Chile earthquakes

M4.2 earthquake 103 km ESE of Iquique, Chile

A magnitude 4.2 earthquake struck 103 km ESE of Iquique, Chile on Thu, Jul 29, 2021, 6:03 PM GMT-4 (22:03 UTC), 101 km (62 mi) below the surface.

A larger quake followed: M4.9 136 km ESE of Iquique, Chile. This one was a foreshock.

Pozo Almonte 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-07-29 22:03:05 UTC
Depth
100.5 km (62.5 mi), intermediate-depth
Epicenter
20.488° S, 69.204° W
Region
Chile
Felt reports
5
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

5 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 5.1 km horizontally, 4.6 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
65°
Stations used
42

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 4.4Tarapaca, Chile · 1889 days ago · 109 km deep · 17 km away · felt by 2
  2. 4.1101 km SSE of Iquique, Chile · 1887 days ago · 64 km deep · 86 km away · felt by 4
  3. 4.3141 km N of Calama, Chile · 1885 days ago · 134 km deep · 89 km away
  4. 4.1158 km ESE of Iquique, Chile · 1877 days ago · 108 km deep · 60 km away
  5. 4.9136 km ESE of Iquique, Chile · 1866 days ago · 103 km deep · 48 km away · felt by 9
  6. 4.1112 km E of Iquique, Chile · 1865 days ago · 104 km deep · 27 km away · felt by 3
  7. 4.193 km ESE of Iquique, Chile · 1849 days ago · 94 km deep · 23 km away · felt by 4
  8. 4.3160 km N of Calama, Chile · 1845 days ago · 104 km deep · 74 km away
  9. 4.5139 km E of Iquique, Chile · 1843 days ago · 118 km deep · 59 km away · felt by 1
  10. 4.392 km ENE of Iquique, Chile · 1842 days ago · 103 km deep · 50 km away · felt by 9
  11. 2.723 km SE of Iquique, Chile · 1840 days ago · 76 km deep · 85 km away · felt by 2
  12. 4.5142 km E of Iquique, Chile · 1833 days ago · 119 km deep · 42 km away · felt by 1

Before

  1. 4.283 km SSE of Iquique, Chile · 1900 days ago · 88 km deep · 87 km away · felt by 6
  2. 2.315 km SSE of Iquique, Chile · 1902 days ago · 32 km deep · 97 km away · felt by 2
  3. 4.3132 km E of Iquique, Chile · 1902 days ago · 110 km deep · 32 km away · felt by 2
  4. 5.2150 km E of Iquique, Chile · 1912 days ago · 108 km deep · 54 km away · felt by 38
  5. 4.190 km ENE of Iquique, Chile · 1913 days ago · 101 km deep · 82 km away · felt by 2
  6. 4.7147 km N of Calama, Chile · 1913 days ago · 118 km deep · 89 km away · felt by 1
  7. 4.3102 km E of Iquique, Chile · 1918 days ago · 92 km deep · 35 km away · felt by 11
  8. 4.0150 km ESE of Iquique, Chile · 1918 days ago · 107 km deep · 56 km away
  9. 4.0138 km N of Calama, Chile · 1921 days ago · 117 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f0ev. Read Fri, Oct 2, 2026, 8:22 PM UTC.