Chile earthquakes

M4.5 earthquake 157 km E of Iquique, Chile

A magnitude 4.5 earthquake struck 157 km E of Iquique, Chile on Sat, Mar 18, 2017, 7:26 PM GMT-3 (22:26 UTC), 116 km (72 mi) below the surface.

A larger quake followed: M5.7 164 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
4.5 (mwr), light
Local time
UTC
2017-03-18 22:26:45 UTC
Depth
115.7 km (71.9 mi), intermediate-depth
Epicenter
20.310° S, 68.651° 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 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?

Fault motion and ground failure

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

Faulting
Oblique normal
Moment magnitude
4.5 Mwr
Nodal plane 1
Strike 202°, dip 43°, rake -47°
Nodal plane 2
Strike 331°, dip 60°, rake -122°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.7 km horizontally, 5.1 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
31°
Stations used
112

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.0131 km ESE of Iquique, Chile · 3478 days ago · 102 km deep · 73 km away
  2. 4.8126 km ENE of Iquique, Chile · 3476 days ago · 103 km deep · 62 km away
  3. 4.3119 km ESE of Iquique, Chile · 3474 days ago · 120 km deep · 57 km away
  4. 3.9131 km ESE of Iquique, Chile · 3474 days ago · 106 km deep · 38 km away
  5. 4.4150 km ENE of Iquique, Chile · 3473 days ago · 128 km deep · 86 km away
  6. 4.4106 km ESE of Iquique, Chile · 3471 days ago · 110 km deep · 54 km away
  7. 4.1104 km ESE of Iquique, Chile · 3465 days ago · 98 km deep · 59 km away
  8. 4.4106 km ENE of Iquique, Chile · 3456 days ago · 103 km deep · 77 km away
  9. 4.3113 km ESE of Iquique, Chile · 3444 days ago · 98 km deep · 49 km away
  10. 5.4101 km NE of Iquique, Chile · 3444 days ago · 105 km deep · 99 km away · felt by 6
  11. 4.1137 km SE of Iquique, Chile · 3444 days ago · 103 km deep · 85 km away
  12. 4.2151 km N of Calama, Chile · 3440 days ago · 133 km deep · 89 km away
  13. 4.0143 km N of Calama, Chile · 3435 days ago · 119 km deep · 100 km away
  14. 4.3109 km E of Iquique, Chile · 3434 days ago · 98 km deep · 57 km away
  15. 4.1110 km E of Iquique, Chile · 3434 days ago · 95 km deep · 53 km away
  16. 4.0118 km ENE of Iquique, Chile · 3432 days ago · 106 km deep · 69 km away
  17. 4.0124 km WSW of Colchani, Bolivia · 3432 days ago · 199 km deep · 82 km away
  18. 5.7164 km ESE of Iquique, Chile · 3426 days ago · 116 km deep · 58 km away · felt by 7

Before

  1. 4.1117 km E of Iquique, Chile · 3494 days ago · 126 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20008t33. Read Wed, Sep 30, 2026, 2:01 PM UTC.