4.6

M4.6 Earthquake 172 km SW of Port Blair, IndiaJune 22, 2022

2022-06-22 14:25:32 UTC (2022-06-22) · approx. 8:25 PM UTC+6 local

MagnitudeM4.6(mb)
Time14:25 UTC8:25 PM UTC+6
Depth10.0 kmshallow crustal
Coordinates10.585°, 91.612°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 22, 2022 at 14:25 UTC, a magnitude 4.6 shallow crustal earthquake struck 172 km SW of Port Blair, India, at a depth of 10.0 km and coordinates 10.5852°, 91.6122°. This earthquake was detected by 83 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 10.59°, 91.61°

Earthquake Details

Magnitude
4.6 mb
Depth
10.0 km
shallow crustal
Location
10.5852°N
91.6122°E

Technical Information

Event ID
us7000hjal
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
83
Azimuthal Gap
46.0°
Min Station Distance
1.538°
RMS Residual
0.32 sec
Last Updated
2022-08-28 03:20:14 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Port Blair, India?

The magnitude 4.6 earthquake that struck 172 km SW of Port Blair, India on June 22, 2022 at 14:25 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 10.5852°, 91.6122°, which is 172 km SW of Port Blair, India.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000hjal). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, June 22, 2022). M4.6 Earthquake 172 km SW of Port Blair, IndiaJune 22, 2022. Retrieved August 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hjal/