Samoan Islands quake tsunami risk

Samoan Islands quake tsunami risk

2009 September 29 17:48:11 UTC

WASHINGTON (Reuters) – A tsunami warning was issued for New Zealand and other small Pacific islands after a major 7.9 magnitude quake struck in the ocean off American Samoa, U.S. government agencies said on Tuesday.

Earthquake Details

Magnitude 8.0
Date-Time
  • Tuesday, September 29, 2009 at 17:48:11 UTC
  • Tuesday, September 29, 2009 at 06:48:11 AM at epicenter
  • Time of Earthquake in other Time Zones
Location 15.558°S, 172.073°W
Depth 18 km (11.2 miles) set by location program
Region SAMOA ISLANDS REGION
Distances 185 km (115 miles) ENE of Hihifo, Tonga
195 km (125 miles) S of APIA, Samoa
705 km (435 miles) NNE of NUKU’ALOFA, Tonga
2700 km (1670 miles) NNE of Auckland, New Zealand
Location Uncertainty horizontal +/- 6.6 km (4.1 miles); depth fixed by location program
Parameters NST=293, Nph=293, Dmin=>999 km, Rmss=1.07 sec, Gp= 32°,
M-type=teleseismic moment magnitude (Mw), Version=8
Source
  • USGS NEIC (WDCS-D)
Event ID us2009mdbi

references:

http://earthquake.usgs.gov/eqcenter/eqinthenews/2009/us2009mdbi/#news

WASHINGTON (Reuters)

5 Comments

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