M4.2 earthquake 113 km SE of Arica, Chile
A magnitude 4.2 earthquake struck 113 km SE of Arica, Chile on Sun, Aug 21, 2016, 1:56 AM GMT-3 (04:56 UTC), 72 km (45 mi) below the surface.
A larger quake followed: M4.6 49 km E of Arica, 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
- 2016-08-21 04:56:57 UTC
- Depth
- 72.2 km (44.9 mi), intermediate-depth
- Epicenter
- 19.283° S, 69.630° 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 6.0 km horizontally, 11.0 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- From location
- Station coverage gap
- 110°
- Stations used
- 32
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 4 in the 30 days before it.
After
- 4.649 km E of Arica, Chile · 3684 days ago · 121 km deep · 98 km away · felt by 5
- 4.6136 km NE of Iquique, Chile · 3672 days ago · 127 km deep · 62 km away
- 3.983 km ENE of Iquique, Chile · 3663 days ago · 94 km deep · 81 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006fj3. Read Wed, Sep 30, 2026, 5:46 AM UTC.