WESS21 BABJ 180652

TSUNAMI BULLETIN NUMBER 1
ISSUED BY SOUTH CHINA SEA TSUNAMI ADVISORY CENTER (SCSTAC)
ISSUED 0651 UTC Sep 18 2022

  ...POTENTIAL TSUNAMI THREAT EXISTS FOR ...

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE ***** NOTICE ***** 
THIS STATEMENT IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE UNESCO/IOC SOUTH 
CHINA SEA SUB-REGIONAL TSUNAMI WARNING AND MITIGATION SYSTEM. NATIONAL AUTHORITIES 
WILL BE RESPONSIBLE FOR DETERMINATION OF THE APPROPRIATE LEVEL OF ALERT FOR EACH 
COUNTRY. THE PUBLIC SHOULD FOLLOW THE GUIDANCE OF NATIONAL AUTHORITIES.
**** NOTICE **** NOTICE ****NOTICE **** NOTICE **** NOTICE ***** NOTICE ***** 

[ PRELIMINARY EARTHQUAKE PARAMETERS ]
  *MAGNITUDE	7.2 
  *ORIGIN TIME	0644 UTC Sep 18 2022
  *COORDINATES	23.17 N,121.36 E
  *DEPTH		15.0 KM
  *LOCATION	TAIWAN

[ EVALUATION ]
  THERE IS A POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI CONFINED TO 100-300 KM 
  OF THE EPICENTER BASED ON AVAILABEL INFORMATION. 

[ TSUNAMI AMPLITUDE AND ETA FORECASTS ]
  FORECAST POINT	COORDINATES	ETA(UTC)	MAX. AMPL
  ----------------------------------------------------------------------------------------------
  * THIS LIST IS GROUPED BY COUNTRIES, AND COUNTRY NAMES ARE ORDERED ACCORDING TO 
  THREAT LEVELS.
  * ETA - ESTIMATED TSUNAMI ARRIVAL TIME FOR INITIAL WAVE. NOTING THAT IN SOME 
  COASTAL AREA TSUNAMI WAVES MAY ARRIVE EARLIER THAN OUR ESTIMATE DUE TO COARSE 
  BATHYMETRY USED BY MODEL. 
  * MAX. AMPL - MAXIMUM WAVE HEIGHT RELATIVE TO NORMAL SEA LEVEL, WHICH ARE 
  EXTRACTED FROM MODEL RESULTS AND GROUPED INTO FOUR BINS OF <0.3 M, 0.3 TO 1 M, 
  1 TO 3 M and ABOVE 3 M. NOTING THAT THE INITIAL WAVE MAY NOT NECESSARILY THE 
  LARGEST, AND WAVE ACTIVITIES MAY VARY SIGNIFICANT ALONG COASTS DUE TO LOCAL FEATURES.

[ RECOMMENDED ACTIONS ]
  * LOCAL AUTHORITIES SHOULD PAY CLOSE ATTENTION ON EVALUATION OF THEIR NATIONAL 
  TSUNAMI WARNING CENTER ON TSUNAMI HAZARD, AND TAKE APPROPRIATE ACTIONS IN 
  RESPONSE TO THIS POTENTIAL HAZARD.
  * PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD KEEP ALERT FOR WARNING 
  INFORMATION AND FOLLOW INSTRUCTIONS FROM LOCAL AUTHORITIES.

[ UPDATES ]
  THE NEXT BULLETIN WILL BE ISSUED AS MORE INFORMATION BECOMES AVAILABLE.

[ ADDITIONAL INFORMATION ]
  * MORE DETAILED INFORMATION CAN BE FOUND AT WEBSITE WWW.SCSTAC.ORG.
  * TSUNAMI BULLETIN REGARDING THIS EVENT MAY BE ISSUED BY PACIFIC TSUNAMI WARNING 
  CENTER. IN CASE OF CONFLICTING INFORMATION, MORE CONSERVATIVE INFORMATION SHOULD 
  BE ADOPTED.
  * TEL: +86-10-62104561
  * EMAIL: TSU@NMEFC.CN
---------------------------------------------END OF BULLETIN ---------------------------------------------