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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 10h

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

Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 10h

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.

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 10h

* NO ACTION IS REQUIRED.

POTENTIAL IMPACTS
---

* NO TSUNAMI IMPACTS ARE EXPECTED.

PRELIMINARY EARTHQUAKE PARAMETERS
---

* MAGNITUDE 6.7
* ORIGIN TIME 349 PM CHST OCT 16 2025
* COORDINATES 2.3 SOUTH 138.9 EAST
* DEPTH 44 MILES
* LOCATION PAPUA INDONESIA

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 10h

EVALUATION
---

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.7 OCCURRED IN
PAPUA, INDONESIA AT 349 PM CHST ON THURSDAY OCTOBER 16 2025.

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

RECOMMENDED ACTIONS
---

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 10h

#Earthquake
M6.7 earthquake PAPUA INDONESIA 22:48PDT Oct 15 Depth 70km: Tsunami NOT expected

- Event details: Preliminary magnitude 6.7 (Mwp) earthquake / Lat: -2.309, Lon: 138.858 at 2025-10-16T05:48:57Z

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

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

Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

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.

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

* NO ACTION IS REQUIRED.

POTENTIAL IMPACTS
---

* NO TSUNAMI IMPACTS ARE EXPECTED.

PRELIMINARY EARTHQUAKE PARAMETERS
---

* MAGNITUDE 6.6
* ORIGIN TIME 1143 AM CHST OCT 16 2025
* COORDINATES 60.0 SOUTH 61.7 WEST
* DEPTH 6 MILES
* LOCATION DRAKE PASSAGE

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

EVALUATION
---

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.6 OCCURRED IN
THE DRAKE PASSAGE AT 1143 AM CHST ON THURSDAY OCTOBER 16
2025.

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

RECOMMENDED ACTIONS
---

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

#Earthquake
M6.6 earthquake DRAKE PASSAGE 18:42PDT Oct 15 Depth 10km: Tsunami NOT expected

- Event details: Preliminary magnitude 6.6 (Mwp) earthquake / Lat: -60.002, Lon: -61.701 at 2025-10-16T01:42:33Z

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
EARTHQUAKE.USGS.GOV.

Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

* 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.

1

Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

POTENTIAL IMPACTS
---

* NO TSUNAMI IMPACTS ARE EXPECTED.

PRELIMINARY EARTHQUAKE PARAMETERS
---

* MAGNITUDE 6.6
* ORIGIN TIME 243 PM SST OCT 15 2025
* COORDINATES 60.0 SOUTH 61.7 WEST
* DEPTH 6 MILES
* LOCATION DRAKE PASSAGE

NEXT UPDATE AND ADDITIONAL INFORMATION
---

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

EVALUATION
---

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.6 OCCURRED IN
THE DRAKE PASSAGE AT 243 PM SST ON WEDNESDAY OCTOBER 15
2025.

* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO
AMERICAN SAMOA FROM THIS EARTHQUAKE.

RECOMMENDED ACTIONS
---

* NO ACTION IS REQUIRED.

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 14h

#Earthquake
M6.6 earthquake DRAKE PASSAGE 18:42PDT Oct 15 Depth 10km: Tsunami NOT expected

- Event details: Preliminary magnitude 6.6 (Mwp) earthquake / Lat: -60.002, Lon: -61.701 at 2025-10-16T01:42:33Z

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
AT WWW.TSUNAMI.GOV.

Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

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...

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

* THE NEXT MESSAGE WILL BE ISSUED IN ONE HOUR... OR SOONER IF
THE SITUATION WARRANTS.

* 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

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

* IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT
THE TIME OF THE MAXIMUM TSUNAMI WAVES.

* PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN... BE
CRUSHED BY DEBRIS IN THE WATER... OR BE SWEPT OUT TO SEA.

NEXT UPDATE AND ADDITIONAL INFORMATION
---

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST
FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.

* IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO
THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION
OF THE SHORELINE.

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

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.

POTENTIAL IMPACTS
---

* A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

THE NEAREST SEA LEVEL GAUGES TO CONFIRM THIS FORECAST.

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

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

TSUNAMI WAVES ARE POSSIBLE FOR COASTS LOCATED WITHIN 1000 KM
OF THE EARTHQUAKE EPICENTER.

TSUNAMI THREAT FORECAST...UPDATED
---

* THE TSUNAMI FORECAST INDICATES NO TSUNAMI AMPLITUDES
ABOVE 0.3 METERS FOR ANY COAST. WE WILL CONTINUE TO MONITOR

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

otentially destructive teletsunamis generated anywhere in the Pacific Basin.

EVALUATION
---

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.6 OCCURRED IN
THE DRAKE PASSAGE AT 2029 UTC ON FRIDAY OCTOBER 10 2025.

* BASED ON THE PRELIMINARY EARTHQUAKE PARAMETERS... HAZARDOUS

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Tsunami Alerts (PTWC) from Pacific Tsunami Warning Center @tsunamialertsptwc.bsky.social · 5d

#Earthquake
M7.6 earthquake DRAKE PASSAGE 13:29PDT Oct 10 Depth 14km: Tsunami possible

Tsunami Warning, Watch, and/or Advisory Bulletin issued by Pacific Tsunami Warning Center (PTWC) to its US and international AOR for confirmed or p...

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