WESS21 BABJ 072347 TSUNAMI BULLETIN NUMBER 1 ISSUED BY SOUTH CHINA SEA TSUNAMI ADVISORY CENTER (SCSTAC) ISSUED 2346 UTC Jun 07 2026 ...POTENTIAL TSUNAMI THREAT EXISTS FOR INDONESIA,PHILIPPINES,MALAYSIA... **** 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 8.1 *ORIGIN TIME 2337 UTC Jun 07 2026 *COORDINATES 5.76 N,125.18 E *DEPTH 15 KM *LOCATION MINDANAO, PHILIPPINES [ EVALUATION ] THERE IS A POSSIBILITY OF A DESTRUCTIVE BASIN-WIDE TSUNAMI BASED ON AVAILABLE INFORMATION. [ TSUNAMI AMPLITUDE AND ETA FORECASTS ] FORECAST POINT COORDINATES ETA(UTC) MAX. AMPL -------------------------------------------------------------------------------- INDONESIA MELONGUANE 126.6, 4.1 0007 0.3-1M TABUKAN_TENGAH 125.6, 3.6 0014 1-3M MANADO 124.9, 1.6 0031 0.3-1M TOLI-TOLI 120.7, 1.1 0049 0.3-1M JAILOLO 127.5, 1.1 0054 0.3-1M TARAKAN 117.6, 3.3 0226 0.3-1M PHILIPPINES COTABUTO_CITY 124.2, 7.3 0013 0.3-1M ZAMBOANGA 122.3, 7.0 0037 1-3M GENERAL_SANTOS 125.2, 6.1 2353 1-3M MALAYSIA LAHAD_DATU 118.4, 4.9 0313 0.3-1M * THIS LIST IS GROUPED BY COUNTRIES, AND COUNTRY NAMES ARE ORDERED ACCORDING TO THREAT LEVELS. * ETA - ESTIMATED TIME OF ARRIVAL OF THE INITIAL TSUNAMI WAVE. NOTING THAT IN SOME COASTAL AREAS 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 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 BE THE LARGEST, AND WAVE ACTIVITIES MAY VARY SIGNIFICANTLY ALONG COASTS DUE TO LOCAL FEATURES. [ RECOMMENDED ACTIONS ] * LOCAL AUTHORITIES SHOULD PAY CLOSE ATTENTION TO THE EVALUATION OF THEIR NATIONAL TSUNAMI WARNING CENTERS 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 SCSTAC.OCEANGUIDE.ORG.CN OR BSCSTAC.HKO.GOV.HK. * 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 ---------------------------------------------