Chile earthquakes

M4.1 earthquake 49 km E of Arica, Chile

A magnitude 4.1 earthquake struck 49 km E of Arica, Chile on Mon, Sep 21, 2020, 5:18 PM GMT-3 (20:18 UTC), 103 km (64 mi) below the surface.

A larger quake followed: M4.9 17 km ENE of Palca, Peru. This one was a foreshock.

Arica forecastMore in Chile

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-09-21 20:18:47 UTC
Depth
103.0 km (64.0 mi), intermediate-depth
Epicenter
18.494° S, 69.829° W
Region
Chile
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, 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 4.9 km horizontally, 4.9 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
47°
Stations used
55

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 0 in the 30 days before it.

After

  1. 4.3110 km SE of Arica, Chile · 2186 days ago · 124 km deep · 75 km away · felt by 1
  2. 3.892 km S of Arica, Chile · 2183 days ago · 57 km deep · 96 km away · felt by 2
  3. 4.1126 km ESE of Arica, Chile · 2173 days ago · 136 km deep · 82 km away
  4. 4.179 km ESE of Arica, Chile · 2169 days ago · 119 km deep · 32 km away
  5. 4.917 km ENE of Palca, Peru · 2165 days ago · 150 km deep · 87 km away · felt by 1
  6. 4.646 km ESE of Arica, Chile · 2162 days ago · 86 km deep · 21 km away
  7. 4.251 km ESE of Arica, Chile · 2160 days ago · 134 km deep · 18 km away
  8. 4.532 km SE of Tacna, Peru · 2143 days ago · 131 km deep · 39 km away · felt by 3

Earthquakes todayChile earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000bzft. Read Sat, Oct 3, 2026, 7:58 AM UTC.