Tsunami Watch/Warning
Issued by NWS
Issued by NWS
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334 WEPA40 PHEB 080908 TSUPAC TSUNAMI MESSAGE NUMBER 2 NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI 0906 UTC THU AUG 8 2024 ...PTWC TSUNAMI INOFRMATION STATEMENT SUPPLEMENT **** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE ***** THIS MESSAGE IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM. NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED INFORMATION. **** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE ***** NOTE UPDATED MAGNITUDE. PRELIMINARY EARTHQUAKE PARAMETERS --------------------------------- * MAGNITUDE 7.1 * ORIGIN TIME 0742 UTC AUG 8 2024 * COORDINATES 31.8 NORTH 131.7 EAST * DEPTH 33 KM / 20 MILES * LOCATION KYUSHU JAPAN EVALUATION ---------- * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.1 OCCURRED IN KYUSHU, JAPAN AT 0742 UTC ON THURSDAY AUGUST 8 2024. * BASED ON THE PRELIMINARY EARTHQUAKE PARAMETERS... HAZARDOUS TSUNAMI WAVES ARE POSSIBLE FOR COASTS LOCATED WITHIN 300 KM OF THE EARTHQUAKE EPICENTER. TSUNAMI THREAT FORECAST...UPDATED --------------------------------- * HAZARDOUS TSUNAMI WAVES FROM THIS EARTHQUAKE ARE POSSIBLE WITHIN 300 KM OF THE EPICENTER ALONG THE COASTS OF JAPAN. RECOMMENDED ACTIONS ------------------- * GOVERNMENT AGENCIES RESPONSIBLE FOR THREATENED COASTAL AREAS SHOULD TAKE ACTION TO INFORM AND INSTRUCT ANY COASTAL POPULATIONS AT RISK IN ACCORDANCE WITH THEIR OWN EVALUATION... PROCEDURES AND THE LEVEL OF THREAT. * PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD STAY ALERT FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM NATIONAL AND LOCAL AUTHORITIES. ESTIMATED TIMES OF ARRIVAL -------------------------- * ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE FOR PLACES WITH A POTENTIAL TSUNAMI THREAT. ACTUAL ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN WAVES CAN BE FIVE MINUTES TO ONE HOUR. LOCATION REGION COORDINATES ETA(UTC) ------------------------------------------------------------ NOBEOKA JAPAN 32.5N 131.8E 0808 08/08 SHIMIZU JAPAN 32.8N 133.0E 0825 08/08 NAGASAKI JAPAN 32.7N 129.7E 0956 08/08 TSUNAMI OBSERVATIONS -------------------- * THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED LOCATIONS. THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH RESPECT TO THE NORMAL TIDE LEVEL. GAUGE TIME OF MAXIMUM WAVE COORDINATES MEASURE TSUNAMI PERIOD GAUGE LOCATION LAT LON (UTC) HEIGHT (MIN) ------------------------------------------------------------- TOSASHIMIZU SHIKOKU 32.8N 133.0E 0831 0.26M/ 0.8FT 26 DART 21420 28.9N 135.0E 0832 0.00M/ 0.0FT 18 ABURATSU JP 31.6N 131.4E 0811 0.43M/ 1.4FT 22 NEXT UPDATE AND ADDITIONAL INFORMATION -------------------------------------- * THIS WILL BE THE FINAL MESSAGE UNLESS ADDITIONAL DATA ARE RECEIVED. * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S. GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT EARTHQUAKE.USGS.GOV. * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT WWW.TSUNAMI.GOV. * COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT WWW.TSUNAMI.GOV. * COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON... BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S. NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND AT WWW.TSUNAMI.GOV. $$