M4.0 earthquake 68 km NNE of Calama, Chile
A magnitude 4.0 earthquake struck 68 km NNE of Calama, Chile on Sun, Aug 23, 2015, 5:02 PM GMT-3 (20:02 UTC), 115 km (72 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
- 4.0 (mb), light
- Local time
- UTC
- 2015-08-23 20:02:39 UTC
- Depth
- 115.3 km (71.6 mi), intermediate-depth
- Epicenter
- 21.885° S, 68.666° 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, 6.2 km in depth
- Magnitude uncertainty
- ±0.36
- 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
- 4.693 km NNE of Calama, Chile · 4054 days ago · 120 km deep · 26 km away
- 4.483 km NNE of Calama, Chile · 4048 days ago · 126 km deep · 16 km away
- 4.152 km NNE of Calama, Chile · 4047 days ago · 137 km deep · 18 km away
- 4.475 km NE of Calama, Chile · 4047 days ago · 120 km deep · 18 km away
- 4.291 km NNE of Calama, Chile · 4035 days ago · 138 km deep · 23 km away
- 4.060 km NNE of Calama, Chile · 4034 days ago · 102 km deep · 14 km away
- 4.4107 km NNE of Calama, Chile · 4030 days ago · 127 km deep · 39 km away
- 4.1138 km N of Calama, Chile · 4023 days ago · 114 km deep · 74 km away
- 4.325 km ESE of Calama, Chile · 4003 days ago · 109 km deep · 77 km away
- 4.3Chile-Bolivia border region · 3998 days ago · 125 km deep · 77 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100034cm. Read Tue, Sep 29, 2026, 2:36 PM UTC.