Photo Credit: CNBC TV 18
Port Blair, June 25, 2025 – A mild earthquake today struck the Andaman Sea, causing light tremors early Wednesday morning but resulting in no reported damage or casualties. According to the National Centre for Seismology (NCS), the tremors of 4.2 magnitude were recorded at 1:43 AM IST, and were shallow in depth, typical of seismic activity in the region.
Seismic Details: Epicentre and Depth
The epicentre of the earthquake was located at a latitude of 9.46° North and a longitude of 94.07° East, approximately 139 kilometers northeast of the Nicobar Islands. The tremor originated at a depth of about 20 kilometers beneath the sea floor. While classified as a minor earthquake, such shallow quakes are often perceptible and can occasionally cause minor disturbances.
The earthquake today did not trigger any tsunami alerts, and no aftershocks have been reported at the time of writing. However, authorities have advised continued monitoring due to the seismic sensitivity of the area.
No Damage or Injuries, Say Officials
Officials in Port Blair and other parts of the Andaman and Nicobar Islands confirmed that there were no immediate reports of structural damage or injuries. Local residents in some coastal areas reportedly felt mild tremors, but there was no panic or disruption to public services.
Disaster response teams and the local administration conducted precautionary checks on essential infrastructure such as bridges, coastal buildings, and older structures. No abnormalities were found, and regular activity resumed shortly after.
Part of a Larger Seismic Pattern
The Andaman Sea lies along the Sunda Trench, one of the world’s most active seismic zones. This area marks the boundary where the Indian Plate subducts beneath the Burma Plate, resulting in frequent undersea earthquakes. The region has a history of significant seismic events, including the devastating 2004 Indian Ocean tsunami, which was triggered by a massive earthquake off the Sumatra coast.
Though the tremors of 4.2 magnitude today were minor in comparison, they are part of a broader seismic pattern that requires consistent monitoring. Earthquakes in this region, even at lower magnitudes, are a reminder of the geological volatility in the Bay of Bengal and surrounding areas.
Authorities Advise Caution, Not Alarm
Seismologists have emphasized that while the earthquake today was not destructive, residents should remain informed and prepared for the possibility of future tremors. Earthquakes of this magnitude are generally harmless but can occasionally lead to minor aftershocks or trigger anxiety, especially in coastal regions.
Authorities have urged residents to stay calm and follow basic safety protocols during tremors. This includes securing heavy furniture, identifying safe spots indoors, and having emergency kits ready. Schools and government buildings are expected to carry out routine safety checks as a precautionary measure.
Preparedness is Key in Seismic Zones
The incident has once again highlighted the importance of earthquake preparedness in vulnerable regions like the Andaman Sea. While the tremors were mild and caused no disruption, experts believe that early detection systems, public awareness, and emergency drills play a crucial role in minimizing risks.
The National Disaster Management Authority (NDMA) and local district administrations are expected to conduct awareness drives and review existing disaster response plans in the coming weeks. These efforts are aimed at strengthening the region’s resilience against future seismic events.
A Gentle Reminder, Not a Red Alert
The tremors of 4.2 magnitude that struck the Andaman Sea today may not have caused visible damage, but they serve as a gentle reminder of nature’s unpredictability. For the residents of the islands and nearby coastal regions, remaining vigilant and prepared remains the best line of defense against the forces beneath the earth.
As monitoring continues, scientists will analyze the event further to understand whether it fits into a larger seismic trend or was an isolated geological release. Until then, authorities and communities remain alert but calm.Port Blair, June 25, 2025 – A mild earthquake today struck the Andaman Sea, causing light tremors early Wednesday morning but resulting in no reported damage or casualties. According to the National Centre for Seismology (NCS), the tremors of 4.2 magnitude were recorded at 1:43 AM IST, and were shallow in depth, typical of seismic activity in the region.
Seismic Details: Epicentre and Depth
The epicentre of the earthquake was located at a latitude of 9.46° North and a longitude of 94.07° East, approximately 139 kilometers northeast of the Nicobar Islands. The tremor originated at a depth of about 20 kilometers beneath the sea floor. While classified as a minor earthquake, such shallow quakes are often perceptible and can occasionally cause minor disturbances.
The earthquake today did not trigger any tsunami alerts, and no aftershocks have been reported at the time of writing. However, authorities have advised continued monitoring due to the seismic sensitivity of the area.
No Damage or Injuries, Say Officials
Officials in Port Blair and other parts of the Andaman and Nicobar Islands confirmed that there were no immediate reports of structural damage or injuries. Local residents in some coastal areas reportedly felt mild tremors, but there was no panic or disruption to public services.
Disaster response teams and the local administration conducted precautionary checks on essential infrastructure such as bridges, coastal buildings, and older structures. No abnormalities were found, and regular activity resumed shortly after.
Part of a Larger Seismic Pattern
The Andaman Sea lies along the Sunda Trench, one of the world’s most active seismic zones. This area marks the boundary where the Indian Plate subducts beneath the Burma Plate, resulting in frequent undersea earthquakes. The region has a history of significant seismic events, including the devastating 2004 Indian Ocean tsunami, which was triggered by a massive earthquake off the Sumatra coast.
Though the tremors of 4.2 magnitude today were minor in comparison, they are part of a broader seismic pattern that requires consistent monitoring. Earthquakes in this region, even at lower magnitudes, are a reminder of the geological volatility in the Bay of Bengal and surrounding areas.
Authorities Advise Caution, Not Alarm
Seismologists have emphasized that while the earthquake today was not destructive, residents should remain informed and prepared for the possibility of future tremors. Earthquakes of this magnitude are generally harmless but can occasionally lead to minor aftershocks or trigger anxiety, especially in coastal regions.
Authorities have urged residents to stay calm and follow basic safety protocols during tremors. This includes securing heavy furniture, identifying safe spots indoors, and having emergency kits ready. Schools and government buildings are expected to carry out routine safety checks as a precautionary measure.
Preparedness is Key in Seismic Zones
The incident has once again highlighted the importance of earthquake preparedness in vulnerable regions like the Andaman Sea. While the tremors were mild and caused no disruption, experts believe that early detection systems, public awareness, and emergency drills play a crucial role in minimizing risks.
The National Disaster Management Authority (NDMA) and local district administrations are expected to conduct awareness drives and review existing disaster response plans in the coming weeks. These efforts are aimed at strengthening the region’s resilience against future seismic events.
A Gentle Reminder, Not a Red Alert
The tremors of 4.2 magnitude that struck the Andaman Sea today may not have caused visible damage, but they serve as a gentle reminder of nature’s unpredictability. For the residents of the islands and nearby coastal regions, remaining vigilant and prepared remains the best line of defense against the forces beneath the earth.
As monitoring continues, scientists will analyze the event further to understand whether it fits into a larger seismic trend or was an isolated geological release. Until then, authorities and communities remain alert but calm.
