Overall Green Earthquake alert in Drake Passage on 16 Oct 2025 01:42 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

M 6.3 in Drake Passage on 16 Oct 2025 01:42 UTC

Global Telecommunication Service

GTS (Global Telecommunication Service) is the official Warning and Alerting channel by the World Meteorological Organization (WMO) adopted by several Warning Organizations. As soon as a new GTS message regarding Tropical Cyclones(WT) or Tsunami(WE) the messages are processed and possibly assigned to the specific event. When a new GTS message is present an new tab in the specific event report page is present.The presence of a GTS message is shown in the homepage with a dedicated icon.

Click on the messages list to visualize on the right the detailed text.

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)

16/10 02:05 WEAK53PAAQ160203

16/10 01:59 WEXX32PAAQ160157

16/10 01:56 WEGM42PHEB160154

16/10 01:54 WEPA42PHEB160153

2025-10-16 02:05 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake has occurred a TSUNAMI is not expected

Original Message :

WEAK53 PAAQ 160203
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
703 PM PDT Wed Oct 15 2025

...THIS IS A TSUNAMI INFORMATION STATEMENT...

EVALUATION
----------
* An earthquake has occurred; a tsunami is not expected.

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 6.6
* Origin Time 1743 AKDT Oct 15 2025
1843 PDT Oct 15 2025
0143 UTC Oct 16 2025
* Coordinates 60.0 South 61.7 West
* Depth 6 miles
* Location near the Drake Passage, south of South America

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Further information will be issued by the United States
Geological Survey (earthquake.usgs.gov) or the appropriate
regional seismic network.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

$$

2025-10-16 01:59 message from NTWC link

Key information extracted from original GTS message :

Evaluation

There is no TSUNAMI danger for the u s east coast the gulf of america STATES or the eastern coast of canada
Based on earthquake information and historic TSUNAMI records the earthquake is not expected to generate a tsunami
An earthquake has occurred with parameters listed below

Original Message :

WEXX32 PAAQ 160157
TIBATE

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
957 PM EDT Wed Oct 15 2025

...THIS IS A TSUNAMI INFORMATION STATEMENT FOR THE U.S. EAST COAST,
GULF OF AMERICA STATES, AND EASTERN CANADA...

EVALUATION
----------
* There is no tsunami danger for the U.S. east coast, the Gulf of
America states, or the eastern coast of Canada.

* Based on earthquake information and historic tsunami records,
the earthquake is not expected to generate a tsunami.

* An earthquake has occurred with parameters listed below.

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 6.6
* Origin Time 2143 EDT Oct 15 2025
2043 CDT Oct 15 2025
0943 AST Oct 15 2025
0143 UTC Oct 16 2025
* Coordinates 60.0 South 61.7 West
* Depth 6 miles
* Location near the Drake Passage, south of South America

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Caribbean coastal regions should refer to the Pacific
Tsunami Warning Center messages at tsunami.gov.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

$$

2025-10-16 01:56 message from NTWC link

Key information extracted from original GTS message :

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

Original Message :

WEGM42 PHEB 160154
TIBGUM

GUZ001>004-160354-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1154 AM CHST THU OCT 16 2025

...NO TSUNAMI THREAT TO GUAM/CNMI FROM A DISTANT EARTHQUAKE...

AUDIENCE
--------
EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC

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
-------------------

* 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

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.

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

$$

2025-10-16 01:54 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 6.6 occurred in the drake passage at 0143 UTC on thursday OCTOBER 16 2025
Based on all available data there is no TSUNAMI threat from this earthquake

Original Message :

WEPA42 PHEB 160153
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0153 UTC THU OCT 16 2025

...PTWC TSUNAMI INFORMATION STATEMENT...

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THIS STATEMENT 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 6.6
* ORIGIN TIME 0143 UTC OCT 16 2025
* COORDINATES 60.0 SOUTH 61.7 WEST
* DEPTH 10 KM / 6 MILES
* LOCATION DRAKE PASSAGE

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.6 OCCURRED IN
THE DRAKE PASSAGE AT 0143 UTC ON THURSDAY OCTOBER 16 2025.

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

RECOMMENDED ACTIONS
-------------------

* NO ACTION IS REQUIRED.

NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

* THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED OR THE SITUATION CHANGES.

* 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.

$$

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