Chile earthquakes

M4.2 earthquake 44 km WSW of Valparaíso, Chile

A magnitude 4.2 earthquake struck 44 km WSW of Valparaíso, Chile on Fri, Apr 28, 2017, 2:21 PM GMT-3 (17:21 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M5.3 40 km SW of Valparaíso, Chile. This one was a foreshock.

El Quisco 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 (mwr), light
Local time
UTC
2017-04-28 17:21:47 UTC
Depth
21.9 km (13.6 mi), shallow
Epicenter
33.203° S, 72.065° W
Region
Chile
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

Fault motion and ground failure

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

Faulting
Reverse (thrust)
Moment magnitude
4.2 Mwr
Nodal plane 1
Strike 6°, dip 21°, rake 117°
Nodal plane 2
Strike 158°, dip 71°, rake 80°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.7 km horizontally, 5.0 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
69°
Stations used
77

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 125 in the 30 days before it.

After

  1. 3.750 km WNW of Cartagena, Chile · 3440 days ago · 20 km deep · 12 km away · felt by 1
  2. 4.551 km WSW of Valparaíso, Chile · 3440 days ago · 19 km deep · 7 km away · felt by 1
  3. 5.340 km SW of Valparaíso, Chile · 3440 days ago · 18 km deep · 13 km away · felt by 10
  4. 4.145 km WNW of Cartagena, Chile · 3440 days ago · 20 km deep · 17 km away · felt by 2
  5. 4.239 km SW of Valparaíso, Chile · 3440 days ago · 26 km deep · 14 km away · felt by 2
  6. 3.850 km WSW of Valparaíso, Chile · 3440 days ago · 23 km deep · 6 km away · felt by 1
  7. 4.138 km WSW of Valparaíso, Chile · 3440 days ago · 22 km deep · 9 km away · felt by 1
  8. 3.864 km WSW of Valparaíso, Chile · 3440 days ago · 21 km deep · 21 km away
  9. 4.439 km WNW of Cartagena, Chile · 3440 days ago · 20 km deep · 21 km away · felt by 1
  10. 4.444 km WSW of Valparaíso, Chile · 3440 days ago · 20 km deep · 3 km away · felt by 1
  11. 5.136 km WSW of Valparaíso, Chile · 3440 days ago · 19 km deep · 10 km away · felt by 25
  12. 3.817 km SW of Valparaíso, Chile · 3440 days ago · 22 km deep · 28 km away
  13. 3.948 km WSW of Valparaíso, Chile · 3440 days ago · 22 km deep · 5 km away · felt by 1
  14. 4.247 km WSW of Valparaíso, Chile · 3440 days ago · 21 km deep · 3 km away · felt by 2
  15. 4.251 km WSW of Valparaíso, Chile · 3440 days ago · 20 km deep · 7 km away
  16. 3.961 km W of Valparaíso, Chile · 3438 days ago · 16 km deep · 32 km away
  17. 4.154 km W of Valparaíso, Chile · 3437 days ago · 17 km deep · 25 km away · felt by 3
  18. 4.257 km W of Valparaíso, Chile · 3437 days ago · 13 km deep · 24 km away
  19. 4.460 km W of Valparaíso, Chile · 3435 days ago · 18 km deep · 25 km away · felt by 2
  20. 3.971 km W of Valparaíso, Chile · 3434 days ago · 8 km deep · 44 km away
  21. 3.9Off the coast of Valparaiso, Chile · 3430 days ago · 20 km deep · 65 km away
  22. 5.239 km WNW of Valparaíso, Chile · 3425 days ago · 15 km deep · 31 km away · felt by 12
  23. 4.311 km S of Valparaíso, Chile · 3424 days ago · 31 km deep · 40 km away · felt by 2
  24. 4.262 km W of Valparaíso, Chile · 3423 days ago · 13 km deep · 34 km away
  25. 4.273 km W of Valparaíso, Chile · 3421 days ago · 12 km deep · 38 km away · felt by 1
  26. 4.151 km WNW of Valparaíso, Chile · 3416 days ago · 16 km deep · 33 km away · felt by 1
  27. 3.949 km WNW of Valparaíso, Chile · 3409 days ago · 17 km deep · 30 km away · felt by 3
  28. 4.262 km W of Valparaíso, Chile · 3409 days ago · 18 km deep · 36 km away
  29. 4.558 km W of Valparaíso, Chile · 3397 days ago · 10 km deep · 24 km away · felt by 7
  30. 4.321 km W of Valparaíso, Chile · 3395 days ago · 26 km deep · 24 km away · felt by 15

Before

  1. 4.651 km WSW of Valparaíso, Chile · 3440 days ago · 22 km deep · 7 km away · felt by 1
  2. 4.347 km WSW of Valparaíso, Chile · 3440 days ago · 20 km deep · 3 km away · felt by 1
  3. 4.639 km NW of Cartagena, Chile · 3440 days ago · 24 km deep · 18 km away · felt by 1
  4. 3.639 km WSW of Valparaíso, Chile · 3440 days ago · 23 km deep · 6 km away
  5. 4.660 km WSW of Valparaíso, Chile · 3440 days ago · 10 km deep · 16 km away · felt by 1
  6. 5.818 km WSW of Valparaíso, Chile · 3440 days ago · 27 km deep · 26 km away · felt by 52
  7. 5.444 km WSW of Valparaíso, Chile · 3440 days ago · 22 km deep · 4 km away · felt by 2
  8. 4.551 km WSW of Valparaíso, Chile · 3440 days ago · 20 km deep · 8 km away · felt by 1
  9. 5.147 km WSW of Valparaíso, Chile · 3440 days ago · 10 km deep · 4 km away · felt by 2
  10. 4.645 km WSW of Valparaíso, Chile · 3440 days ago · 21 km deep · 5 km away · felt by 1
  11. 4.338 km SW of Valparaíso, Chile · 3440 days ago · 23 km deep · 13 km away
  12. 4.636 km SW of Valparaíso, Chile · 3440 days ago · 22 km deep · 14 km away · felt by 1
  13. 4.740 km SW of Valparaíso, Chile · 3440 days ago · 24 km deep · 16 km away · felt by 1
  14. 5.937 km WSW of Valparaíso, Chile · 3440 days ago · 22 km deep · 9 km away · felt by 325
  15. 3.942 km SW of Valparaíso, Chile · 3441 days ago · 22 km deep · 8 km away · felt by 1
  16. 4.335 km WSW of Valparaíso, Chile · 3442 days ago · 29 km deep · 10 km away
  17. 4.738 km SW of Valparaíso, Chile · 3442 days ago · 20 km deep · 12 km away · felt by 11
  18. 4.142 km SW of Valparaíso, Chile · 3442 days ago · 24 km deep · 12 km away · felt by 1
  19. 5.139 km SW of Valparaíso, Chile · 3442 days ago · 23 km deep · 12 km away · felt by 57
  20. 3.915 km SW of Valparaíso, Chile · 3442 days ago · 29 km deep · 30 km away · felt by 3

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008ln3. Read Mon, Sep 28, 2026, 9:54 PM UTC.