Magnitude 4.7 - SAMOA ISLANDS REGION

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2012 May 21 03:39:44 UTC

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Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude4.7
Date-Time
Location15.453°S, 171.864°W
Depth9.9 km (6.2 miles)
RegionSAMOA ISLANDS REGION
Distances179 km (111 miles) SW of PAGO PAGO, American Samoa
179 km (111 miles) S of APIA, Samoa
210 km (130 miles) ENE of Hihifo, Tonga
2717 km (1688 miles) NNE of Auckland, New Zealand
Location Uncertaintyhorizontal +/- 24.3 km (15.1 miles); depth +/- 2.1 km (1.3 miles)
ParametersNST=151, Nph=151, Dmin=171.4 km, Rmss=0.79 sec, Gp= 83°,
M-type=body wave magnitude (Mb), Version=8
Source
  • Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
Event IDusb0009u76
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