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TSP-InaTEWS-20251025-1700-003
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PUBLIC TSUNAMI BULLETIN NUMBER 3 
IOTWMS TSUNAMI SERVICE PROVIDER INDONESIA (InaTEWS-BMKG)
issued at 1700 UTC, Oct 25, 2025
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... CONFIRMED TSUNAMI THREAT IN THE INDIAN OCEAN ...

This bulletin applies to areas within and bordering the Indian Ocean.
It is issued in support of the UNESCO/IOC Indian Ocean Tsunami
Warning and Mitigation System (IOTWMS).

1. TSUNAMI SOURCE INFORMATION
IOTWMS-TSP INDONESIA has detected a volcanic eruption with the
following details:

Date            : 25 Oct 2025
Origin Time     : 1400 UTC
Latitude        : 12.92S
Longitude       : 45.72E
Location        : FANI MAORE VOLCANO

2. EVALUATION
Sea level observations have confirmed that a TSUNAMI WAS GENERATED and
there MAY BE A THREAT TO SOME INDIAN OCEAN COUNTRIES.

Maximum wave amplitudes observed so far:

LOCATION       COUNTRIES      LAT    LON      TIME(UTC) DATE          AMPL(m) 
-----------------------------------------------------------------------------
Dzaoudzi       COMOROS	      12.80S 45.25E   1404z     25 Oct 2025	3.66m
Comoros	       COMOROS	      11.42S 43.41E   1407z     25 Oct 2025	4.19m
Mombasa	       KENYA           4.02S 39.74E   1444z     25 Oct 2025	2.84m
Aden	       YEMEN	      12.74N 45.07E   1539z     25 Oct 2025	1.33m
Diego Garcia   UNITED KINGDOM  7.33S 72.41E   1617z     25 Oct 2025	0.87m
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3. ADVICE
This bulletin is being issued as advice. Only national/state/local
authorities and disaster management officers have the authority to
make decisions regarding the official threat and warning status in
their coastal areas and any action to be taken in response.

For more detailed information, please refer to the tsunami advisory
bulletins issued by the National Tsunami Warning Centres (NTWCs) of
IOTWMS member states. The tsunami warning status reported by NTWCs for
their countries can be found at:   
http://www.incois.gov.in/Incois/tsunami/NTWCFeedbackStatus.jsp

4. UPDATES
Additional bulletins will be issued by IOTWMS-TSP INDONESIA for this event as
more information becomes available.

Other IOTWMS-TSPs may issue additional information at:
IOTWS-TSP AUSTRALIA:  http://www.bom.gov.au/tsunami/iotws/
IOTWS-TSP INDIA    :  http://www.incois.gov.in/Incois/tsunami/eqevents.jsp

5. CONTACT INFORMATION
IOTWMS-TSP INDONESIA:
THE AGENCY FOR METEOROLOGY CLIMATOLOGY AND GEOPHYSICS (BMKG)
InaTEWS - Indonesian Tsunami Early Warning System
Address: Jl. Angkasa I no.2 Kemayoran, Jakarta, Indonesia, 10720
Tel.: +62 (21) 4246321/6546316
Fax: +62 (21) 6546316/4246703
P.O. Box 3540 Jakarta
Website:  https://www.bmkg.go.id
          https://inatews.bmkg.go.id
E-Mail:   inartsp@bmkg.go.id
          monitrtwp@bmkg.go.id

6. TSUNAMI WARNING SYSTEMS OUTSIDE THE INDIAN OCEAN
Pacific Tsunami Warning and Mitigation System (PTWS):
----------------------------------------------------
Pacific Tsunami Warning Centre (PTWC)
http://ptwc.weather.gov/

North West Pacific Tsunami Advisory Centre (NWPTAC)
http://www.jma.go.jp/en/tsunami/

US National Tsunami Warning Centre (US NTWC)
http://wcatwc.arh.noaa.gov/

Joint Australian Tsunami Warning Centre (JATWC)
http://www.bom.gov.au/tsunami/


Northeast Atlantic, Mediterranean and Connected Seas (NEAMTWS):
--------------------------------------------------------------
French National Tsunami Warning Centre (CENALT)
http://www.info-tsunami.fr

Institute of Geodynamics, National Observatory of Athens
http://www.gein.noa.gr/en/

Kandilli Observatory and Earthquake Research Institute, Turkey
http://www.koeri.boun.edu.tr/2/en/


Caribbean and Adjacent Regions (CARIBE EWS):
-------------------------------------------
Pacific Tsunami Warning Centre (PTWC)
http://ptwc.weather.gov/

END OF BULLETIN
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TEST TEST TEST TEST TEST IOWave-Oct-2025  TEST TEST TEST TEST TEST TEST TEST
TEST TEST TEST TEST TEST IOWave-Oct-2025  TEST TEST TEST TEST TEST TEST TEST