Chile earthquakes

M4.4 earthquake 72 km WNW of Vallenar, Chile

A magnitude 4.4 earthquake struck 72 km WNW of Vallenar, Chile on Sat, Apr 15, 2017, 6:26 PM GMT-3 (21:26 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M4.7 85 km W of Vallenar, Chile. This one was a foreshock.

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
4.4 (mwr), light
Local time
UTC
2017-04-15 21:26:39 UTC
Depth
33.7 km (20.9 mi), shallow
Epicenter
28.441° S, 71.479° 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 VI, strong 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 202°, dip 28°, rake 111°
Nodal plane 2
Strike 359°, dip 64°, rake 79°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.0 km horizontally, 2.9 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
100°
Stations used
94

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.36 km WSW of Vallenar, Chile · 3443 days ago · 75 km deep · 67 km away
  2. 4.785 km W of Vallenar, Chile · 3435 days ago · 20 km deep · 30 km away · felt by 3
  3. 4.778 km W of Vallenar, Chile · 3434 days ago · 21 km deep · 30 km away · felt by 1
  4. 4.388 km WSW of Copiapó, Chile · 3405 days ago · 32 km deep · 83 km away · felt by 1
  5. 4.2125 km NW of Vallenar, Chile · 3402 days ago · 10 km deep · 75 km away
  6. 3.994 km WSW of Vallenar, Chile · 3402 days ago · 10 km deep · 43 km away
  7. 4.3128 km NW of Vallenar, Chile · 3401 days ago · 10 km deep · 75 km away
  8. 4.2120 km NW of Vallenar, Chile · 3400 days ago · 12 km deep · 73 km away · felt by 2

Before

  1. 4.3Near the coast of Atacama, Chile · 3481 days ago · 60 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008hzb. Read Tue, Sep 29, 2026, 4:47 PM UTC.