M4.2 earthquake 81 km WSW of Vallenar, Chile
A magnitude 4.2 earthquake struck 81 km WSW of Vallenar, Chile on Sun, Mar 18, 2018, 5:06 AM GMT-3 (08:06 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M4.4 79 km NW 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
- 4.2 (mb), light
- Local time
- UTC
- 2018-03-18 08:06:13 UTC
- Depth
- 24.2 km (15.0 mi), shallow
- Epicenter
- 28.831° S, 71.539° 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 5.0 km horizontally, 7.3 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
- Station coverage gap
- 159°
- Stations used
- 43
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
- 3.960 km W of Vallenar, Chile · 3114 days ago · 24 km deep · 42 km away · felt by 1
- 4.479 km NW of Vallenar, Chile · 3075 days ago · 22 km deep · 73 km away
- 4.123 km N of Vallenar, Chile · 3068 days ago · 85 km deep · 89 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d615. Read Sat, Sep 26, 2026, 11:22 PM UTC.