4.9

M4.9 Earthquake 72 km E of Kangding, ChinaMay 20, 2022

2022-05-20 00:36:37 UTC (2022-05-20) · approx. 7:36 AM UTC+7 local

Felt by 5 people across nearby locations.

MagnitudeM4.9(mb)
Time00:36 UTC7:36 AM UTC+7
Depth10.0 kmshallow crustal
Coordinates29.890°, 102.702°
Felt by5DYFI responses
Status✓ Reviewed by USGS

On May 20, 2022 at 00:36 UTC, a magnitude 4.9 shallow crustal earthquake struck 72 km E of Kangding, China, at a depth of 10.0 km and coordinates 29.8899°, 102.7017°. This earthquake was detected by 95 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 371, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 29.89°, 102.70°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 5 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.9 earthquake near 72 km E of Kangding, China

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
29.8899°N
102.7017°E
Felt Reports
5
DYFI responses
Community Intensity
4.1
CDI from reports

Technical Information

Event ID
us6000hmi0
Event Type
earthquake
Status
✓ Reviewed
Significance
371
Stations Used
95
Azimuthal Gap
37.0°
Min Station Distance
5.899°
RMS Residual
0.79 sec
Last Updated
2022-07-24 02:40:29 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Kangding, China?

The magnitude 4.9 earthquake that struck 72 km E of Kangding, China on May 20, 2022 at 00:36 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 29.8899°, 102.7017°, which is 72 km E of Kangding, China.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000hmi0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, May 20, 2022). M4.9 Earthquake 72 km E of Kangding, ChinaMay 20, 2022. Retrieved July 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hmi0/