TSUNAMI WARNING CENTER – Possible Threat to JAMAICA, CAYMAN ISLANDS, GRAND CAYMAN, CUBA

Santa Cruz California Harbor Tsunami 2011
Santa Cruz California Harbor Tsunami 2011

Updated 1-28-2020 at 1:08pm PDT

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THIS MESSAGE IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
UNESCO/IOC TSUNAMI AND OTHER COASTAL HAZARDS WARNING SYSTEM FOR
THE CARIBBEAN AND ADJACENT REGIONS AND IS MEANT FOR NATIONAL
AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
INFORMATION.

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PRELIMINARY EARTHQUAKE PARAMETERS

  • MAGNITUDE 7.7
  • ORIGIN TIME 1910 UTC JAN 28 2020
  • COORDINATES 19.3 NORTH 78.8 WEST
  • DEPTH 10 KM / 6 MILES
  • LOCATION CUBA REGION

EVALUATION

  • AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.7 OCCURRED IN
    THE CUBA REGION AT 1910 UTC ON TUESDAY JANUARY 28 2020.
  • BASED ON ALL AVAILABLE DATA… THE TSUNAMI THREAT FROM THIS
    EARTHQUAKE HAS PASSED AND THERE IS NO FURTHER THREAT.

TSUNAMI THREAT FORECAST…UPDATED

  • THE TSUNAMI THREAT HAS NOW LARGELY PASSED.

RECOMMENDED ACTIONS

  • GOVERNMENT AGENCIES RESPONSIBLE FOR ANY IMPACTED COASTAL
    AREAS SHOULD MONITOR CONDITIONS AT THE COAST TO DETERMINE IF
    AND WHEN IT IS SAFE TO RESUME NORMAL ACTIVITIES.
  • PERSONS LOCATED NEAR IMPACTED COASTAL AREAS SHOULD STAY ALERT
    FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM LOCAL
    AUTHORITIES.
  • REMAIN OBSERVANT AND EXERCISE NORMAL CAUTION NEAR THE SEA.

POTENTIAL IMPACTS

  • MINOR SEA LEVEL FLUCTUATIONS OF UP TO 1 FOOT ABOVE AND BELOW
    THE NORMAL TIDE MAY CONTINUE OVER THE NEXT FEW HOURS IN SOME
    LOCATIONS.

TSUNAMI OBSERVATIONS

  • THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL
    AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED
    LOCATIONS. THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH
    RESPECT TO THE NORMAL TIDE LEVEL. GAUGE TIME OF MAXIMUM WAVE COORDINATES MEASURE TSUNAMI PERIOD GAUGE LOCATION LAT LON (UTC) HEIGHT (MIN) GEORGE TOWN CY 19.3N 81.4W 1943 0.11M/ 0.4FT 02

NOTE: NO TSUNAMI WAS OBSERVED ON THE GAUGE AT PORT ROYAL JAMAICA
OR AT PUERTO PLATA DOMINICAN REPUBLIC. BASED ON THESE
OBSERVATIONS THE TSUNAMI THREAT HAS PASSED.

NEXT UPDATE AND ADDITIONAL INFORMATION

  • THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT UNLESS
    NEW INFORMATION IS RECEIVED OR THE SITUATION CHANGES.
  • AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
    GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
    EARTHQUAKE.USGS.GOV.
  • FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
    WWW.TSUNAMI.GOV.
  • COASTAL REGIONS OF THE US GULF COAST… US EAST COAST… AND
    THE MARITIME PROVINCES OF CANADA SHOULD REFER TO U.S.
    NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
    AT WWW.TSUNAMI.GOV.