M4.1 earthquake 91 km NNE of Tocopilla, Chile
A magnitude 4.1 earthquake struck 91 km NNE of Tocopilla, Chile on Thu, Mar 22, 2018, 5:44 AM GMT-3 (08:44 UTC), 51 km (32 mi) below the surface.
A larger quake followed: M4.4 79 km ENE of Tocopilla, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-22 08:44:02 UTC
- Depth
- 51.4 km (31.9 mi), shallow
- Epicenter
- 21.304° S, 69.944° 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 3.7 km horizontally, 4.0 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
- Station coverage gap
- 140°
- Stations used
- 39
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d7fg. Read Thu, Oct 1, 2026, 2:35 PM UTC.