Chile earthquakes

M4.6 earthquake 6 km N of La Ligua, Chile

A magnitude 4.6 earthquake struck 6 km N of La Ligua, Chile on Thu, Aug 30, 2018, 6:43 PM GMT-3 (21:43 UTC), 48 km (30 mi) below the surface.

A larger quake followed: M5.0 64 km NNE of San Felipe, Chile. This one was a foreshock.

La Ligua 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
2018-08-30 21:43:39 UTC
Depth
48.2 km (30.0 mi), shallow
Epicenter
32.392° S, 71.230° W
Region
Chile
Felt reports
56
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

56 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
Strike-slip
Moment magnitude
4.6 Mwr
Nodal plane 1
Strike 71°, dip 51°, rake -165°
Nodal plane 2
Strike 331°, dip 78°, rake -40°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.8 km horizontally, 4.6 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
65°
Stations used
233

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 6 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.421 km E of Salamanca, Chile · 2949 days ago · 104 km deep · 80 km away
  2. 5.064 km NNE of San Felipe, Chile · 2949 days ago · 96 km deep · 74 km away · felt by 28
  3. 4.536 km WSW of La Ligua, Chile · 2935 days ago · 32 km deep · 39 km away · felt by 6
  4. 4.137 km WSW of La Ligua, Chile · 2935 days ago · 21 km deep · 40 km away
  5. 4.054 km W of La Ligua, Chile · 2920 days ago · 21 km deep · 56 km away · felt by 1
  6. 4.121 km NW of Hacienda La Calera, Chile · 2897 days ago · 40 km deep · 29 km away · felt by 1

Before

  1. 4.349 km WNW of La Ligua, Chile · 2962 days ago · 53 km deep · 47 km away · felt by 1
  2. 3.122 km NW of Valparaíso, Chile · 2965 days ago · 28 km deep · 73 km away · felt by 3

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000h5qu. Read Sun, Sep 27, 2026, 11:05 AM UTC.