M5.5 earthquake 108 km E of Simao, China
A magnitude 5.5 earthquake struck 108 km E of Simao, China on Sun, Sep 18, 1966, 10:15 PM GMT+8 (14:15 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1966-09-18 14:15:56 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 22.768° N, 102.031° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem843649. Read Wed, Sep 23, 2026, 7:36 AM UTC.