M4.3 earthquake 64 km ENE of Salamanca, Chile
A magnitude 4.3 earthquake struck 64 km ENE of Salamanca, Chile on Tue, Dec 12, 2017, 4:42 AM GMT-3 (07:42 UTC), 126 km (78 mi) below the surface.
A larger quake followed: M5.2 64 km WSW of Calingasta, Argentina. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 2017-12-12 07:42:22 UTC
- Depth
- 125.9 km (78.2 mi), intermediate-depth
- Epicenter
- 31.657° S, 70.299° 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 6.3 km horizontally, 8.1 km in depth
- Magnitude uncertainty
- ±0.22
- Depth from
- From location
- Station coverage gap
- 87°
- Stations used
- 41
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 1 in the 30 days before it.
After
- 4.27 km SW of Calingasta, Argentina · 3197 days ago · 124 km deep · 84 km away
- 5.264 km WSW of Calingasta, Argentina · 3159 days ago · 101 km deep · 27 km away · felt by 13
- 4.5Chile-Argentina border region · 3155 days ago · 105 km deep · 90 km away · felt by 4
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000c39a. Read Sun, Sep 27, 2026, 8:09 AM UTC.