4.5

M4.5 Earthquake 232 km SSE of Port Blair, IndiaMay 9, 2022

2022-05-09 22:06:30 UTC (2022-05-09) · approx. 4:06 AM UTC+6 local

MagnitudeM4.5(mb)
Time22:06 UTC4:06 AM UTC+6
Depth10.0 kmshallow crustal
Coordinates9.702°, 93.498°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 9, 2022 at 22:06 UTC, a magnitude 4.5 shallow crustal earthquake struck 232 km SSE of Port Blair, India, at a depth of 10.0 km and coordinates 9.7019°, 93.4980°. This earthquake was detected by 24 seismic stations with moderate location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 9.70°, 93.50°

Earthquake Details

Magnitude
4.5 mb
Depth
10.0 km
shallow crustal
Location
9.7019°N
93.4980°E

Technical Information

Event ID
us6000hli4
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
24
Azimuthal Gap
197.0°
Min Station Distance
2.078°
RMS Residual
0.79 sec
Last Updated
2022-07-22 18:30:57 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Port Blair, India?

The magnitude 4.5 earthquake that struck 232 km SSE of Port Blair, India on May 9, 2022 at 22:06 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 9.7019°, 93.4980°, which is 232 km SSE of Port Blair, India.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000hli4). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, May 9, 2022). M4.5 Earthquake 232 km SSE of Port Blair, IndiaMay 9, 2022. Retrieved July 22, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hli4/