M4.9 Earthquake 286 km SSE of Port Blair, India — July 7, 2025
2025-07-07 09:42:36 UTC (2025-07-07) · approx. 3:42 PM UTC+6 local
On July 7, 2025 at 09:42 UTC, a magnitude 4.9 shallow crustal earthquake struck 286 km SSE of Port Blair, India, at a depth of 10.0 km and coordinates 9.3132°, 93.8317°. This earthquake was detected by 72 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
93.8317°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Port Blair, India?
The magnitude 4.9 earthquake that struck 286 km SSE of Port Blair, India on July 7, 2025 at 09:42 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 9.3132°, 93.8317°, which is 286 km SSE of Port Blair, India.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us7000qb45). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, July 7, 2025). M4.9 Earthquake 286 km SSE of Port Blair, India — July 7, 2025. Retrieved September 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qb45/