4.7

M4.7 Earthquake 199 km SE of Port Blair, IndiaAugust 25, 2024

2024-08-25 09:21:25 UTC (2024-08-25) · approx. 3:21 PM UTC+6 local

MagnitudeM4.7(mb)
Time09:21 UTC3:21 PM UTC+6
Depth10.0 kmshallow crustal
Coordinates10.204°, 93.822°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 25, 2024 at 09:21 UTC, a magnitude 4.7 shallow crustal earthquake struck 199 km SE of Port Blair, India, at a depth of 10.0 km and coordinates 10.2045°, 93.8221°. This earthquake was detected by 25 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 10.20°, 93.82°

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
10.2045°N
93.8221°E

Technical Information

Event ID
us7000n9ak
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
25
Azimuthal Gap
164.0°
Min Station Distance
6.274°
RMS Residual
0.69 sec
Last Updated
2024-11-02 21:29:03 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Port Blair, India?

The magnitude 4.7 earthquake that struck 199 km SE of Port Blair, India on August 25, 2024 at 09:21 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 10.2045°, 93.8221°, which is 199 km SE of Port Blair, India.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000n9ak). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, August 25, 2024). M4.7 Earthquake 199 km SE of Port Blair, IndiaAugust 25, 2024. Retrieved November 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000n9ak/