Magnitude 5.7 - TONGA REGION
2011 April 22 17:14:48 UTC
Magnitude 5.7
Date-Time Friday, April 22, 2011 at 17:14:48 UTC
Saturday, April 23, 2011 at 05:14:48 AM at epicenter
Time of Earthquake in other Time Zones
Location 22.703°S, 174.631°W
Depth 1 km (~0.6 mile) (poorly constrained)
Region TONGA REGION
Distances 183 km (113 miles) SSE of NUKU`ALOFA, Tonga
453 km (281 miles) S of Neiafu, Tonga
478 km (297 miles) ESE of Ndoi Island, Fiji
1872 km (1163 miles) NE of Auckland, New Zealand
Location Uncertainty horizontal +/- 17.3 km (10.7 miles); depth +/- 6.3 km (3.9 miles)
Parameters NST=270, Nph=284, Dmin=797 km, Rmss=0.92 sec, Gp= 47°,
M-type=regional moment magnitude (Mw), Version=5
Source USGS NEIC (WDCS-D)
fuente. usgs
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