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22 October 2011

Magnitude 7.4 - KERMADEC ISLANDS REGION 2011 October 21 17:57:16 UTC


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Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude7.4
Date-Time
Location28.998°S, 176.183°W
Depth32.9 km (20.4 miles)
RegionKERMADEC ISLANDS REGION
Distances169 km (105 miles) E of Raoul Island, Kermadec Islands
375 km (233 miles) NE of L'Esperance Rock, Kermadec Islands
877 km (544 miles) S of NUKU`ALOFA, Tonga
1215 km (754 miles) NE of Auckland, New Zealand
Location Uncertaintyhorizontal +/- 14.1 km (8.8 miles); depth +/- 2.7 km (1.7 miles)
ParametersNST=741, Nph=742, Dmin=172.5 km, Rmss=0.68 sec, Gp= 11°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=8
Source
  • Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
Event IDusb0006b6p

- USGS