Chile earthquakes

M4.1 earthquake 44 km W of Iquique, Chile

A magnitude 4.1 earthquake struck 44 km W of Iquique, Chile on Sat, Mar 20, 2021, 10:18 PM GMT-3 (01:18 UTC), 38 km (24 mi) below the surface.

A larger quake followed: M4.4 45 km NE of Iquique, Chile. This one was a foreshock.

Iquique forecastMore in Chile

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-03-21 01:18:47 UTC
Depth
38.2 km (23.7 mi), shallow
Epicenter
20.169° S, 70.573° W
Region
Chile
Felt reports
9
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

9 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 6.4 km horizontally, 10.9 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
183°, poorly surrounded by stations
Stations used
24

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 3.656 km ESE of Iquique, Chile · 2021 days ago · 31 km deep · 98 km away · felt by 6
  2. 3.122 km NW of Iquique, Chile · 2019 days ago · 35 km deep · 30 km away · felt by 2
  3. 4.445 km NE of Iquique, Chile · 2015 days ago · 64 km deep · 77 km away · felt by 29
  4. 4.014 km WSW of Iquique, Chile · 2015 days ago · 33 km deep · 33 km away · felt by 14
  5. 3.626 km NE of Iquique, Chile · 1998 days ago · 65 km deep · 66 km away · felt by 7
  6. 4.357 km N of Iquique, Chile · 1986 days ago · 52 km deep · 71 km away · felt by 10
  7. 2.752 km SSW of Iquique, Chile · 1978 days ago · 66 km deep · 66 km away · felt by 1
  8. 3.851 km S of Iquique, Chile · 1977 days ago · 32 km deep · 70 km away · felt by 5

Before

  1. 3.867 km SSE of Iquique, Chile · 2034 days ago · 66 km deep · 99 km away · felt by 5

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000dlcg. Read Sat, Oct 3, 2026, 12:06 AM UTC.