M4.0 earthquake 72 km NNE of Calama, Chile
A magnitude 4.0 earthquake struck 72 km NNE of Calama, Chile on Wed, Jul 22, 2020, 12:11 AM GMT-4 (04:11 UTC), 125 km (78 mi) below the surface.
A larger quake followed: M4.9 161 km N 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
- 4.0 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-07-22 04:11:16 UTC
- Depth
- 125.4 km (77.9 mi), intermediate-depth
- Epicenter
- 21.831° S, 68.722° 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, 5.8 km in depth
- Depth from
- From location
- Station coverage gap
- 89°
- Stations used
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 8 in the 30 days before it.
After
- 4.061 km NNE of Calama, Chile · 2256 days ago · 121 km deep · 13 km away
- 4.3128 km N of Calama, Chile · 2253 days ago · 138 km deep · 58 km away
- 4.1149 km NNE of Calama, Chile · 2247 days ago · 156 km deep · 78 km away
- 4.251 km NNE of Calama, Chile · 2227 days ago · 120 km deep · 25 km away
- 4.395 km NNE of Calama, Chile · 2213 days ago · 122 km deep · 30 km away
- 4.9161 km N of Calama, Chile · 2205 days ago · 124 km deep · 91 km away · felt by 6
Before
- 4.3119 km N of Calama, Chile · 2264 days ago · 103 km deep · 49 km away
- 4.946 km NE of Calama, Chile · 2264 days ago · 122 km deep · 44 km away
- 4.166 km NNE of Calama, Chile · 2265 days ago · 128 km deep · 16 km away
- 4.174 km NNE of Calama, Chile · 2265 days ago · 127 km deep · 17 km away
- 4.1144 km NNE of Calama, Chile · 2266 days ago · 132 km deep · 73 km away
- 4.0167 km ESE of Iquique, Chile · 2272 days ago · 122 km deep · 98 km away
- 4.2148 km N of Calama, Chile · 2272 days ago · 117 km deep · 81 km away
- 4.383 km NNE of Calama, Chile · 2288 days ago · 124 km deep · 23 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000astd. Read Sat, Oct 3, 2026, 2:33 AM UTC.