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Northwest Pacific Tsunami Advisory

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Information bulletins provided by the Northwest Pacific Tsunami Advisory Center (NWPTAC) should not be construed as official warnings or evacuation notices for the areas concerned. The issuance of actual evacuation notices is the responsibility of individual local authorities.


WEPA40 RJTD 250344
TSUNAMI BULLETIN NUMBER 002
   ISSUED BY NWPTAC(JMA)
   ISSUED AT 0344Z 25 MAR 2020
HYPOCENTRAL PARAMETERS (REVISION)
ORIGIN TIME:0249Z 25 MAR 2020
PRELIMINARY EPICENTER:LAT49.0NORTH LON157.7EAST
 EAST OF KURIL ISLANDS
 JAPAN - KURIL ISLANDS - KAMCHATKA PENINSULA
MAG:7.5 (MW)

EVALUATION
 THERE IS A POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI
 NEAR THE EPICENTER

THIS BULLETIN IS FOR
KURIL ISLANDS

ESTIMATED TSUNAMI ARRIVAL TIMES AND WAVE AMPLITUDES
KURIL ISLANDS
 LOCATION              COORDINATES  ARRIVAL TIME  AMPL
 SEVERO_KURILSK        50.8N 156.1E 0312Z 25 MAR  1-3M (REVISION)

AMPL - MAXIMUM AMPLITUDE IN METERS FROM THE
UNDISTURBED SEA LEVEL TO THE CREST

IN SOME COASTAL AREAS (PARTICULARLY NEAR THE EPICENTER),
TSUNAMI WAVES MAY BE HIGHER AND/OR ARRIVE EARLIER THAN
ESTIMATED FOR NEARBY FORECAST POINTS.
AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.

THE EVALUATION OF TSUNAMIGENIC POTENTIAL AND ESTIMATED
ARRIVAL TIMES FOR TSUNAMI WAVES MAY ALSO DIFFER FROM
THOSE OF PTWC DUE TO DIFFERENCES IN ESTIMATED EARTHQUAKE
PARAMETERS AND THE TSUNAMI FORECAST MODEL.
AUTHORITIES SHOULD REFER TO EARLIER ARRIVAL TIMES
FOR GREATEST SAFETY.

THIS WILL BE THE FINAL BULLETIN UNLESS CHANGES IN THE POTENTIAL
FOR TSUNAMI GENERATION ARE DEEMED POSSIBLE BASED ON EARTHQUAKE
RE-EVALUATION OR REPORTS INDICATING TSUNAMI OBSERVATION ARE
RECEIVED.



The Northwest Pacific Tsunami Advisory Center (NWPTAC) provides information on tsunamis in the western North Pacific and the South China Sea, including data on estimated/observed arrival times and tsunami heights, as well as earthquake information.