Chile earthquakes

M4.6 earthquake 94 km NW of Vallenar, Chile

A magnitude 4.6 earthquake struck 94 km NW of Vallenar, Chile on Sat, Sep 23, 2017, 11:30 PM GMT-3 (02:30 UTC), 32 km (20 mi) below the surface.

Vallenar 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
4.6 (mwr), light
Local time
UTC
2017-09-24 02:30:00 UTC
Depth
31.9 km (19.8 mi), shallow
Epicenter
27.878° S, 71.318° W
Region
Chile
Felt reports
3
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

3 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
Reverse (thrust)
Moment magnitude
4.6 Mwr
Nodal plane 1
Strike 9°, dip 40°, rake 92°
Nodal plane 2
Strike 187°, dip 50°, rake 88°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.3 km horizontally, 4.0 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
99°
Stations used
148

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 7 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.458 km WNW of Vallenar, Chile · 3287 days ago · 34 km deep · 46 km away
  2. 4.261 km WNW of Vallenar, Chile · 3286 days ago · 21 km deep · 53 km away
  3. 4.224 km NNW of Vallenar, Chile · 3282 days ago · 61 km deep · 72 km away
  4. 4.364 km W of Vallenar, Chile · 3268 days ago · 40 km deep · 89 km away
  5. 3.886 km W of Vallenar, Chile · 3268 days ago · 28 km deep · 98 km away
  6. 4.281 km WNW of Vallenar, Chile · 3243 days ago · 39 km deep · 45 km away
  7. 4.1130 km ENE of Copiapó, Chile · 3237 days ago · 8 km deep · 37 km away

Before

  1. 3.6122 km NW of Vallenar, Chile · 3289 days ago · 7 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000atse. Read Fri, Sep 25, 2026, 10:08 PM UTC.