M4.2 earthquake 100 km SSW of Calama, Chile
A magnitude 4.2 earthquake struck 100 km SSW of Calama, Chile on Tue, Aug 9, 2016, 9:57 AM GMT-4 (13:57 UTC), 74 km (46 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
- 4.2 (mb), light
- Local time
- UTC
- 2016-08-09 13:57:19 UTC
- Depth
- 73.9 km (45.9 mi), intermediate-depth
- Epicenter
- 23.243° S, 69.410° 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 3.4 km horizontally, 6.1 km in depth
- Magnitude uncertainty
- ±0.16
- 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: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.186 km SW of Calama, Chile · 3692 days ago · 68 km deep · 24 km away
- 4.151 km WSW of San Pedro de Atacama, Chile · 3680 days ago · 109 km deep · 78 km away
- 4.395 km SSW of Calama, Chile · 3673 days ago · 94 km deep · 24 km away
- 4.265 km SSW of Calama, Chile · 3671 days ago · 86 km deep · 40 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006ccn. Read Wed, Sep 30, 2026, 9:38 AM UTC.