4.2

M4.2 Earthquake 227 km ESE of Port Blair, IndiaMarch 12, 2024

2024-03-12 18:02:09 UTC (2024-03-12) · approx. 12:02 AM UTC+6 local

MagnitudeM4.2(mb)
Time18:02 UTC12:02 AM UTC+6
Depth10.0 kmshallow crustal
Coordinates11.265°, 94.793°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 12, 2024 at 18:02 UTC, a magnitude 4.2 shallow crustal earthquake struck 227 km ESE of Port Blair, India, at a depth of 10.0 km and coordinates 11.2654°, 94.7931°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 11.27°, 94.79°

Earthquake Details

Magnitude
4.2 mb
Depth
10.0 km
shallow crustal
Location
11.2654°N
94.7931°E

Technical Information

Event ID
us6000mjm1
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
19
Azimuthal Gap
178.0°
Min Station Distance
5.039°
RMS Residual
0.32 sec
Last Updated
2024-05-18 21:23:47 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Port Blair, India?

The magnitude 4.2 earthquake that struck 227 km ESE of Port Blair, India on March 12, 2024 at 18:02 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000mjm1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, March 12, 2024). M4.2 Earthquake 227 km ESE of Port Blair, IndiaMarch 12, 2024. Retrieved May 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mjm1/