M4.0 earthquake 43 km NE of Calama, Chile
A magnitude 4.0 earthquake struck 43 km NE of Calama, Chile on Tue, Mar 31, 2015, 8:27 PM GMT-3 (23:27 UTC), 111 km (69 mi) below the surface.
A larger quake followed: M5.6 61 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
- 2015-03-31 23:27:14 UTC
- Depth
- 111.3 km (69.2 mi), intermediate-depth
- Epicenter
- 22.190° S, 68.618° 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 7.1 km horizontally, 2.8 km in depth
- Magnitude uncertainty
- ±0.30
- Depth from
- FROM_LOCATION
- Station coverage gap
- 86°
- Stations used
- 38
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.327 km W of San Pedro de Atacama, Chile · 4196 days ago · 145 km deep · 84 km away
- 4.197 km NE of Calama, Chile · 4195 days ago · 120 km deep · 56 km away
- 4.137 km NE of Calama, Chile · 4171 days ago · 129 km deep · 6 km away
- 4.231 km ENE of Calama, Chile · 4170 days ago · 116 km deep · 16 km away
- 4.281 km NE of Calama, Chile · 4169 days ago · 117 km deep · 39 km away
- 4.120 km SE of Calama, Chile · 4165 days ago · 101 km deep · 48 km away
- 4.098 km NNE of Calama, Chile · 4155 days ago · 106 km deep · 62 km away
- 5.661 km NE of Calama, Chile · 4146 days ago · 124 km deep · 19 km away · felt by 3
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10001sm0. Read Thu, Oct 1, 2026, 1:33 PM UTC.