4.6

M4.6 Earthquake 81 km NW of Kuqa, ChinaSeptember 26, 2021

2021-09-26 17:22:17 UTC (2021-09-26) · approx. 10:22 PM UTC+5 local

MagnitudeM4.6(mb)
Time17:22 UTC10:22 PM UTC+5
Depth10.0 kmshallow crustal
Coordinates42.220°, 82.219°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 26, 2021 at 17:22 UTC, a magnitude 4.6 shallow crustal earthquake struck 81 km NW of Kuqa, China, at a depth of 10.0 km and coordinates 42.2202°, 82.2187°.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 42.22°, 82.22°

Earthquake Details

Magnitude
4.6 mb
Depth
10.0 km
shallow crustal
Location
42.2202°N
82.2187°E

Technical Information

Event ID
us6000fqhm
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Azimuthal Gap
87.0°
Min Station Distance
2.297°
RMS Residual
1.30 sec
Last Updated
2021-12-04 14:28:35 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Kuqa, China?

The magnitude 4.6 earthquake that struck 81 km NW of Kuqa, China on September 26, 2021 at 17:22 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 42.2202°, 82.2187°, which is 81 km NW of Kuqa, China.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000fqhm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, September 26, 2021). M4.6 Earthquake 81 km NW of Kuqa, ChinaSeptember 26, 2021. Retrieved December 4, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000fqhm/