at 12:43:26 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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4.9
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Date-Time
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Monday, October 25, 2004 at 12:43:26 (UTC) - Coordinated Universal Time
Monday, October 25, 2004 at 10:43:26 PM local time at epicenter
Time of Earthquake in other Time Zones
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Location
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14.11N 145.53E
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Depth
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90 kilometers
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Region
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ROTA REGION, NORTHERN MARIANA ISLANDS
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Reference
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35 km (20 miles) E of Rota, Northern Mariana Islands
110 km (70 miles) NE of HAGATNA, Guam
120 km (75 miles) S of SAIPAN, Northern Mariana Islands
250 km (155 miles) S of Anatahan, Northern Mariana Islands
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Location Quality
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Error estimate: horizontal +/- 9.9 km; depth fixed by location program
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Location Quality Parameters
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Nst=51, Nph=51, Dmin=92.2 km, Rmss=0.87 sec, Erho=9.9 km, Erzz=0 km, Gp=131.2 degrees
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Source
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USGS NEIC (WDCS-D)
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Remarks
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Felt at Garapan, Saipan and Tamuning, Guam.
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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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