4.4

M4.4 Earthquake 210 km SE of Port Blair, IndiaJanuary 29, 2022

2022-01-29 23:46:31 UTC (2022-01-29) · approx. 5:46 AM UTC+6 local

MagnitudeM4.4(mb)
Time23:46 UTC5:46 AM UTC+6
Depth10.0 kmshallow crustal
Coordinates10.586°, 94.333°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 29, 2022 at 23:46 UTC, a magnitude 4.4 shallow crustal earthquake struck 210 km SE of Port Blair, India, at a depth of 10.0 km and coordinates 10.5863°, 94.3334°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 10.59°, 94.33°

Earthquake Details

Magnitude
4.4 mb
Depth
10.0 km
shallow crustal
Location
10.5863°N
94.3334°E

Technical Information

Event ID
us7000ghvq
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Azimuthal Gap
173.0°
Min Station Distance
1.887°
RMS Residual
0.39 sec
Last Updated
2022-04-15 17:57:20 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Port Blair, India?

The magnitude 4.4 earthquake that struck 210 km SE of Port Blair, India on January 29, 2022 at 23:46 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000ghvq). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, January 29, 2022). M4.4 Earthquake 210 km SE of Port Blair, IndiaJanuary 29, 2022. Retrieved April 15, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000ghvq/