M4.0 earthquake 61 km NNE of Calama, Chile
A magnitude 4.0 earthquake struck 61 km NNE of Calama, Chile on Wed, Jul 29, 2020, 9:14 PM GMT-4 (01:14 UTC), 121 km (75 mi) below the surface.
A larger quake followed: M4.9 87 km NE 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 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-07-30 01:14:31 UTC
- Depth
- 121.4 km (75.5 mi), intermediate-depth
- Epicenter
- 21.916° S, 68.805° 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 5.8 km horizontally, 5.3 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 77°
- Stations used
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.3128 km N of Calama, Chile · 2252 days ago · 138 km deep · 68 km away
- 4.1149 km NNE of Calama, Chile · 2246 days ago · 156 km deep · 89 km away
- 4.251 km NNE of Calama, Chile · 2227 days ago · 120 km deep · 20 km away
- 4.395 km NNE of Calama, Chile · 2213 days ago · 122 km deep · 42 km away
- 4.987 km NE of Calama, Chile · 2201 days ago · 127 km deep · 39 km away · felt by 2
- 4.064 km NNE of Calama, Chile · 2201 days ago · 119 km deep · 12 km away
- 4.036 km NW of San Pedro de Atacama, Chile · 2200 days ago · 114 km deep · 91 km away
Before
- 4.072 km NNE of Calama, Chile · 2263 days ago · 125 km deep · 13 km away
- 4.3119 km N of Calama, Chile · 2264 days ago · 103 km deep · 59 km away
- 4.946 km NE of Calama, Chile · 2264 days ago · 122 km deep · 40 km away
- 4.166 km NNE of Calama, Chile · 2264 days ago · 128 km deep · 20 km away
- 4.174 km NNE of Calama, Chile · 2265 days ago · 127 km deep · 25 km away
- 4.1144 km NNE of Calama, Chile · 2265 days ago · 132 km deep · 84 km away
- 4.2148 km N of Calama, Chile · 2272 days ago · 117 km deep · 89 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000b6il. Read Fri, Oct 2, 2026, 9:41 AM UTC.