Chile earthquakes

M4.1 earthquake 51 km WNW of Valparaíso, Chile

A magnitude 4.1 earthquake struck 51 km WNW of Valparaíso, Chile on Mon, May 22, 2017, 9:05 PM GMT-4 (01:05 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M5.4 85 km W of San Antonio, Chile. This one was a foreshock.

Valparaíso 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
4.1 (Mwr, regional moment), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-05-23 01:05:11 UTC
Depth
16.4 km (10.2 mi), shallow
Epicenter
32.919° S, 72.165° W
Region
Chile
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was V, moderate 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 reverse
Moment magnitude
4.1 Mwr
Nodal plane 1
Strike 173°, dip 24°, rake 45°
Nodal plane 2
Strike 40°, dip 73°, rake 107°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.2 km horizontally, 4.9 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
178°
Stations used
50

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 149 in the 30 days before it.

After

  1. 4.167 km WNW of La Ligua, Chile · 3412 days ago · 33 km deep · 91 km away · felt by 1
  2. 3.949 km WNW of Valparaíso, Chile · 3412 days ago · 17 km deep · 3 km away · felt by 3
  3. 4.262 km W of Valparaíso, Chile · 3412 days ago · 18 km deep · 11 km away
  4. 4.558 km W of Valparaíso, Chile · 3401 days ago · 10 km deep · 18 km away · felt by 7
  5. 4.321 km W of Valparaíso, Chile · 3399 days ago · 26 km deep · 33 km away · felt by 15
  6. 4.5Near the coast of Valparaiso, Chile · 3393 days ago · 22 km deep · 94 km away · felt by 1
  7. 4.442 km W of Valparaíso, Chile · 3379 days ago · 21 km deep · 13 km away · felt by 12
  8. 4.960 km WSW of San Antonio, Chile · 3374 days ago · 13 km deep · 90 km away · felt by 33
  9. 4.067 km W of San Antonio, Chile · 3374 days ago · 9 km deep · 90 km away · felt by 5
  10. 4.143 km NNW of Valparaíso, Chile · 3371 days ago · 18 km deep · 35 km away
  11. 4.695 km W of San Antonio, Chile · 3367 days ago · 12 km deep · 99 km away · felt by 4
  12. 5.485 km W of San Antonio, Chile · 3367 days ago · 10 km deep · 95 km away · felt by 17

Before

  1. 4.273 km W of Valparaíso, Chile · 3424 days ago · 12 km deep · 26 km away · felt by 1
  2. 4.262 km W of Valparaíso, Chile · 3426 days ago · 13 km deep · 13 km away
  3. 4.311 km S of Valparaíso, Chile · 3428 days ago · 31 km deep · 55 km away · felt by 2
  4. 5.239 km WNW of Valparaíso, Chile · 3428 days ago · 15 km deep · 13 km away · felt by 12
  5. 3.9Off the coast of Valparaiso, Chile · 3433 days ago · 20 km deep · 93 km away
  6. 3.971 km W of Valparaíso, Chile · 3437 days ago · 8 km deep · 20 km away
  7. 4.460 km W of Valparaíso, Chile · 3438 days ago · 18 km deep · 19 km away · felt by 2
  8. 4.257 km W of Valparaíso, Chile · 3440 days ago · 13 km deep · 17 km away
  9. 4.154 km W of Valparaíso, Chile · 3440 days ago · 17 km deep · 12 km away · felt by 3
  10. 3.961 km W of Valparaíso, Chile · 3441 days ago · 16 km deep · 13 km away
  11. 4.251 km WSW of Valparaíso, Chile · 3443 days ago · 20 km deep · 33 km away
  12. 4.247 km WSW of Valparaíso, Chile · 3443 days ago · 21 km deep · 34 km away · felt by 2
  13. 3.948 km WSW of Valparaíso, Chile · 3443 days ago · 22 km deep · 37 km away · felt by 1
  14. 3.817 km SW of Valparaíso, Chile · 3443 days ago · 22 km deep · 43 km away
  15. 5.136 km WSW of Valparaíso, Chile · 3443 days ago · 19 km deep · 38 km away · felt by 25
  16. 4.444 km WSW of Valparaíso, Chile · 3443 days ago · 20 km deep · 36 km away · felt by 1
  17. 4.439 km WNW of Cartagena, Chile · 3443 days ago · 20 km deep · 54 km away · felt by 1
  18. 3.864 km WSW of Valparaíso, Chile · 3443 days ago · 21 km deep · 34 km away
  19. 4.138 km WSW of Valparaíso, Chile · 3443 days ago · 22 km deep · 39 km away · felt by 1
  20. 3.850 km WSW of Valparaíso, Chile · 3443 days ago · 23 km deep · 37 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008u8n. Read Fri, Oct 2, 2026, 3:42 AM UTC.