5.0

M5.0 Earthquake 92 km ENE of Nagqu, China — April 6, 2021

2021-04-06 21:48:35 UTC (2021-04-06) · approx. 3:48 AM UTC+6 local

MagnitudeM5.0(mww)
Time21:48 UTC≈ 3:48 AM UTC+6
Depth10.0 kmshallow crustal
Coordinates31.869°, 92.914°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 6, 2021 at 21:48 UTC, a magnitude 5.0 shallow crustal earthquake struck 92 km ENE of Nagqu, China, at a depth of 10.0 km and coordinates 31.8686°, 92.9137°.

Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 31.87°, 92.91°

Earthquake Details

Magnitude
5.0 mww
Depth
10.0 km
shallow crustal
Location
31.8686°N
92.9137°E

Technical Information

Event ID
us6000dzil
Event Type
earthquake
Status
✓ Reviewed
Significance
385
Azimuthal Gap
33.0°
Min Station Distance
2.650°
RMS Residual
0.73 sec
Last Updated
2025-12-22 18:55:48 UTC

Common Questions

How strong was the magnitude 5.0 earthquake near Nagqu, China?

The magnitude 5.0 earthquake that struck 92 km ENE of Nagqu, China on April 6, 2021 at 21:48 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 31.8686°, 92.9137°, which is 92 km ENE of Nagqu, China.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000dzil). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, April 6, 2021). M5.0 Earthquake 92 km ENE of Nagqu, China — April 6, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000dzil/