4.3

M4.3 Earthquake 86 km W of Murghob, Tajikistan — April 25, 2021

2021-04-25 20:05:23 UTC (2021-04-25) · approx. 1:05 AM UTC+5 local

MagnitudeM4.3(mb)
Time20:05 UTC≈ 1:05 AM UTC+5
Depth136.3 kmintermediate depth
Coordinates38.201°, 72.983°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 25, 2021 at 20:05 UTC, a magnitude 4.3 intermediate depth earthquake struck 86 km W of Murghob, Tajikistan, at a depth of 136.3 km and coordinates 38.2013°, 72.9826°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 38.20°, 72.98°

Earthquake Details

Magnitude
4.3 mb
Depth
136.3 km
intermediate depth
Location
38.2013°N
72.9826°E

Technical Information

Event ID
us6000e4qu
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Azimuthal Gap
63.0°
Min Station Distance
1.576°
RMS Residual
1.12 sec
Last Updated
2021-07-07 18:35:06 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Murghob, Tajikistan?

The magnitude 4.3 earthquake that struck 86 km W of Murghob, Tajikistan on April 25, 2021 at 20:05 UTC had a depth of 136.3 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000e4qu). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, April 25, 2021). M4.3 Earthquake 86 km W of Murghob, Tajikistan — April 25, 2021. Retrieved July 7, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000e4qu/