M4.2 earthquake 33 km NE of Calama, Chile
A magnitude 4.2 earthquake struck 33 km NE of Calama, Chile on Sun, Aug 2, 2015, 3:32 AM GMT-3 (06:32 UTC), 104 km (64 mi) below the surface.
A larger quake followed: M4.6 93 km NNE 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
- 4.2 (mb), light
- Local time
- UTC
- 2015-08-02 06:32:34 UTC
- Depth
- 103.5 km (64.3 mi), intermediate-depth
- Epicenter
- 22.275° S, 68.669° 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 7.4 km horizontally, 5.1 km in depth
- Magnitude uncertainty
- ±0.19
- Stations used
- 0
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.171 km NNE of Calama, Chile · 4072 days ago · 133 km deep · 46 km away
- 4.068 km NNE of Calama, Chile · 4055 days ago · 115 km deep · 43 km away
- 4.693 km NNE of Calama, Chile · 4054 days ago · 120 km deep · 65 km away
- 4.483 km NNE of Calama, Chile · 4048 days ago · 126 km deep · 56 km away
- 4.152 km NNE of Calama, Chile · 4047 days ago · 137 km deep · 33 km away
- 4.475 km NE of Calama, Chile · 4047 days ago · 120 km deep · 45 km away
- 4.526 km SW of San Pedro de Atacama, Chile · 4044 days ago · 135 km deep · 96 km away
- 4.291 km NNE of Calama, Chile · 4034 days ago · 138 km deep · 64 km away
- 4.060 km NNE of Calama, Chile · 4034 days ago · 102 km deep · 31 km away
- 4.4107 km NNE of Calama, Chile · 4030 days ago · 127 km deep · 79 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10002x9f. Read Tue, Sep 29, 2026, 1:04 PM UTC.