Major Earthquake Magnitude 7.3 – RYUKYU ISLANDS, JAPAN

Earthquake Details

Magnitude 7.3 (Preliminary magnitude — update expected within 15 minutes)
  • Friday, February 26, 2010 at 20:31:26 UTC
  • Saturday, February 27, 2010 at 05:31:26 AM at epicenter
Location 26.050°N, 128.510°E
Depth 10 km (6.2 miles) set by location program
  • 85 km (53 miles) E (99°) from Naha, Okinawa, Japan
  • 471 km (292 miles) ENE (66°) from Ishigaki-jima, Ryukyu Islands, Japan
  • 1281 km (796 miles) S (173°) from SEOUL, South Korea
Location Uncertainty Error estimate not available
Parameters NST=006, Nph=006, Dmin=0 km, Rmss=0.72 sec, Gp= 90°,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=A
Event ID pt10057003
  • This event has been reviewed by a seismologist.
  • Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.

via Magnitude 7.3 – RYUKYU ISLANDS, JAPAN.

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