M4.9 Earthquake 88 km SSE of Port Blair, India — November 1, 2023
2023-11-01 12:51:15 UTC (2023-11-01) · approx. 6:51 PM UTC+6 local
Felt by 3 people across nearby locations.
On November 1, 2023 at 12:51 UTC, a magnitude 4.9 intermediate depth earthquake struck 88 km SSE of Port Blair, India, at a depth of 93.3 km and coordinates 10.9291°, 93.0630°. This earthquake was detected by 160 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 371, 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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 3 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
93.0630°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Port Blair, India?
The magnitude 4.9 earthquake that struck 88 km SSE of Port Blair, India on November 1, 2023 at 12:51 UTC had a depth of 93.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 10.9291°, 93.0630°, which is 88 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: us7000l828). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 1, 2023). M4.9 Earthquake 88 km SSE of Port Blair, India — November 1, 2023. Retrieved January 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000l828/