4.1

M4.1 Earthquake 50 km ESE of Bāndarban, BangladeshApril 20, 2024

2024-04-20 16:46:37 UTC (2024-04-20) · approx. 10:46 PM UTC+6 local

MagnitudeM4.1(mb)
Time16:46 UTC10:46 PM UTC+6
Depth44.9 kmshallow crustal
Coordinates21.981°, 92.651°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 20, 2024 at 16:46 UTC, a magnitude 4.1 shallow crustal earthquake struck 50 km ESE of Bāndarban, Bangladesh, at a depth of 44.9 km and coordinates 21.9812°, 92.6510°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 21.98°, 92.65°

Earthquake Details

Magnitude
4.1 mb
Depth
44.9 km
shallow crustal
Location
21.9812°N
92.6510°E

Technical Information

Event ID
us6000mu0v
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
28
Azimuthal Gap
160.0°
Min Station Distance
1.162°
RMS Residual
0.58 sec
Last Updated
2024-06-25 21:02:32 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Bāndarban, Bangladesh?

The magnitude 4.1 earthquake that struck 50 km ESE of Bāndarban, Bangladesh on April 20, 2024 at 16:46 UTC had a depth of 44.9 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 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000mu0v). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, April 20, 2024). M4.1 Earthquake 50 km ESE of Bāndarban, BangladeshApril 20, 2024. Retrieved June 25, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mu0v/