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Strong Quake Strikes Cayman Islands Region

Posted by feww on January 20, 2010

Earthquake Measuring up to 6.1 Mw Strikes Near Cayman Islands

Strong earthquake measuring up to M6.1 struck offshore near Cayman Islands about 70 km (45 miles) ESE of George Town,  Cayman Islands and about 880 km WNW of the powerful earthquake that devastated Port-au-Prince 8 days ago. The quake struck at a depth of about 10km on January 19, 2010 at 14:24 UTC.

Tsunami Report

There were no report of a tsunami in the area caused by this event.

Damage Report

The earthquake reportedly shook buildings in George town but there was no report of damage or injuries.

Previous Quakes

Grand Cayman was struck by a 6.8 Mw earthquake on December 14, 2004, three months after Hurricane Ivan had already raked the island. However, the quake caused only minor structural damage to some buildings.

FEWW Earthquake Forecast:

The Gonave Microplate, near the boundaries of which this earthquake occurred, could produce more seismicity in 2010, with possibly another powerful quake measuring 7.4 to 7.6Mw striking its southern boundary.  Kingston, Jamaica could experience a powerful quake with a probability of 65 percent.

10-degree Map Centered at 20°N,80°W


Earthquake Location map.
Source: USGS/EHP. Enhanced by FEWW. (Click Images to enlarge).


Seismic Hazard Map showing the west side  end of
the Gonave Microplate. USGS/EHP. Click image to enlarge.


Seismic Hazard Map of Haiti Region showing the east side of the Gonave Microplate, which is sandwiched between the North American and the Caribbean Plates .Source: USGS/EHP. Enhanced by FEWW. Click image to enlarge.

Earthquake Details

  • Magnitude: 5.8 [EQ magnitude estimated by FEWW: 6.1 Mw - USGS/EHP routinely downgrades earthquakes by about 0.3 Mw]
  • Date-Time:
    • Tuesday, January 19, 2010 at 14:23:38 UTC
    • Tuesday, January 19, 2010 at 09:23:38 AM at epicenter
  • Location: 19.020°N, 80.779°W
  • Depth: 10 km (6.2 miles)
  • Region: CAYMAN ISLANDS REGION
  • Distances:
    • 70 km (45 miles) ESE of GEORGE TOWN, Cayman Islands
    • 305 km (190 miles) WNW of Montego Bay, Jamaica
    • 345 km (215 miles) S of Cienfuegos, Cuba
    • 750 km (465 miles) S of Miami, Florida
    • 880 km WNW of the powerful earthquake that devastated Port-au-Prince on January 12, 2010
  • Location Uncertainty:  horizontal +/- 4.2 km (2.6 miles); depth fixed by location program
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2010rrbc

Related Links:

Posted in Cayman Islands quake, Cienfuegos, eathquakes, George Town earthquake, Haiti earthquake, Montego Bay | Tagged: , , , , , , , , | 1 Comment »

Powerful Quake Strikes Near Andaman Isls, India

Posted by feww on August 11, 2009

Magnitude 7.6 Quake Strikes Near Andaman Islands, India Region

us2009kdb2 andaman
Earthquake Location Map. Source: USGS

Earthquake Details

  • Magnitude: 7.6
  • Date-Time
    • Monday, August 10, 2009 at 19:55:39 UTC
    • Tuesday, August 11, 2009 at 01:55:39 AM at epicenter
  • Location: 14.013°N, 92.923°E
  • Depth: 33.1 km (20.6 miles)
  • Region: ANDAMAN ISLANDS, INDIA REGION
  • Distances:
    • 260 km (160 miles) N of Port Blair, Andaman Islands, India
    • 365 km (225 miles) SSW of Pathein (Bassein), Myanmar
    • 825 km (510 miles) W of BANGKOK, Thailand
    • 2295 km (1420 miles) SE of NEW DELHI, Delhi, India
  • Location Uncertainty:  horizontal +/- 9.8 km (6.1 miles); depth +/- 5.7 km (3.5 miles)
  • Parameters: NST= 64, Nph= 64, Dmin=833.8 km, Rmss=0.86 sec, Gp= 72°, M-type=(unknown type), Version=6
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2009kdb2

Seismic Hazard Map [USGS]

seishaz
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

Historic Seismicity
hisseis
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

world quakes 7 days

Source: USGS

Tsunami Evaluation:

SEA LEVEL READINGS INDICATE THAT A SIGNIFICANT TSUNAMI WAS NOT
GENERATED. THEREFORE THE TSUNAMI WATCH ISSUED BY THIS CENTER
IS NOW CANCELED.

Related Links:

Posted in earthquake forecast, eathquakes, seismic event report, Seismic Hazard, Tsunami Evaluation | Tagged: | Leave a Comment »

 
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