M4.2 earthquake 103 km N of Tocopilla, Chile
A magnitude 4.2 earthquake struck 103 km N of Tocopilla, Chile on Mon, May 24, 2021, 12:50 AM GMT-4 (04:50 UTC), 46 km (28 mi) below the surface.
A larger quake followed: M4.5 83 km NNW 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-05-24 04:50:56 UTC
- Depth
- 45.6 km (28.3 mi), shallow
- Epicenter
- 21.170° S, 70.020° W
- Region
- Chile
- Felt reports
- 2
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
2 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.0 km horizontally, 5.7 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
- Station coverage gap
- 137°
- Stations used
- 34
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 2 in the 30 days before it.
After
- 4.583 km NNW of Tocopilla, Chile · 1946 days ago · 51 km deep · 66 km away · felt by 8
- 4.382 km NE of Tocopilla, Chile · 1933 days ago · 13 km deep · 52 km away · felt by 1
- 4.184 km NNE of Tocopilla, Chile · 1911 days ago · 59 km deep · 25 km away
- 2.315 km SSE of Iquique, Chile · 1902 days ago · 32 km deep · 92 km away · felt by 2
- 4.283 km SSE of Iquique, Chile · 1900 days ago · 88 km deep · 30 km away · felt by 6
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e5p1. Read Fri, Oct 2, 2026, 4:02 PM UTC.