M4.1 earthquake 6 km SSW of Calama, Chile
A magnitude 4.1 earthquake struck 6 km SSW of Calama, Chile on Sun, Feb 21, 2016, 7:39 AM GMT-3 (10:39 UTC), 86 km (54 mi) below the surface.
A larger quake followed: M5.2 71 km S 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
- 4.1 (mb), light
- Local time
- UTC
- 2016-02-21 10:39:49 UTC
- Depth
- 86.4 km (53.7 mi), intermediate-depth
- Epicenter
- 22.513° S, 68.952° 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 6.8 km horizontally, 3.5 km in depth
- Magnitude uncertainty
- ±0.14
- 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: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.271 km S of Calama, Chile · 3870 days ago · 85 km deep · 66 km away · felt by 3
- 4.861 km WSW of San Pedro de Atacama, Chile · 3855 days ago · 86 km deep · 70 km away · felt by 1
- 4.221 km NE of Calama, Chile · 3853 days ago · 128 km deep · 28 km away
- 4.575 km NE of Calama, Chile · 3852 days ago · 121 km deep · 83 km away
- 4.844 km NW of San Pedro de Atacama, Chile · 3835 days ago · 96 km deep · 46 km away · felt by 2
- 4.220 km NNE of San Pedro de Atacama, Chile · 3830 days ago · 109 km deep · 91 km away
- 4.442 km NE of Calama, Chile · 3822 days ago · 119 km deep · 49 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10004sd4. Read Wed, Sep 30, 2026, 3:27 PM UTC.