M4.9 Earthquake 149 km SSE of Port Blair, India — August 11, 2026
2026-08-11 19:55:41 UTC (2 hours ago) · approx. 1:55 AM UTC+6 local
On August 11, 2026 at 19:55 UTC, a magnitude 4.9 intermediate depth earthquake struck 149 km SSE of Port Blair, India, at a depth of 113.5 km and coordinates 10.5351°, 93.4884°. This earthquake was detected by 67 seismic stations with excellent 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
93.4884°E
Technical Information
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Common Questions
How strong was the magnitude 4.9 earthquake near Port Blair, India?
The magnitude 4.9 earthquake that struck 149 km SSE of Port Blair, India on August 11, 2026 at 19:55 UTC had a depth of 113.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 10.5351°, 93.4884°, which is 149 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.
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Location
Authoritative source: USGS event page (event ID: us6000tk1m). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 11, 2026). M4.9 Earthquake 149 km SSE of Port Blair, India — August 11, 2026. Retrieved August 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tk1m/