M4.9 earthquake 258 km NW of Kangding, China
A magnitude 4.9 earthquake struck 258 km NW of Kangding, China on Wed, Feb 21, 1973, 4:23 PM GMT+8 (08:23 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.4 276 km NW of Kangding, China. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1973-02-21 08:23:15 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 31.666° N, 100.062° E
- Region
- China
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 2 in the 60 days after this one and 5 in the 30 days before it.
After
- 5.1244 km ENE of Qamdo, China · 19549 days ago · 35 km deep · 43 km away
- 5.4276 km NW of Kangding, China · 19547 days ago · 33 km deep · 24 km away
Before
- 4.9262 km NW of Kangding, China · 19582 days ago · 33 km deep · 4 km away
- 5.8227 km NW of Kangding, China · 19591 days ago · 33 km deep · 31 km away
- 4.9193 km NW of Kangding, China · 19591 days ago · 33 km deep · 66 km away
- 5.1264 km NW of Kangding, China · 19592 days ago · 33 km deep · 6 km away
- 7.4203 km NW of Kangding, China · 19592 days ago · 33 km deep · 58 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00000mm (also filed as iscgem764153, iscgemsup764153). Read Mon, Sep 28, 2026, 5:31 PM UTC.