Chile earthquakes

M4.3 earthquake 92 km ENE of Iquique, Chile

A magnitude 4.3 earthquake struck 92 km ENE of Iquique, Chile on Thu, Sep 16, 2021, 11:40 PM GMT-3 (02:40 UTC), 103 km (64 mi) below the surface.

A larger quake followed: M4.5 142 km E of Iquique, Chile. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-09-17 02:40:18 UTC
Depth
103.2 km (64.2 mi), intermediate-depth
Epicenter
20.047° S, 69.280° 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 4.6 km horizontally, 2.8 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
70°
Stations used
59

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.723 km SE of Iquique, Chile · 1840 days ago · 76 km deep · 84 km away · felt by 2
  2. 4.5142 km E of Iquique, Chile · 1833 days ago · 119 km deep · 65 km away · felt by 1
  3. 4.4138 km ESE of Iquique, Chile · 1830 days ago · 109 km deep · 96 km away · felt by 3
  4. 4.229 km SE of Iquique, Chile · 1824 days ago · 88 km deep · 86 km away · felt by 8
  5. 4.0Tarapaca, Chile · 1816 days ago · 113 km deep · 23 km away
  6. 3.911 km NNE of Iquique, Chile · 1815 days ago · 47 km deep · 87 km away · felt by 9
  7. 3.89 km SSW of Iquique, Chile · 1807 days ago · 41 km deep · 100 km away · felt by 6
  8. 4.2142 km E of Iquique, Chile · 1797 days ago · 114 km deep · 66 km away
  9. 4.0115 km ESE of Iquique, Chile · 1797 days ago · 115 km deep · 83 km away · felt by 1
  10. 2.720 km SE of Iquique, Chile · 1791 days ago · 54 km deep · 85 km away · felt by 1
  11. 4.090 km NE of Iquique, Chile · 1789 days ago · 102 km deep · 48 km away · felt by 1

Before

  1. 4.2126 km SE of Arica, Chile · 1843 days ago · 119 km deep · 95 km away
  2. 4.5139 km E of Iquique, Chile · 1843 days ago · 118 km deep · 49 km away · felt by 1
  3. 4.193 km ESE of Iquique, Chile · 1849 days ago · 94 km deep · 65 km away · felt by 4
  4. 4.1112 km E of Iquique, Chile · 1866 days ago · 104 km deep · 33 km away · felt by 3
  5. 4.9136 km ESE of Iquique, Chile · 1866 days ago · 103 km deep · 98 km away · felt by 9
  6. 4.182 km NNE of Iquique, Chile · 1871 days ago · 63 km deep · 82 km away · felt by 3

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fbzt. Read Sat, Oct 3, 2026, 2:33 AM UTC.