4.7

M4.7 Earthquake 121 km NE of Kuqa, ChinaOctober 26, 2021

2021-10-26 17:47:02 UTC (2021-10-26) · approx. 11:47 PM UTC+6 local

MagnitudeM4.7(mb)
Time17:47 UTC11:47 PM UTC+6
Depth10.0 kmshallow crustal
Coordinates42.427°, 84.046°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 26, 2021 at 17:47 UTC, a magnitude 4.7 shallow crustal earthquake struck 121 km NE of Kuqa, China, at a depth of 10.0 km and coordinates 42.4268°, 84.0460°.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 42.43°, 84.05°

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
42.4268°N
84.0460°E

Technical Information

Event ID
us7000fp09
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Azimuthal Gap
45.0°
Min Station Distance
3.471°
RMS Residual
0.68 sec
Last Updated
2022-01-08 17:43:03 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Kuqa, China?

The magnitude 4.7 earthquake that struck 121 km NE of Kuqa, China on October 26, 2021 at 17:47 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 42.4268°, 84.0460°, which is 121 km NE of Kuqa, China.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000fp09). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, October 26, 2021). M4.7 Earthquake 121 km NE of Kuqa, ChinaOctober 26, 2021. Retrieved January 8, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fp09/