M4.3 earthquake 64 km SW of Calama, Chile
A magnitude 4.3 earthquake struck 64 km SW of Calama, Chile on Sun, Oct 22, 2023, 7:38 AM GMT-3 (10:38 UTC), 85 km (53 mi) below the surface.
A larger quake followed: M4.6 47 km S of Calama, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-10-22 10:38:03 UTC
- Depth
- 85.0 km (52.8 mi), intermediate-depth
- Epicenter
- 22.910° S, 69.313° W
- Region
- Chile
- 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.
- Location uncertainty
- About 5.7 km horizontally, 5.3 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 110°
- Stations used
- 25
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.372 km ENE of Antofagasta, Chile · 1061 days ago · 66 km deep · 77 km away
- 4.238 km S of Calama, Chile · 1054 days ago · 103 km deep · 49 km away
- 4.278 km SSW of Calama, Chile · 1052 days ago · 107 km deep · 31 km away
- 4.647 km S of Calama, Chile · 1048 days ago · 107 km deep · 33 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000lhah. Read Mon, Oct 5, 2026, 1:52 AM UTC.