M4.2 earthquake 86 km NE of Tocopilla, Chile
A magnitude 4.2 earthquake struck 86 km NE of Tocopilla, Chile on Sun, Mar 18, 2018, 6:46 AM GMT-3 (09:46 UTC), 26 km (16 mi) below the surface.
A larger quake followed: M5.0 114 km N of Calama, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-18 09:46:58 UTC
- Depth
- 26.4 km (16.4 mi), shallow
- Epicenter
- 21.535° S, 69.616° 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 2.5 km horizontally, 6.8 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- From location
- Station coverage gap
- 77°
- Stations used
- 27
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.5118 km N of Calama, Chile · 3115 days ago · 117 km deep · 94 km away
- 4.191 km NNE of Tocopilla, Chile · 3115 days ago · 51 km deep · 43 km away
- 4.3153 km N of Calama, Chile · 3095 days ago · 155 km deep · 98 km away
- 5.0114 km N of Calama, Chile · 3089 days ago · 104 km deep · 80 km away · felt by 2
- 4.479 km ENE of Tocopilla, Chile · 3081 days ago · 85 km deep · 38 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d61n. Read Thu, Oct 1, 2026, 10:39 AM UTC.