周子堯@FB

M 7.8 - 98 km SSE of Perryville, Alaska

• 2020-07-22 06:12:42 (UTC)
• 55.108°N 158.477°W
• 10.0 km depth
• 
  

周子堯@FB

海嘯警報發布!!!估計海嘯波將低於0.3公尺

ZCZC
WEGM42 PHEB 220627
TIBGUM

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
427 PM CHST WED JUL 22 2020

...NO TSUNAMI THREAT TO GUAM/CNMI FROM A DISTANT EARTHQUAKE...


AUDIENCE
--------
EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC


EVALUATION
----------

  * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.4 OCCURRED IN
    THE ALASKA PENINSULA AT 413 PM CHST ON WEDNESDAY JULY 22
    2020.

  * BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO
    GUAM... ROTA... TINIAN OR SAIPAN FROM THIS EARTHQUAKE.


RECOMMENDED ACTIONS
-------------------

  * NO ACTION IS REQUIRED.


POTENTIAL IMPACTS
-----------------

  * NO TSUNAMI IMPACTS ARE EXPECTED.


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

  * MAGNITUDE      7.4
  * ORIGIN TIME    413 PM CHST JUL 22 2020
  * COORDINATES    55.2 NORTH  158.6 WEST
  * DEPTH          8 MILES
  * LOCATION       ALASKA PENINSULA


NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

  * THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
    ADDITIONAL DATA ARE RECEIVED OR THE SITUATION CHANGES.

  * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND ON THE
    INTERNET AT WWW.TSUNAMI.GOV.

  * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
    GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
    EARTHQUAKE.USGS.GOV.

$$



NNNN

周子堯@FB

餘震M6.1
M 6.1 - 103 km ESE of Sand Point, Alaska

• 2020-07-22 06:16:18 (UTC)
• 54.932°N 159.042°W
• 17.7 km depth
• 
  

霧峰追風者

M 6.1 - 66 km SW of Sand Point, Alaska
2020-07-28 08:03:44 (UTC)54.867°N 161.144°W41.3 km depth