Chile earthquakes

M3.3 earthquake 51 km NNE of Iquique, Chile

A magnitude 3.3 earthquake struck 51 km NNE of Iquique, Chile on Tue, Aug 17, 2021, 12:53 AM GMT-4 (04:53 UTC), 50 km (31 mi) below the surface.

A larger quake followed: M4.3 92 km ENE 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
3.3 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-08-17 04:53:38 UTC
Depth
49.9 km (31.0 mi), shallow
Epicenter
19.778° S, 69.974° W
Region
Chile
Felt reports
6
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

6 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 4.9 km horizontally, 7.9 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
178°
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: 10 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.182 km NNE of Iquique, Chile · 1871 days ago · 63 km deep · 31 km away · felt by 3
  2. 2.826 km WSW of Iquique, Chile · 1859 days ago · 32 km deep · 74 km away · felt by 1
  3. 4.133 km W of Iquique, Chile · 1853 days ago · 24 km deep · 68 km away · felt by 9
  4. 4.2126 km SE of Arica, Chile · 1843 days ago · 119 km deep · 91 km away
  5. 4.392 km ENE of Iquique, Chile · 1842 days ago · 103 km deep · 78 km away · felt by 9
  6. 2.723 km SE of Iquique, Chile · 1840 days ago · 76 km deep · 67 km away · felt by 2
  7. 4.394 km S of Arica, Chile · 1828 days ago · 34 km deep · 60 km away · felt by 2
  8. 4.229 km SE of Iquique, Chile · 1823 days ago · 88 km deep · 73 km away · felt by 8
  9. 4.0Tarapaca, Chile · 1815 days ago · 113 km deep · 85 km away
  10. 3.911 km NNE of Iquique, Chile · 1815 days ago · 47 km deep · 40 km away · felt by 9

Before

  1. 4.141 km NNE of Iquique, Chile · 1876 days ago · 67 km deep · 12 km away · felt by 5
  2. 3.242 km NNE of Iquique, Chile · 1896 days ago · 54 km deep · 12 km away · felt by 3
  3. 2.315 km SSE of Iquique, Chile · 1902 days ago · 32 km deep · 65 km away · felt by 2
  4. 4.587 km SE of Arica, Chile · 1902 days ago · 108 km deep · 93 km away · felt by 2

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f7fi. Read Fri, Oct 2, 2026, 8:23 PM UTC.