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World » Magnitude 8.0 - NEAR THE COAST OF CENTRAL PERU

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Magnitude 8.0 - NEAR THE COAST OF CENTRAL PERU

2007 August 15 23:40:57 UTC

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Earthquake Details

Magnitude

8.0

Date-Time

Wednesday, August 15, 2007 at 23:40:57 UTC

Wednesday, August 15, 2007 at 06:40:57 PM at epicenter

Time of Earthquake in other Time Zones

Location

13.353°S, 76.510°W

Depth

39 km (24.2 miles) set by location program

Region

NEAR THE COAST OF CENTRAL PERU

Distances

40 km (25 miles) WNW of
Chincha Alta, Peru
105 km (65 miles) NW of Ica,
Peru
150 km (95 miles) SSE of LIMA, Peru
200 km (125
miles) SW of Huancayo, Peru

Location
Uncertainty

horizontal +/- 5.2 km (3.2 miles); depth fixed by location
program

Parameters

Nst=271, Nph=271, Dmin=155.1 km, Rmss=0.84 sec, Gp=
29°,
M-type=moment magnitude (Mw), Version=9

Source

USGS NEIC
(WDCS-D)

Event
ID

us2007gbcv

This event has been reviewed by a seismologist.

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Earthquake Summary

Earthquake
Summary Poster

The following is a release by the United States Geological Survey, National
Earthquake Information Center: An earthquake occurred NEAR THE COAST OF CENTRAL
PERU, about 45 km (25 miles) west-northwest of Chincha Alta or about 145 km (90
miles) south-southeast of Lima at 5:40 PM MDT, Aug 15, 2007 (6:40 PM local time
in Peru).

Felt Reports

At least 400 people killed and 1500 injured in the Ica-Lima-Pisco area.
Extensive damage at Chincha Alta, Ica and Pisco. Widespread communications and
power outages ocurred in the area. Relief efforts were hindered by cracks in the
Panamerican Highway.

Tectonic Summary

This earthquake occurred at the boundary between the Nazca and South American
tectonic plates. The two plates are converging at a rate of 77 mm per year. The
earthquake occurred as thrust-faulting on the interface between the two plates,
with the South American plate moving up and seaward over the Nazca plate.

Coastal Peru has a history of very large earthquakes. The August 15 shock
originated just south of the source region of the magnitude 8.1 earthquake of
October 1974 and just north of the source regions of major earthquakes that
occurred in August 1942 (magnitude 7.7) and 1996 (magnitude 7.7). The largest
coastal Peru earthquake of the last two centuries was the magnitude 9 earthquake
of 1868, which was centered about 700 km southeast of the August 15 earthquake.
The 1868 shock produced a tsunami that killed several thousand people along the
South American coast and also caused damage in Hawaii.

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Page Last Modified: August 17, 2007 5:32:53 PM.