M5.0 Earthquake 23 km SW of Longquan, China — June 10, 2021
2021-06-10 11:46:10 UTC (2021-06-10) · approx. 6:46 PM UTC+7 local
Felt by 2 people across nearby locations.
On June 10, 2021 at 11:46 UTC, a magnitude 5.0 shallow crustal earthquake struck 23 km SW of Longquan, China, at a depth of 10.0 km and coordinates 24.5004°, 102.0230°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 2 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
102.0230°E
Technical Information
Common Questions
How strong was the magnitude 5.0 earthquake near Longquan, China?
The magnitude 5.0 earthquake that struck 23 km SW of Longquan, China on June 10, 2021 at 11:46 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 24.5004°, 102.0230°, which is 23 km SW of Longquan, 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.
Actions
Location
Authoritative source: USGS event page (event ID: us7000ebq9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, June 10, 2021). M5.0 Earthquake 23 km SW of Longquan, China — June 10, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000ebq9/