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Magnitude
7.1
Event Time
2014-11-15 02:31:40 UTC
2014-11-15 10:31:40 UTC+08:00 at epicenter
2014-11-14 16:31:40 HST
Location
1.928°N 126.547°E depth=35.0km (21.7mi)
Nearby Cities
156km (97mi) NW of Kota Ternate, Indonesia
156km (97mi) NW of Ternate, Indonesia
160km (99mi) ENE of Bitung, Indonesia
164km (102mi) W of Tobelo, Indonesia
1064km (661mi) SW of Koror Town, Palau
TSUNAMI MESSAGE NUMBER 4 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 0431 UTC SAT NOV 15 2014 ...PTWC FINAL TSUNAMI THREAT MESSAGE... **** 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 ***** PRELIMINARY EARTHQUAKE PARAMETERS --------------------------------- * MAGNITUDE 7.3 * ORIGIN TIME 0232 UTC NOV 15 2014 * COORDINATES 1.9 NORTH 126.7 EAST * DEPTH 40 KM / 25 MILES * LOCATION HALMAHERA INDONESIA EVALUATION ---------- * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.3 OCCURRED IN HALMAHERA, INDONESIA AT 0232 UTC ON SATURDAY NOVEMBER 15 2014. * BASED ON ALL DATA AVAILABLE TO THIS CENTER... THE TSUNAMI THREAT FROM THIS EARTHQUAKE HAS NOW MOSTLY PASSED. ANY REMAINING THREAT SHOULD BE EVALUATED BY LOCAL AUTHORITIES IN IMPACTED AREAS. TSUNAMI THREAT FORECAST...UPDATED --------------------------------- * THERE IS NO LONGER A TSUNAMI THREAT FROM THIS EARTHQUAKE. RECOMMENDED ACTIONS ------------------- * REMAIN OBSERVANT AND EXERCISE NORMAL CAUTION NEAR THE SEA. OTHERWISE... NO ACTION IS REQUIRED. POTENTIAL IMPACTS ----------------- * MINOR SEA LEVEL FLUCTUATIONS MAY OCCUR IN COASTAL AREAS NEAR THE EARTHQUAKE OVER THE NEXT FEW HOURS.... AND CONTINUING FOR UP TO SEVERAL HOURS. NEXT UPDATE AND ADDITIONAL INFORMATION -------------------------------------- * THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT UNLESS NEW INFORMATION IS RECEIVED OR THE SITUATION CHANGES. * BKMG REPORTS A SMALL 9 CM TSUNAMI WAS OBSERVED AT JAILOLO INDONESIA. * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S. GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT EARTHQUAKE.USGS.GOV/EARTHQUAKES -ALL LOWER CASE-. * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT PTWC.WEATHER.GOV AND 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 PTWC.WEATHER.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 NTWC.ARH.NOAA.GOV.
USGS: How large does an earthquake have to be to cause a tsunami?
Magnitudes below 6.5
Earthquakes of this magnitude are very unlikely to trigger a tsunami.Magnitudes between 6.5 and 7.5
Earthquakes of this size do not usually produce destructive tsunamis. However, small sea level changes may be observed in the vicinity of the epicenter. Tsunamis capable of producing damage or casualties are rare in this magnitude range but have occurred due to secondary effects such as landslides or submarine slumps.Magnitudes between 7.6 and 7.8
Earthquakes of this size may produce destructive tsunamis especially near the epicenter; at greater distances small sea level changes may be observed. Tsunamis capable of producing damage at great distances are rare in the magnitude range.Magnitude 7.9 and greater
Destructive local tsunamis are possible near the epicenter, and significant sea level changes and damage may occur in a broader region.Note that with a magnitude 9.0 earthquake, the probability of an aftershock with a magnitude exceeding 7.5 is not negligible. To date, the largest aftershock recorded has been magnitude 7.1 that did not produce a damaging tsunami.
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