M4.1 earthquake 72 km S of Calama, Chile
A magnitude 4.1 earthquake struck 72 km S of Calama, Chile on Sun, Oct 22, 2017, 6:57 PM GMT-3 (21:57 UTC), 100 km (62 mi) below the surface.
A larger quake followed: M4.5 66 km NE of Antofagasta, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-10-22 21:57:54 UTC
- Depth
- 99.8 km (62.0 mi), intermediate-depth
- Epicenter
- 23.102° S, 69.032° 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 4.7 km horizontally, 2.5 km in depth
- Magnitude uncertainty
- ±0.30
- Depth from
- From location
- Station coverage gap
- 81°
- Stations used
- 35
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.032 km SSE of Calama, Chile · 3259 days ago · 98 km deep · 44 km away
- 4.566 km NE of Antofagasta, Chile · 3255 days ago · 53 km deep · 97 km away
- 4.0103 km SW of San Pedro de Atacama, Chile · 3230 days ago · 130 km deep · 49 km away
- 4.041 km S of Calama, Chile · 3217 days ago · 110 km deep · 34 km away
- 4.170 km S of Calama, Chile · 3215 days ago · 97 km deep · 12 km away
Before
- 4.042 km SW of Calama, Chile · 3268 days ago · 87 km deep · 41 km away
- 4.5Antofagasta, Chile · 3273 days ago · 112 km deep · 34 km away
- 5.542 km ENE of Calama, Chile · 3283 days ago · 110 km deep · 96 km away · felt by 5
- 4.821 km S of San Pedro de Atacama, Chile · 3284 days ago · 129 km deep · 85 km away · felt by 2
- 4.4121 km E of Antofagasta, Chile · 3288 days ago · 96 km deep · 58 km away
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000avsc. Read Thu, Oct 1, 2026, 9:33 AM UTC.