M4.2 earthquake 7 km SW of Calingasta, Argentina
A magnitude 4.2 earthquake struck 7 km SW of Calingasta, Argentina on Tue, Dec 26, 2017, 3:21 PM GMT-3 (18:21 UTC), 124 km (77 mi) below the surface.
A larger quake followed: M5.4 22 km NW of Albardón, Argentina. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 2017-12-26 18:21:22 UTC
- Depth
- 124.0 km (77.1 mi), intermediate-depth
- Epicenter
- 31.381° S, 69.476° W
- Region
- Argentina
- 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 5.7 km horizontally, 6.5 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- From location
- Station coverage gap
- 75°
- Stations used
- 65
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.422 km NW of Albardón, Argentina · 3167 days ago · 87 km deep · 78 km away · felt by 21
- 5.264 km WSW of Calingasta, Argentina · 3163 days ago · 101 km deep · 57 km away · felt by 13
Before
Earthquakes todayArgentina earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000bwf9. Read Wed, Sep 30, 2026, 11:26 PM UTC.