Overall Green Earthquake alert Off-shore on 28 Jul 2025 22:10 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 6.9 Off-shore on 28 Jul 2025 22:10 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)

28/07 22:25 WEAK53PAAQ282223

28/07 22:24 WEGM42PHEB282222

28/07 22:24 WEZS42PHEB282222

28/07 22:22 WEHW42PHEB282222

28/07 22:22 WEPA42PHEB282221

28/07 22:21 WEIO24AMMC282220

28/07 22:19 WEIO22WIIX282219

2025-07-28 22:25 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 282223
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
323 PM PDT Mon Jul 28 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 7.0
* Origin Time 1411 AKDT Jul 28 2025
1511 PDT Jul 28 2025
2211 UTC Jul 28 2025
* Coordinates 57.8 South 157.2 East
* Depth 6 miles
* Location in the Macquarie Islands region, south of New
Zealand

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.

$$

2025-07-28 22:24 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.0 occurred in the macquarie ISLANDS region at 811 am chst on tuesday JULY 29 2025
Based on all available data there is no TSUNAMI threat to guam rota tinian or saipan from this earthquake

Original Message :

WEGM42 PHEB 282222
TIBGUM

GUZ001>004-290022-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
822 AM CHST TUE JUL 29 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 7.0 OCCURRED IN
THE MACQUARIE ISLANDS REGION AT 811 AM CHST ON TUESDAY JULY
29 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 7.0
* ORIGIN TIME 811 AM CHST JUL 29 2025
* COORDINATES 57.8 SOUTH 157.2 EAST
* DEPTH 6 MILES
* LOCATION MACQUARIE ISLAND REGION

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.

$$

2025-07-28 22:24 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.0 occurred in the macquarie ISLANDS region at 1111 am sst on monday JULY 28 2025
Based on all available data there is no TSUNAMI threat to AMERICAN SAMOA from this earthquake

Original Message :

WEZS42 PHEB 282222
TIBPPG

ASZ001>004-290022-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1122 AM SST MON JUL 28 2025

...NO TSUNAMI THREAT FROM A DISTANT EARTHQUAKE...

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

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.0 OCCURRED IN
THE MACQUARIE ISLANDS REGION AT 1111 AM SST ON MONDAY JULY
28 2025.

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

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

* NO ACTION IS REQUIRED.

POTENTIAL IMPACTS
-----------------

* NO TSUNAMI IMPACTS ARE EXPECTED.

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

* MAGNITUDE 7.0
* ORIGIN TIME 1111 AM SST JUL 28 2025
* COORDINATES 57.8 SOUTH 157.2 EAST
* DEPTH 6 MILES
* LOCATION MACQUARIE ISLAND REGION

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.

$$

2025-07-28 22:22 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Based on all available data a destructive pacific-wide TSUNAMI is not expected and there is no TSUNAMI threat to hawaii
Repeat
A destructive pacific-wide TSUNAMI is not expected and there is no TSUNAMI threat to hawaii
This will be the only statement issued for this event unless additional data are received

Original Message :

WEHW42 PHEB 282222
TIBHWX

HIZ001-003-006>007-009-016>018-023-026-029>035-037>050-051>054-
290022-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1222 PM HST MON JUL 28 2025

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - TSUNAMI INFORMATION STATEMENT

THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1211 PM HST 28 JUL 2025
COORDINATES - 57.8 SOUTH 157.2 EAST
LOCATION - MACQUARIE ISLAND REGION
MAGNITUDE - 7.0 MOMENT

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO
TSUNAMI THREAT TO HAWAII.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.

$$

2025-07-28 22:22 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.0 occurred in the macquarie ISLANDS region at 2211 UTC on monday JULY 28 2025
Based on all available data there is no TSUNAMI threat from this earthquake

Original Message :

WEPA42 PHEB 282221
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
2221 UTC MON JUL 28 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 7.0
* ORIGIN TIME 2211 UTC JUL 28 2025
* COORDINATES 57.8 SOUTH 157.2 EAST
* DEPTH 10 KM / 6 MILES
* LOCATION MACQUARIE ISLAND REGION

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.0 OCCURRED IN
THE MACQUARIE ISLANDS REGION AT 2211 UTC ON MONDAY JULY 28
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.

$$

2025-07-28 22:21 link

Original Message :

WEIO24 AMMC 282220
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 2220 UTC MONDAY 28 JULY 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: 6.8 Mw[Mwp]
DEPTH: 10 km
DATE: 28 Jul 2025
ORIGIN TIME: 2210 UTC
LATITUDE: 57.56S
LONGITUDE: 157.36E
LOCATION: Macquarie Island Region

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

2025-07-28 22:19 link

Original Message :

WEIO22 WIIX 282219
TSP-InaTEWS-20250728-2219-001
--------------------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER INDONESIA (InaTEWS-BMKG)
issued at 2219 UTC, Jul 28, 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 : 6.7 Mwp
Depth : 10km
Date : 28 Jul 2025
Origin Time: 22:10:31 UTC
Latitude : 57.91S
Longitude : 157.30E
Location : Macquarie Island Region

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

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