Chile earthquakes

M4.4 earthquake 42 km W of Valparaíso, Chile

A magnitude 4.4 earthquake struck 42 km W of Valparaíso, Chile on Sat, Jul 1, 2017, 1:17 PM GMT-4 (17:17 UTC), 21 km (13 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
4.4 (mwr), light
Local time
UTC
2017-07-01 17:17:11 UTC
Depth
21.4 km (13.3 mi), shallow
Epicenter
33.015° S, 72.082° W
Region
Chile
Felt reports
12
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

12 people 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
Reverse (thrust)
Moment magnitude
4.4 Mwr
Nodal plane 1
Strike 178°, dip 77°, rake 82°
Nodal plane 2
Strike 30°, dip 15°, rake 121°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.6 km horizontally, 5.6 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
69°
Stations used
82

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.960 km WSW of San Antonio, Chile · 3373 days ago · 13 km deep · 80 km away · felt by 33
  2. 4.067 km W of San Antonio, Chile · 3373 days ago · 9 km deep · 81 km away · felt by 5
  3. 4.143 km NNW of Valparaíso, Chile · 3369 days ago · 18 km deep · 38 km away
  4. 4.695 km W of San Antonio, Chile · 3365 days ago · 12 km deep · 93 km away · felt by 4
  5. 5.485 km W of San Antonio, Chile · 3365 days ago · 10 km deep · 89 km away · felt by 17
  6. 4.330 km W of Valparaíso, Chile · 3357 days ago · 23 km deep · 13 km away · felt by 32
  7. 4.340 km W of Valparaíso, Chile · 3356 days ago · 18 km deep · 8 km away · felt by 17
  8. 4.330 km WNW of Hacienda La Calera, Chile · 3327 days ago · 28 km deep · 66 km away
  9. 4.250 km W of Valparaíso, Chile · 3320 days ago · 18 km deep · 8 km away · felt by 31

Before

  1. 4.321 km W of Valparaíso, Chile · 3397 days ago · 26 km deep · 21 km away · felt by 15
  2. 4.558 km W of Valparaíso, Chile · 3399 days ago · 10 km deep · 17 km away · felt by 7

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us100095r7. Read Wed, Sep 30, 2026, 5:26 PM UTC.