Chile earthquakes

M4.0 earthquake 14 km WSW of Iquique, Chile

A magnitude 4.0 earthquake struck 14 km WSW of Iquique, Chile on Sun, Mar 28, 2021, 6:20 AM GMT-3 (09:20 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.3 57 km N 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
4.0 (ML, local (Richter)), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-03-28 09:20:14 UTC
Depth
33.2 km (20.6 mi), shallow
Epicenter
20.274° S, 70.277° W
Region
Chile
Felt reports
14
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

14 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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 3.4 km horizontally, 11.2 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
174°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 3.626 km NE of Iquique, Chile · 1998 days ago · 65 km deep · 41 km away · felt by 7
  2. 4.357 km N of Iquique, Chile · 1986 days ago · 52 km deep · 67 km away · felt by 10
  3. 2.752 km SSW of Iquique, Chile · 1978 days ago · 66 km deep · 45 km away · felt by 1
  4. 3.851 km S of Iquique, Chile · 1977 days ago · 32 km deep · 46 km away · felt by 5

Before

  1. 4.445 km NE of Iquique, Chile · 2016 days ago · 64 km deep · 59 km away · felt by 29
  2. 3.122 km NW of Iquique, Chile · 2019 days ago · 35 km deep · 23 km away · felt by 2
  3. 3.656 km ESE of Iquique, Chile · 2021 days ago · 31 km deep · 65 km away · felt by 6
  4. 4.144 km W of Iquique, Chile · 2022 days ago · 38 km deep · 33 km away · felt by 9
  5. 3.867 km SSE of Iquique, Chile · 2035 days ago · 66 km deep · 69 km away · felt by 5

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000dx5d. Read Sat, Oct 3, 2026, 7:53 AM UTC.