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Strong Earthquake Strikes Taiwan

Posted by feww on October 4, 2009

Strong Earthquake Measuring up to 6.4Mw Strikes East Coast of Taiwan

Strong earthquake measuring up to 6.4 Mw struck off the east coast of Taiwan at a depth of 17.5 km on Saturday, October 03, 2009 at 17:36 UTC.

As the quake occurred, Typhoon Parma was reported heading towards the southeastern coast of Taiwan still reeling from the aftermath of typhoon Morakot that  struck the island in August, killing more than 1000 people.

10-degree Map Centered at 25°N,120°E

Taiwan 4-10-09
Earthquake Location Map. Source: USGS/EHP. Enhanced by FEWW

USGS/EHP has downgraded this quake to a magnitude 6.1 shock.

Earthquake Details:

  • Magnitude: 6.1 [possibly measuring up to 6.4Mw – Moderator]
  • Date-Time:
    • Saturday, October 03, 2009 at 17:36:05 UTC
    • Sunday, October 04, 2009 at 01:36:05 AM at epicenter
  • Location 23.635°N, 121.565°E
  • Depth 17.5 km (10.9 miles)
  • Region TAIWAN
  • Distances
    • 35 km (25 miles) S of Hua-lien, Taiwan
    • 110 km (65 miles) ESE of T’ai-chung, Taiwan
    • 110 km (70 miles) NNE of T’ai-tung, Taiwan
    • 160 km (100 miles) S of T’AI-PEI, Taiwan
  • Location Uncertainty:  horizontal +/- 5.7 km (3.5 miles); depth +/- 5 km (3.1 miles)
  • Parameters NST= 97, Nph= 97, Dmin=38.4 km, Rmss=1.06 sec, Gp= 22°, M-type=teleseismic moment magnitude (Mw), Version=6
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2009mhcf

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