ホーム
防災情報
各種データ・資料
知識・解説
気象庁について
案内・申請
ホーム > Northwest Pacific Tsunami Advisory

Northwest Pacific Tsunami Advisory

Most recent Messages within one month


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 141319
TSUNAMI BULLETIN NUMBER 001
   ISSUED BY NWPTAC(JMA)
   ISSUED AT 1319Z 14 MAY 2019
HYPOCENTRAL PARAMETERS
ORIGIN TIME:1258Z 14 MAY 2019
PRELIMINARY EPICENTER:LAT04.2SOUTH LON152.5EAST
 NEW BRITAIN REGION, P.N.G.
 BISMARCK AND SOLOMON ISLANDS
MAG:7.7
BY PTWC

EVALUATION
 THERE IS A POSSIBILITY OF A DESTRUCTIVE REGIONAL TSUNAMI

THIS BULLETIN IS FOR
NORTH COASTS OF PAPUA NEW GUINEA
MICRONESIA
SOLOMON SEA

ESTIMATED TSUNAMI ARRIVAL TIMES AND WAVE AMPLITUDES
NORTH COASTS OF PAPUA NEW GUINEA
 LOCATION              COORDINATES  ARRIVAL TIME  AMPL
 RABAUL                04.2S 152.3E 1322Z 14 MAY  0.3-1M
MICRONESIA
 LOCATION              COORDINATES  ARRIVAL TIME  AMPL
 KOSRAE_IS.            05.5N 163.0E 1536Z 14 MAY  0.3-1M
SOLOMON SEA
 LOCATION              COORDINATES  ARRIVAL TIME  AMPL
 AMUN                  06.0S 154.7E 1319Z 14 MAY  1-3M

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

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.