M4.6 Earthquake 170 km SE of Port Blair, India — April 8, 2026
2026-04-08 22:13:51 UTC (2026-04-08) · approx. 4:13 AM UTC+6 local
On April 8, 2026 at 22:13 UTC, a magnitude 4.6 shallow crustal earthquake struck 170 km SE of Port Blair, India, at a depth of 10.0 km and coordinates 10.4649°, 93.7220°. This earthquake was detected by 58 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
93.7220°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake near Port Blair, India?
The magnitude 4.6 earthquake that struck 170 km SE of Port Blair, India on April 8, 2026 at 22:13 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 10.4649°, 93.7220°, which is 170 km SE of Port Blair, India.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us6000snkz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, April 8, 2026). M4.6 Earthquake 170 km SE of Port Blair, India — April 8, 2026. Retrieved May 13, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000snkz/