4.3

M4.3 Earthquake 32 km S of Jurm, Afghanistan — July 23, 2021

2021-07-23 20:12:53 UTC (2021-07-23) · approx. 1:12 AM UTC+5 local

MagnitudeM4.3(mb)
Time20:12 UTC≈ 1:12 AM UTC+5
Depth207.2 kmintermediate depth
Coordinates36.576°, 70.856°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 23, 2021 at 20:12 UTC, a magnitude 4.3 intermediate depth earthquake struck 32 km S of Jurm, Afghanistan, at a depth of 207.2 km and coordinates 36.5757°, 70.8556°.

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 36.58°, 70.86°

Earthquake Details

Magnitude
4.3 mb
Depth
207.2 km
intermediate depth
Location
36.5757°N
70.8556°E

Technical Information

Event ID
us6000eyf6
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Azimuthal Gap
78.0°
Min Station Distance
0.592°
RMS Residual
0.78 sec
Last Updated
2021-10-03 05:21:28 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Jurm, Afghanistan?

The magnitude 4.3 earthquake that struck 32 km S of Jurm, Afghanistan on July 23, 2021 at 20:12 UTC had a depth of 207.2 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: us6000eyf6). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, July 23, 2021). M4.3 Earthquake 32 km S of Jurm, Afghanistan — July 23, 2021. Retrieved October 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000eyf6/