Overall Green Earthquake in Japan on 09 Nov 2025 08:03 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 6.8 in Japan on 09 Nov 2025 08:03 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)

09/11 11:16 WEPA40RJTD091115

09/11 10:17 WEPA40RJTD091016

09/11 09:01 WEPA40RJTD090901

09/11 08:19 WEPA40RJTD090819

09/11 08:18 WEIO22WIIX090817

09/11 08:17 WEAK53PAAQ090816

09/11 08:17 WEIO20DEMS090814

09/11 08:16 WEPA42PHEB090815

09/11 08:15 WEIO24AMMC090813

09/11 08:13 WEPA40RJTD090812

2025-11-09 11:16 message from JMA link

Original Message :

WEPA40 RJTD 091115
TSUNAMI BULLETIN ISSUED BY JMA AT 1116Z 9 NOV

ORIGIN TIME 0803Z 9 NOV
PRELIMINARY EPICENTER LAT 39.4 N. LON 143.5 E.
E OFF NORTHERN HONSHU
FOCAL DEPTH 20 KM MAG 6.9

ALL TSUNAMI WARNINGS WERE LIFTED AT 1116Z 9 NOV
NO FURTHER ACTION WILL BE TAKEN=

2025-11-09 10:17 message from JMA link

Key information extracted from original GTS message :

Evaluation

There is a very small possibility of a destructive local TSUNAMI estimation at forecast points - no TSUNAMI waves with an amplitude of 0.3 meters or more are expected at any forecast point
However in some coastal areas (particularly near the epicenter) higher TSUNAMI waves than estimated MAY arrive
Authorities should be aware of this possibility

Original Message :

WEPA40 RJTD 091016
TSUNAMI BULLETIN NUMBER 003
ISSUED BY NWPTAC(JMA)
ISSUED AT 1016Z 09 NOV 2025
PART 01 OF 01 PARTS

HYPOCENTRAL PARAMETERS
ORIGIN TIME:0803Z 09 NOV 2025
PRELIMINARY EPICENTER:LAT39.4NORTH LON143.5EAST
OFF EAST COAST OF HONSHU, JAPAN
JAPAN - KURIL ISLANDS - KAMCHATKA PENINSULA
MAG:6.9 (MJMA)

EVALUATION
THERE IS A VERY SMALL POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI

ESTIMATION AT FORECAST POINTS - NO TSUNAMI WAVES WITH AN AMPLITUDE
OF 0.3 METERS OR MORE ARE EXPECTED AT ANY FORECAST POINT.

HOWEVER, IN SOME COASTAL AREAS (PARTICULARLY NEAR THE EPICENTER),
HIGHER TSUNAMI WAVES THAN ESTIMATED MAY ARRIVE.
AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.

MEASUREMENTS OR REPORTS OF TSUNAMI (REVISION)
LOCATION COORDINATES ARRIVAL TIME AMPL
OFUNATO 39.0N 141.8E
MAXIMUM TSUNAMI WAVE 0925Z 09 NOV 0.2M

MAXIMUM TSUNAMI WAVE - HALF THE AMPLITUDE FROM THE TROUGH
TO THE CREST

THIS WILL BE THE FINAL BULLETIN UNLESS CHANGES IN THE POTENTIAL
FOR TSUNAMI GENERATION ARE DEEMED POSSIBLE BASED ON EARTHQUAKE
RE-EVALUATION OR REPORTS INDICATING TSUNAMI OBSERVATION ARE
RECEIVED.

=

2025-11-09 09:01 message from JMA link

Key information extracted from original GTS message :

Evaluation

There is a very small possibility of a destructive local TSUNAMI estimation at forecast points - no TSUNAMI waves with an amplitude of 0.3 meters or more are expected at any forecast point
However in some coastal areas (particularly near the epicenter) higher TSUNAMI waves than estimated MAY arrive
Authorities should be aware of this possibility

Original Message :

WEPA40 RJTD 090901
TSUNAMI BULLETIN NUMBER 002
ISSUED BY NWPTAC(JMA)
ISSUED AT 0901Z 09 NOV 2025
PART 01 OF 01 PARTS

HYPOCENTRAL PARAMETERS
ORIGIN TIME:0803Z 09 NOV 2025
PRELIMINARY EPICENTER:LAT39.4NORTH LON143.5EAST
OFF EAST COAST OF HONSHU, JAPAN
JAPAN - KURIL ISLANDS - KAMCHATKA PENINSULA
MAG:6.7 (MJMA)

EVALUATION
THERE IS A VERY SMALL POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI

ESTIMATION AT FORECAST POINTS - NO TSUNAMI WAVES WITH AN AMPLITUDE
OF 0.3 METERS OR MORE ARE EXPECTED AT ANY FORECAST POINT.

HOWEVER, IN SOME COASTAL AREAS (PARTICULARLY NEAR THE EPICENTER),
HIGHER TSUNAMI WAVES THAN ESTIMATED MAY ARRIVE.
AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.

MEASUREMENTS OR REPORTS OF TSUNAMI
LOCATION COORDINATES ARRIVAL TIME AMPL
OFUNATO 39.0N 141.8E
MAXIMUM TSUNAMI WAVE 0839Z 09 NOV 0.1M

MAXIMUM TSUNAMI WAVE - HALF THE AMPLITUDE FROM THE TROUGH
TO THE CREST

THIS WILL BE THE FINAL BULLETIN UNLESS CHANGES IN THE POTENTIAL
FOR TSUNAMI GENERATION ARE DEEMED POSSIBLE BASED ON EARTHQUAKE
RE-EVALUATION OR REPORTS INDICATING TSUNAMI OBSERVATION ARE
RECEIVED.

=

2025-11-09 08:19 message from JMA link

Key information extracted from original GTS message :

Evaluation

There is a very small possibility of a destructive local TSUNAMI estimation at forecast points - no TSUNAMI waves with an amplitude of 0.3 meters or more are expected at any forecast point
However in some coastal areas (particularly near the epicenter) higher TSUNAMI waves than estimated MAY arrive
Authorities should be aware of this possibility
This will be the final bulletin unless changes in the potential for TSUNAMI generation are deemed possible based on earthquake re-evaluation or reports indicating TSUNAMI observation are received

Original Message :

WEPA40 RJTD 090819
TSUNAMI BULLETIN NUMBER 001
ISSUED BY NWPTAC(JMA)
ISSUED AT 0819Z 09 NOV 2025
PART 01 OF 01 PARTS

HYPOCENTRAL PARAMETERS
ORIGIN TIME:0803Z 09 NOV 2025
PRELIMINARY EPICENTER:LAT39.4NORTH LON143.5EAST
OFF EAST COAST OF HONSHU, JAPAN
JAPAN - KURIL ISLANDS - KAMCHATKA PENINSULA
MAG:6.7 (MJMA)

EVALUATION
THERE IS A VERY SMALL POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI

ESTIMATION AT FORECAST POINTS - NO TSUNAMI WAVES WITH AN AMPLITUDE
OF 0.3 METERS OR MORE ARE EXPECTED AT ANY FORECAST POINT.

HOWEVER, IN SOME COASTAL AREAS (PARTICULARLY NEAR THE EPICENTER),
HIGHER TSUNAMI WAVES THAN ESTIMATED MAY ARRIVE.
AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.

THIS WILL BE THE FINAL BULLETIN UNLESS CHANGES IN THE POTENTIAL
FOR TSUNAMI GENERATION ARE DEEMED POSSIBLE BASED ON EARTHQUAKE
RE-EVALUATION OR REPORTS INDICATING TSUNAMI OBSERVATION ARE
RECEIVED.

=

2025-11-09 08:18 link

Original Message :

WEIO22 WIIX 090817
TSP-InaTEWS-20251109-0817-001
--------------------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER INDONESIA (InaTEWS-BMKG)
issued at 0817 UTC, Nov 09, 2025
--------------------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES (NTWC)
FROM: IOTWMS-TSP INDONESIA

NOTIFICATION:
IOTWMS-TSP INDONESIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 1 FOR
THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

Magnitude : 6.6 Mwp
Depth : 26km
Date : 09 Nov 2025
Origin Time: 08:03:41 UTC
Latitude : 39.49N
Longitude : 143.24E
Location : Off East Coast of Honshu, Japan

TO VIEW THE BULLETIN GO TO THE IOTWMS-TSP INDONESIA WEBSITE AT:

http://rtsp.bmkg.go.id

NOTE: THIS IS A RESTRICTED-ACCESS WEBSITE CONTAINING TECHNICAL DATA
FOR INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES ONLY. IT IS NOT
FOR GENERAL PUBLIC ACCESS.

GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:

INDONESIA TSUNAMI EARLY WARNING SYSTEM (InaTEWS)
THE AGENCY FOR METEOROLOGY CLIMATOLOGY AND GEOPHYSICS (BMKG)
Address: Jl. Angkasa I no.2 Kemayoran, Jakarta, Indonesia, 10720
Tel.: +62 (21) 65867045
Fax: +62 (21) 6546316
P.O. Box 3540 Jakarta
Website: http://rtsp.bmkg.go.id/publicbull.php
Email : inartsp@bmkg.go.id
monitrtwp@bmkg.go.id

END OF NOTIFICATION MESSAGE
--------------------------------------------------------------

2025-11-09 08:17 message from NTWC link

Key information extracted from original GTS message :

Evaluation

There is no TSUNAMI danger for the u s west coast BRITISH columbia or alaska
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 :

WEAK53 PAAQ 090816
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
1216 AM PST Sun Nov 9 2025

...THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA, BRITISH
COLUMBIA, WASHINGTON, OREGON AND CALIFORNIA...

EVALUATION
----------
* There is no tsunami danger for the U.S. West Coast, British
Columbia, or Alaska.

* 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 6.7
* Origin Time 2304 AKST Nov 08 2025
0004 PST Nov 09 2025
0804 UTC Nov 09 2025
* Coordinates 39.4 North 143.5 East
* Depth 6 miles
* Location off the east coast of Honshu, Japan

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

* Pacific coastal regions outside California, Oregon, Washington,
British Columbia, and Alaska 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.

$$

2025-11-09 08:17 link

Original Message :

WEIO20 DEMS 090814
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER INDIA (ITEWC)
ISSUED AT 0814 UTC SUNDAY 09 NOVEMBER 2025
---------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES (NTWC)
FROM: IOTWMS-TSP INDIA
NOTIFICATION:
IOTWMS-TSP INDIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 1
FOR THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:
Magnitude : 6.5
Depth : 10.0
Date : 09 Nov 2025
Origin Time : 0803 UTC
Latitude : 39.52 N
Longitude : 143.30 E
Location : Off East Coast of Honshu, Japan
TO VIEW THE BULLETIN GO TO THE IOTWMS-TSP INDIA WEBSITE AT:
https://tsunami.incois.gov.in/TEWS/displaybulletinslatest.jsp?type=TSP&eventId=incois2025vyqx&aos=
exchange&currBullNo=1&latestBullNo=1
NOTE: THIS IS A RESTRICTED-ACCESS WEBSITE CONTAINING TECHNICAL DATA
FOR INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES ONLY. IT IS NOT
FOR GENERAL PUBLIC ACCESS.
GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:
INDIAN TSUNAMI EARLY WARNING CENTRE (ITEWC)
INDIAN NATIONAL CENTRE FOR OCEAN INFORMATION SERVICES (INCOIS)
ADDRESS:OCEAN VALLEY, PRAGATHI NAGAR (BO), NIZAMPET (SO),
HYDERABAD - 500 090, INDIA
PHONE: 91-40-23895011
FAX: 91-40-23895012
EMAIL: tsunami@incois.gov.in
WEB: https://tsunami.incois.gov.in/TEWS/TSP
END OF NOTIFICATION MESSAGE
---------------------------------------------------------------------

2025-11-09 08:16 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 6.7 occurred off the east coast of honshu JAPAN at 0804 UTC on sunday NOVEMBER 9 2025
Based on all available data there is no TSUNAMI threat from this earthquake

Original Message :

WEPA42 PHEB 090815
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
0815 UTC SUN NOV 9 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 - FROM JMA
--------------------------------------------

* MAGNITUDE 6.7
* ORIGIN TIME 0804 UTC NOV 9 2025
* COORDINATES 39.4 NORTH 143.5 EAST
* DEPTH 10 KM / 6 MILES
* LOCATION OFF THE EAST COAST OF HONSHU JAPAN

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.7 OCCURRED
OFF THE EAST COAST OF HONSHU, JAPAN AT 0804 UTC ON SUNDAY
NOVEMBER 9 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.

$$

2025-11-09 08:15 link

Original Message :

WEIO24 AMMC 090813
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 0813 UTC SUNDAY 09 NOVEMBER 2025
---------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES [NTWC]
FROM: IOTWMS-TSP AUSTRALIA

NOTIFICATION:
IOTWMS-TSP AUSTRALIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 1 FOR
THE INDIAN OCEAN, BASED ON AN EARTHQUAKE WITH THE FOLLOWING DETAILS:

MAGNITUDE: 6.7 Mw[Mwp]
DEPTH: 2 km
DATE: 09 Nov 2025
ORIGIN TIME: 0803 UTC
LATITUDE: 39.37N
LONGITUDE: 143.48E
LOCATION: Off East Coast of Honshu, Japan

TO VIEW THE BULLETIN GO TO THE IOTWMS-TSP AUSTRALIA WEBSITE AT:

http://reg.bom.gov.au/tsunami/rtsp

NOTE: THIS IS A RESTRICTED-ACCESS WEBSITE CONTAINING TECHNICAL DATA
FOR INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES ONLY. IT IS NOT
FOR GENERAL PUBLIC ACCESS.

GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:

JOINT AUSTRALIAN TSUNAMI WARNING CENTRE [JATWC]
BUREAU OF METEOROLOGY
MELBOURNE, AUSTRALIA
http://www.bom.gov.au/tsunami

END OF NOTIFICATION MESSAGE
---------------------------------------------------------------------

2025-11-09 08:13 message from JMA link

Original Message :

WEPA40 RJTD 090812
TSUNAMI BULLETIN ISSUED BY JMA AT 0812Z 9 NOV

ORIGIN TIME 0803Z 9 NOV
PRELIMINARY EPICENTER LAT 39.4 N. LON 143.5 E.
E OFF NORTHERN HONSHU
FOCAL DEPTH 10 KM MAG 6.7

TSUNAMI ADVISORIES ARE IN EFFECT
FOR THE FOLLOWING COASTAL AREAS OF JAPAN:
PACIFIC COASTS OF NORTH JAPAN
=

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.