M4.4 earthquake 85 km WSW of Copiapó, Chile
A magnitude 4.4 earthquake struck 85 km WSW of Copiapó, Chile on Thu, Aug 20, 2015, 7:49 AM GMT-3 (10:49 UTC), 20 km (13 mi) below the surface.
A larger quake followed: M4.6 47 km NNW of Vallenar, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (ml), light
- Local time
- UTC
- 2015-08-20 10:49:16 UTC
- Depth
- 20.2 km (12.5 mi), shallow
- Epicenter
- 27.755° S, 71.079° 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, 10.3 km in depth
- Depth from
- From location
- Station coverage gap
- 139°
- Stations used
- 30
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
- 4.541 km N of Vallenar, Chile · 4039 days ago · 39 km deep · 62 km away
- 4.647 km NNW of Vallenar, Chile · 4027 days ago · 62 km deep · 51 km away
- 4.255 km SW of Copiapó, Chile · 4002 days ago · 61 km deep · 31 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100033mz. Read Sun, Sep 27, 2026, 8:02 AM UTC.