WEIO21 DEMS 270547
--------------------------------------------------------------------------------
PUBLIC TSUNAMI BULLETIN NUMBER 3
IOTWMS TSUNAMI SERVICE PROVIDER INDIA (ITEWC)
issued at 0547 UTC Thursday 27 November 2025
--------------------------------------------------------------------------------
... NO TSUNAMI THREAT IN THE INDIAN OCEAN ...
This bulletin applies to areas within and bordering the Indian Ocean
and is issued by Tsunami Service Provider INDIA in support of the
UNESCO/IOC Indian Ocean Tsunami Warning and Mitigation System (IOTWMS).
1. EARTHQUAKE INFORMATION
IOTWMS-TSP INDIA has detected an earthquake with the following
preliminary information:
Magnitude : 6.5 M
Depth : 10 km
Date : 27 Nov 2025
Origin Time: 0456UTC
Latitude : 2.79 N
Longitude : 95.95 E
Location : Off West Coast of Northern Sumatra
2. EVALUATION
Based on pre-run model scenarios, there is NO THREAT to countries in
the Indian Ocean. No further bulletins will be issued unless the
situation changes.
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
Indian Ocean countries. 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
No further bulletins will be issued by IOTWMS-TSP INDIA for this event unless
other information becomes available.
Other IOTWMS-TSPs may issue additional information at:
IOTWMS-TSP AUSTRALIA: http://www.bom.gov.au/tsunami/iotws/
IOTWMS-TSP INDONESIA: http://rtsp.bmkg.go.id
5. CONTACT INFORMATION
IOTWMS-TSP INDIA:
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
Tel: 91-40-23895011
Fax: 91-40-23895012
Email: tsunami@incois.gov.in
Website: www.incois.gov.in
6. TSUNAMI WARNING SYSTEMS OUTSIDE THE INDIAN OCEAN
Pacific Tsunami Warning and Mitigation System (PTWS):
----------------------------------------------------
Pacific Tsunami Warning Centre (PTWC)
https://www.tsunami.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)
https://www.tsunami.gov/
END OF BULLETIN
--------------------------------------------------------------------------------
Wednesday, November 26, 2025
[Tsunami Message - IOC] IOTWMS TSP-INDIA PUBLIC bulletin for 6.5 Earthquake at Off West Coast of Northern Sumatra
WEIO21 DEMS 270521
--------------------------------------------------------------------------------
PUBLIC TSUNAMI BULLETIN NUMBER 2
IOTWMS TSUNAMI SERVICE PROVIDER INDIA (ITEWC)
issued at 0521 UTC Thursday 27 November 2025
--------------------------------------------------------------------------------
... POTENTIAL TSUNAMI THREAT IN THE INDIAN OCEAN ...
This bulletin applies to areas within and bordering the Indian Ocean
and is issued by Tsunami Service Provider INDIA in support of the
UNESCO/IOC Indian Ocean Tsunami Warning and Mitigation System (IOTWMS).
1. EARTHQUAKE INFORMATION
IOTWMS-TSP INDIA has detected an earthquake with the following
preliminary information:
Magnitude : 6.5 M
Depth : 10 km
Date : 27 Nov 2025
Origin Time: 0456UTC
Latitude : 2.79 N
Longitude : 95.95 E
Location : Off West Coast of Northern Sumatra
2. EVALUATION
Based on pre-run model scenarios, there is a POTENTIAL TSUNAMI THREAT
to countries in the Indian Ocean.
IOTWMS-TSP INDIA will monitor sea level gauges and report if any tsunami
wave activity has occurred.
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
Indian Ocean countries. 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 INDIA for this event as
more information becomes available.
Other IOTWMS-TSPs may issue additional information at:
IOTWMS-TSP AUSTRALIA: http://www.bom.gov.au/tsunami/iotws/
IOTWMS-TSP INDONESIA: http://rtsp.bmkg.go.id
5. CONTACT INFORMATION
IOTWMS-TSP INDIA:
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
Tel: 91-40-23895011
Fax: 91-40-23895012
Email: tsunami@incois.gov.in
Website: www.incois.gov.in
6. TSUNAMI WARNING SYSTEMS OUTSIDE THE INDIAN OCEAN
Pacific Tsunami Warning and Mitigation System (PTWS):
----------------------------------------------------
Pacific Tsunami Warning Centre (PTWC)
https://www.tsunami.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)
https://www.tsunami.gov/
END OF BULLETIN
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
PUBLIC TSUNAMI BULLETIN NUMBER 2
IOTWMS TSUNAMI SERVICE PROVIDER INDIA (ITEWC)
issued at 0521 UTC Thursday 27 November 2025
--------------------------------------------------------------------------------
... POTENTIAL TSUNAMI THREAT IN THE INDIAN OCEAN ...
This bulletin applies to areas within and bordering the Indian Ocean
and is issued by Tsunami Service Provider INDIA in support of the
UNESCO/IOC Indian Ocean Tsunami Warning and Mitigation System (IOTWMS).
1. EARTHQUAKE INFORMATION
IOTWMS-TSP INDIA has detected an earthquake with the following
preliminary information:
Magnitude : 6.5 M
Depth : 10 km
Date : 27 Nov 2025
Origin Time: 0456UTC
Latitude : 2.79 N
Longitude : 95.95 E
Location : Off West Coast of Northern Sumatra
2. EVALUATION
Based on pre-run model scenarios, there is a POTENTIAL TSUNAMI THREAT
to countries in the Indian Ocean.
IOTWMS-TSP INDIA will monitor sea level gauges and report if any tsunami
wave activity has occurred.
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
Indian Ocean countries. 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 INDIA for this event as
more information becomes available.
Other IOTWMS-TSPs may issue additional information at:
IOTWMS-TSP AUSTRALIA: http://www.bom.gov.au/tsunami/iotws/
IOTWMS-TSP INDONESIA: http://rtsp.bmkg.go.id
5. CONTACT INFORMATION
IOTWMS-TSP INDIA:
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
Tel: 91-40-23895011
Fax: 91-40-23895012
Email: tsunami@incois.gov.in
Website: www.incois.gov.in
6. TSUNAMI WARNING SYSTEMS OUTSIDE THE INDIAN OCEAN
Pacific Tsunami Warning and Mitigation System (PTWS):
----------------------------------------------------
Pacific Tsunami Warning Centre (PTWC)
https://www.tsunami.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)
https://www.tsunami.gov/
END OF BULLETIN
--------------------------------------------------------------------------------
TSR Storm Alert - Tropical Storm FIVE
N Indian Ocean: Storm Alert issued at 27 Nov, 2025 0:00 GMT
Tropical Storm FIVE is currently located near 6.6 N 81.2 E with maximum 1-min sustained winds of 35kts (40 mph). FIVE is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
Sri Lanka
probability for TS is 100% currently
India
probability for TS is 85% in about 48 hours
Yellow Alert City(s) and Town(s)
Batticaloa (7.7 N, 81.7 E)
probability for TS is 100% currently
Colombo (6.9 N, 80.0 E)
probability for TS is 100% currently
Galle (6.0 N, 80.2 E)
probability for TS is 100% currently
Trincomalee (8.6 N, 81.2 E)
probability for TS is 95% currently
Jaffna (9.7 N, 80.0 E)
probability for TS is 90% in about 36 hours
Rameswaram (9.3 N, 79.3 E)
probability for TS is 80% in about 36 hours
Nagappattinam (10.8 N, 79.8 E)
probability for TS is 75% in about 48 hours
Pondicherry (11.9 N, 79.8 E)
probability for TS is 65% in about 72 hours
Madras (13.1 N, 80.2 E)
probability for TS is 60% in about 72 hours
Note that
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
CAT 1 means Severe Cyclonic Storm strength winds of at least 74 mph, 119 km/h or 64 knots 1-min sustained.
TS means Tropical Storm strength winds of at least 39 mph, 63 km/h or 34 knots 1-min sustained.
Please note: This is a no reply e-mail address which cannot receive mail. For assistance and enquiries please contact TSRenquiries@tropicalstormrisk.com
For graphical forecast information and further details please visit https://www.tropicalstormrisk.com/
To change your TSR Email Alert registration details please contact TSRenquiries@tropicalstormrisk.com
To unsubscribe from the TSR Email Alert please use the online form here.
This alert is provided by Tropical Storm Risk (TSR).
TSR Storm Alert - Tropical Depression SENYAR
N Indian Ocean: Storm Alert issued at 26 Nov, 2025 18:00 GMT
Tropical Depression SENYAR is currently located near 3.6 N 99.9 E with maximum 1-min sustained winds of 30kts (35 mph). SENYAR is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
Malaysia
probability for TS is 55% in about 24 hours
Note that
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
CAT 1 means Severe Cyclonic Storm strength winds of at least 74 mph, 119 km/h or 64 knots 1-min sustained.
TS means Tropical Storm strength winds of at least 39 mph, 63 km/h or 34 knots 1-min sustained.
Please note: This is a no reply e-mail address which cannot receive mail. For assistance and enquiries please contact TSRenquiries@tropicalstormrisk.com
For graphical forecast information and further details please visit https://www.tropicalstormrisk.com/
To change your TSR Email Alert registration details please contact TSRenquiries@tropicalstormrisk.com
To unsubscribe from the TSR Email Alert please use the online form here.
This alert is provided by Tropical Storm Risk (TSR).
TSR Storm Alert - Tropical Storm SENYAR
N Indian Ocean: Storm Alert issued at 26 Nov, 2025 12:00 GMT
Tropical Storm SENYAR is currently located near 3.7 N 98.6 E with maximum 1-min sustained winds of 35kts (40 mph). SENYAR is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
Indonesia
probability for TS is 90% currently
Yellow Alert City(s) and Town(s)
Medan (3.6 N, 98.7 E)
probability for TS is 90% currently
Note that
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
CAT 1 means Severe Cyclonic Storm strength winds of at least 74 mph, 119 km/h or 64 knots 1-min sustained.
TS means Tropical Storm strength winds of at least 39 mph, 63 km/h or 34 knots 1-min sustained.
Please note: This is a no reply e-mail address which cannot receive mail. For assistance and enquiries please contact TSRenquiries@tropicalstormrisk.com
For graphical forecast information and further details please visit https://www.tropicalstormrisk.com/
To change your TSR Email Alert registration details please contact TSRenquiries@tropicalstormrisk.com
To unsubscribe from the TSR Email Alert please use the online form here.
This alert is provided by Tropical Storm Risk (TSR).
TSR Storm Alert - Tropical Storm SENYAR
N Indian Ocean: Storm Alert issued at 26 Nov, 2025 6:00 GMT
Tropical Storm SENYAR is currently located near 3.9 N 98.2 E with maximum 1-min sustained winds of 35kts (40 mph). SENYAR is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
Indonesia
probability for TS is 95% currently
Yellow Alert City(s) and Town(s)
Medan (3.6 N, 98.7 E)
probability for TS is 70% in about 24 hours
Note that
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
CAT 1 means Severe Cyclonic Storm strength winds of at least 74 mph, 119 km/h or 64 knots 1-min sustained.
TS means Tropical Storm strength winds of at least 39 mph, 63 km/h or 34 knots 1-min sustained.
Please note: This is a no reply e-mail address which cannot receive mail. For assistance and enquiries please contact TSRenquiries@tropicalstormrisk.com
For graphical forecast information and further details please visit https://www.tropicalstormrisk.com/
To change your TSR Email Alert registration details please contact TSRenquiries@tropicalstormrisk.com
To unsubscribe from the TSR Email Alert please use the online form here.
This alert is provided by Tropical Storm Risk (TSR).
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