M4.0 earthquake 16 km SW of Cuya, Chile
A magnitude 4.0 earthquake struck 16 km SW of Cuya, Chile on Sun, Apr 9, 2023, 1:24 AM GMT-4 (05:24 UTC), 47 km (29 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-04-09 05:24:33 UTC
- Depth
- 46.7 km (29.0 mi), shallow
- Epicenter
- 19.286° S, 70.269° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Strike-slip
- Moment magnitude
- 4.0 Mwr
- Nodal plane 1
- Strike 346°, dip 71°, rake -166°
- Nodal plane 2
- Strike 252°, dip 77°, rake -19°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.1 km horizontally, 13.6 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 171°
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000k2yu. Read Sun, Oct 4, 2026, 11:29 PM UTC.