5.1

M5.1 Earthquake 287 km SSE of Port Blair, IndiaJuly 7, 2025

2025-07-07 10:16:02 UTC (2025-07-07) · approx. 4:16 PM UTC+6 local

MagnitudeM5.1(mb)
Time10:16 UTC4:16 PM UTC+6
Depth10.0 kmshallow crustal
Coordinates9.372°, 93.975°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 7, 2025 at 10:16 UTC, a magnitude 5.1 shallow crustal earthquake struck 287 km SSE of Port Blair, India, at a depth of 10.0 km and coordinates 9.3716°, 93.9749°. This earthquake was detected by 93 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 9.37°, 93.97°

Earthquake Details

Magnitude
5.1 mb
Depth
10.0 km
shallow crustal
Location
9.3716°N
93.9749°E

Technical Information

Event ID
us7000qb4a
Event Type
earthquake
Status
✓ Reviewed
Significance
400
Stations Used
93
Azimuthal Gap
28.0°
Min Station Distance
5.612°
RMS Residual
0.99 sec
Last Updated
2025-09-12 16:23:10 UTC

Common Questions

How strong was the magnitude 5.1 earthquake near Port Blair, India?

The magnitude 5.1 earthquake that struck 287 km SSE of Port Blair, India on July 7, 2025 at 10:16 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 9.3716°, 93.9749°, which is 287 km SSE of Port Blair, India.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000qb4a). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, July 7, 2025). M5.1 Earthquake 287 km SSE of Port Blair, IndiaJuly 7, 2025. Retrieved September 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qb4a/