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Magnitude 5.5 - NEAR THE EAST COAST OF
HONSHU, JAPAN
2005 August 7 15:06:45
UTC
Preliminary Earthquake
Report
U.S. Geological Survey, National Earthquake
Information Center
World Data
Center for Seismology, Denver

A moderate earthquake occurred at
15:06:45 (UTC) on Sunday, August 7, 2005. The magnitude 5.5
event has been located in NEAR THE EAST COAST OF HONSHU,
JAPAN. (This event has been reviewed by a seismologist.)

Magnitude

5.5

Date-Time

Sunday, August 7, 2005 at
15:06:45 (UTC)
= Coordinated Universal Time

Monday, August 8, 2005 at 12:06:45 AM
=
local time at epicenter
Time of Earthquake in other
Time Zones

Location

36.327°N,
141.383°E

Depth

37.7 km (23.4
miles) set by location program

Region

NEAR THE
EAST COAST OF HONSHU, JAPAN

Distances

80
km (50 miles) E of Mito, Honshu, Japan
95 km
(60 miles) SSE of Iwaki, Honshu, Japan
165 km
(100 miles) ENE of TOKYO, Japan
175 km (110
miles) SSE of Fukushima, Honshu,
Japan

Location
Uncertainty

horizontal +/-
4.6 km (2.9 miles); depth fixed by location
program

Parameters

Nst=185,
Nph=185, Dmin=285.8 km, Rmss=0.67 sec,
Gp=122°,
M-type=teleseismic moment magnitude (Mw),
Version=R

Source

USGS
NEIC (WDCS-D)

Event ID

usbla6

Felt
Reports

Felt
in Chiba, Fukushima, Ibaraki and Tochigi Prefectures.
Felt lightly at Tokyo. Recorded (3 JMA) in Chiba,
Fukushima, Ibaraki and Tochigi; Gumma, Saitama, Tokyo,
Yamagata and Yamanashi; (1 JMA) in Akita, Aomori, Iwate,
Kanagawa, Nagano and Shizuoka Prefectures.

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For more information, go to http://neic.usgs.gov/ || Contacts

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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.

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Last modification: 11
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