4.2

M4.2 Earthquake 101 km ENE of Port Blair, IndiaJune 28, 2026

2026-06-28 15:51:09 UTC (2026-06-28) · approx. 9:51 PM UTC+6 local

MagnitudeM4.2(mb)
Time15:51 UTC9:51 PM UTC+6
Depth99.9 kmintermediate depth
Coordinates12.140°, 93.546°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 28, 2026 at 15:51 UTC, a magnitude 4.2 intermediate depth earthquake struck 101 km ENE of Port Blair, India, at a depth of 99.9 km and coordinates 12.1405°, 93.5465°.

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 12.14°, 93.55°

Earthquake Details

Magnitude
4.2 mb
Depth
99.9 km
intermediate depth
Location
12.1405°N
93.5465°E

Technical Information

Event ID
us6000tagw
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
20
Azimuthal Gap
144.0°
Min Station Distance
6.113°
RMS Residual
0.44 sec
Last Updated
2026-07-06 21:30:37 UTC

Common Questions

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

The magnitude 4.2 earthquake that struck 101 km ENE of Port Blair, India on June 28, 2026 at 15:51 UTC had a depth of 99.9 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: us6000tagw). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 28, 2026). M4.2 Earthquake 101 km ENE of Port Blair, IndiaJune 28, 2026. Retrieved July 6, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tagw/