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ALERT: 6.8 earthquake, Samoa Islands region. Sep 23 11:07am at epicenter (8m ago, 356km WSW of APIA, depth 41km).

September 22nd, 2011

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude 6.8 (Preliminary magnitude — update expected within 15 minutes)
Date-Time
  • Thursday, September 22, 2011 at 23:07:04 UTC
  • Friday, September 23, 2011 at 11:07:04 AM at epicenter
Location 14.967°S, 174.824°W
Depth 41.1 km (25.5 miles) set by location program
Region SAMOA ISLANDS REGION
Distances
  • 356 km (221 miles) WSW (248°) from APIA, Samoa
  • 419 km (260 miles) NNW (348°) from Neiafu, Tonga
  • 450 km (280 miles) W (260°) from PAGO PAGO, American Samoa
  • 2709 km (1684 miles) W (272°) from PAPEETE, Tahiti, French Polynesia
Location Uncertainty Error estimate not available
Parameters NST= 8, Nph=0, Dmin=0 km, Rmss=0 sec, Gp=112°,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=B
Source
Event ID pt11265001

Source




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September 22nd, 2011 |