M5.7 Earthquake 247 km E of Port Blair, India — July 17, 2020
2020-07-17 18:32:58 UTC (2020-07-17) · approx. 12:32 AM UTC+6 local
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On July 17, 2020 at 18:32 UTC, a magnitude 5.7 shallow crustal earthquake struck 247 km E of Port Blair, India, at a depth of 5.1 km and coordinates 12.0979°, 94.9745°. The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected.
Physical scale: An earthquake of magnitude 5.7 releases seismic energy equivalent to roughly 5 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 5.2 km — a useful intuition for the size of the slip patch on the fault.
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Earthquake Details
94.9745°E
Technical Information
Common Questions
How strong was the magnitude 5.7 earthquake near Port Blair, India?
The magnitude 5.7 earthquake that struck 247 km E of Port Blair, India on July 17, 2020 at 18:32 UTC had a depth of 5.1 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 12.0979°, 94.9745°, which is 247 km E of Port Blair, India.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.7 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us7000aqj0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, July 17, 2020). M5.7 Earthquake 247 km E of Port Blair, India — July 17, 2020. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000aqj0/