Chile earthquakes

M4.5 earthquake 77 km SSE of Arica, Chile

A magnitude 4.5 earthquake struck 77 km SSE of Arica, Chile on Fri, Aug 5, 2022, 4:20 PM GMT-4 (20:20 UTC), 66 km (41 mi) below the surface.

A larger quake followed: M4.9 140 km NE of Iquique, Chile. This one was a foreshock.

Arica 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
4.5 (Mwr, regional moment), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-08-05 20:20:00 UTC
Depth
66.5 km (41.3 mi), shallow
Epicenter
19.136° S, 70.057° W
Region
Chile
Felt reports
2
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

2 people 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?

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Strike-slip
Moment magnitude
4.5 Mwr
Nodal plane 1
Strike 237°, dip 13°, rake -23°
Nodal plane 2
Strike 349°, dip 85°, rake -102°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.1 km horizontally, 5.3 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
110°
Stations used
74

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.9140 km NE of Iquique, Chile · 1519 days ago · 102 km deep · 92 km away · felt by 11
  2. 4.390 km ESE of Arica, Chile · 1517 days ago · 111 km deep · 73 km away
  3. 3.982 km NE of Iquique, Chile · 1511 days ago · 109 km deep · 83 km away · felt by 4
  4. 4.515 km NNW of Cami?a, Chile · 1504 days ago · 106 km deep · 58 km away
  5. 4.470 km ESE of Arica, Chile · 1497 days ago · 97 km deep · 49 km away · felt by 1
  6. 4.279 km SSW of Arica, Chile · 1494 days ago · 43 km deep · 64 km away
  7. 3.737 km NNE of Iquique, Chile · 1489 days ago · 54 km deep · 83 km away · felt by 3
  8. 4.3111 km ESE of Arica, Chile · 1488 days ago · 117 km deep · 97 km away
  9. 4.2Near the coast of Tarapaca, Chile · 1478 days ago · 51 km deep · 93 km away · felt by 8
  10. 4.447 km E of Arica, Chile · 1477 days ago · 121 km deep · 78 km away
  11. 3.923 km SSE of Cami?a, Chile · 1469 days ago · 102 km deep · 84 km away
  12. 4.480 km N of Iquique, Chile · 1467 days ago · 66 km deep · 39 km away · felt by 8
  13. 4.293 km SSE of Arica, Chile · 1467 days ago · 62 km deep · 17 km away · felt by 2
  14. 2.9Tarapaca, Chile · 1464 days ago · 51 km deep · 100 km away · felt by 2
  15. 4.183 km NE of Iquique, Chile · 1463 days ago · 97 km deep · 81 km away · felt by 1

Before

  1. 4.2Tarapaca, Chile · 1524 days ago · 116 km deep · 41 km away
  2. 4.443 km E of Arica, Chile · 1526 days ago · 130 km deep · 80 km away
  3. 4.081 km NNE of Iquique, Chile · 1533 days ago · 66 km deep · 49 km away · felt by 2
  4. 4.5Tarapaca, Chile · 1537 days ago · 91 km deep · 72 km away · felt by 7

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000i8i8. Read Sat, Oct 3, 2026, 3:13 PM UTC.