M4.1 earthquake 86 km SW of Calama, Chile
A magnitude 4.1 earthquake struck 86 km SW of Calama, Chile on Sun, Aug 21, 2016, 4:43 AM GMT-3 (07:43 UTC), 68 km (42 mi) below the surface.
A larger quake followed: M4.3 95 km SSW 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
- 2016-08-21 07:43:22 UTC
- Depth
- 67.9 km (42.2 mi), shallow
- Epicenter
- 23.042° S, 69.483° 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, 6.6 km in depth
- Magnitude uncertainty
- ±0.53
- 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: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.151 km WSW of San Pedro de Atacama, Chile · 3680 days ago · 109 km deep · 83 km away
- 4.395 km SSW of Calama, Chile · 3673 days ago · 94 km deep · 42 km away
- 4.265 km SSW of Calama, Chile · 3671 days ago · 86 km deep · 39 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006fjs. Read Wed, Sep 30, 2026, 12:21 PM UTC.