On Sunday Afternoon a Significant M5.5 Earthquake struck in the Andaman Or Burma Sea 148km from Port Blair (India).

Written by Earthquakelist.org on November 9th, 2025. Last updated December 4th, 2025.

Around noon of Sunday November 9th, 2025, a significant MAG-5.5 earthquake hit in the Andaman Or Burma Sea 148 kilometer from Port Blair, India. Roughly 370 thousand people may have felt this earthquake.

Earthquake Summary

This earthquake hit under water in the Andaman Or Burma Sea, 90 kilometers (56 mi) off the coast of India, 148 kilometer north-east of Port Blair in Andaman and Nicobar. The center of this earthquake had an intermediate depth of 133 km.

Date and Time:	Nov 9, 2025 12:08 (Kolkata Time) - Nov 9, 2025 06:38 Universal Time.
Location:	148 km NE of Port Blair, Andaman and Nicobar, India. Coordinates 12°30'32"N 93°47'53"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.5 Detected by 23 stations. Maximum Error Range ±0.065 .
Depth:	133 km (83 mi) An intermediate depth.
Max. Intensity:	IV Light On the Modified Mercalli Scale.
Tsunami Risk:	Tsunami very unlikely Earthquakes under MAG-6.5 at depths deeper than 100km are very unlikely to cause tsunami's. Always stay cautious - More info here.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 370 thousand people exposed to shaking

The USGS has published a report estimating the number of people exposed to this earthquake. Acoording to their analysis, roughly 370 thousand have been exposed to shaking at an MMI level of II or higher.

Light shaking and likely no damage may have been experienced by an estimated 1,490 people. At IV, it is the highest MMI level this earthquake has caused. Intensity level III was experienced by the majority of people (around 360 thousand). In their region, weak shaking and probably no damage can be expected.

People in 2 countries have been exposed to shaking. In India , around 360 thousand people, with impact levels up to IV (light shaking, likely no damage). People were exposed to shaking in Myanmar as well.

People	MMI Level	Shaking	Damage
0	I	Not noticable	None
10	II	Very weak	None
364,100	III	Weak	Probably none
1,490	IV	Light	Likely none
0	V	Moderate	Very light
0	VI	Strong	Light
0	VII	Very Strong	Moderate
0	VIII	Severe	Moderate to heavy
0	IX	Violent	Heavy
0	X	Extreme	Very heavy

Nearby towns and cities

This earthquake may have been felt in India . The closest significant population center near the earthquake is Port Blair in Andaman and Nicobar, India. Port Blair is located 148 kilometer (92 mi) north-east of the epicenter. Port Blair experienced an earthquake intensity (MMI Scale) of roughly III. That level implies weak shaking and probably no damage.

Overview of nearby places

Cities and Towns around the epicenter of this earthquake.
Distance	Place	Intensity (MMI)
148 km (92 mi) SW from epicenter	Port Blair Andaman and Nicobar, India.	III Weak

Earthquake Intensity Map

The maximum intensity (MMI Scale) caused by this earthquake is IV. The map below shows in which areas this earthquake was the most and least impactful. It is based on data from the US Geographic Survey.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

Earthquake Intensity Map based on Shakemap Data provided by USGS.

Shaking reported by 3 people in 2 countries

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 3 people have reported shaking in 3 places in 2 countries (India, Thailand).We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

Bombūflat, Andaman and Nicobar Islands, India: 1 person.
Ban Bung, Chon Buri, Thailand: 1 person.
Port Blair, Andaman and Nicobar Islands, India: 1 person.

Risk of aftershocks?

We monitor for foreshocks or aftershocks that have a magnitude of 2.5+ and occur within 100km (62 mi) of the epicenter of this earthquake. So far no such earthquakes have been detected.

Earthquakes can create aftershocks. These are generally at least 1 magnitude lower than any main shock, and as time passes the chance and strength of aftershocks decreases.

It's always adviced to be cautious of the risk of a larger shock following any significant earthquake, however this risk is fairly small. There is a roughly 94 percent change that no larger main shock will follow in the days following this earthquake.

Read: How to Stay Safe during an Earthquake (cdc.gov).

Earthquakes like this are common in the region

Earthquakes of this strength occur quite regularly in the region. This is the strongest earthquake to hit since July 28th, 2023, when a 5.9 magnitude earthquake hit 221 km (137 mi) further south. An even stronger magnitude 6.1 earthquake struck on July 17th, 2020.

In total, 4 earthquakes with a magnitude of 5.5 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 3 years.

Tsunami very unlikely

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

For a serious tsunami to occur, earthquakes usually need to have a magnitude of at least 6.5 and occur at a shallow depth of maximum 100km. Neither are the case with this earthquake. However always stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Factor	Under Sea?	MAG-6.5 or stronger?	Shallow depth?
Explanation	Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami.	Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's.	Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor.
This Earthquake	This earthquake appears to have struck under the sea.	Not this earthquake. This earthquake had a magnitude of 5.5. Earthquakes of this strength are unlikely to trigger a tsunami.	Not this earthquake. This earthquake occurred at a depth of 133 km (83 mi). Earthquakes this deep in the earth are unlikely to trigger a tsunami.

Sources

Last updated 04/12/25 09:38 (). This article contains currently available information about the earthquake and is automatically composed. We continue to update this article up to a few days after the earthquake occurred.