Chile earthquakes

M4.4 earthquake 84 km W of San Antonio, Chile

A magnitude 4.4 earthquake struck 84 km W of San Antonio, Chile on Thu, Sep 12, 1985, 11:18 AM GMT-4 (15:18 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.7 3 km SSE of San Antonio, Chile. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1985-09-12 15:18:57 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
33.612° S, 72.523° 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.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 3.289 km WSW of Valparaíso, Chile · 14994 days ago · 33 km deep · 36 km away
  2. 3.941 km WNW of Cartagena, Chile · 14987 days ago · 33 km deep · 55 km away
  3. 5.73 km SSE of San Antonio, Chile · 14981 days ago · 47 km deep · 86 km away
  4. 5.367 km SW of San Antonio, Chile · 14980 days ago · 33 km deep · 62 km away
  5. 4.553 km SW of San Antonio, Chile · 14966 days ago · 33 km deep · 58 km away
  6. 3.456 km WSW of San Antonio, Chile · 14965 days ago · 33 km deep · 47 km away
  7. 4.352 km WSW of San Antonio, Chile · 14965 days ago · 33 km deep · 46 km away
  8. 3.560 km WSW of San Antonio, Chile · 14965 days ago · 33 km deep · 34 km away
  9. 4.449 km WNW of Cartagena, Chile · 14963 days ago · 33 km deep · 42 km away
  10. 4.446 km WSW of Valparaíso, Chile · 14956 days ago · 33 km deep · 65 km away
  11. 4.694 km N of Constitución, Chile · 14946 days ago · 33 km deep · 97 km away

Before

  1. 4.274 km WSW of Valparaíso, Chile · 15013 days ago · 33 km deep · 41 km away
  2. 3.3102 km SW of San Antonio, Chile · 15013 days ago · 33 km deep · 68 km away
  3. 4.647 km WNW of Cartagena, Chile · 15013 days ago · 33 km deep · 42 km away
  4. 4.881 km WNW of Cartagena, Chile · 15015 days ago · 33 km deep · 27 km away
  5. 5.261 km WSW of San Antonio, Chile · 15018 days ago · 33 km deep · 33 km away
  6. 4.280 km WNW of Cartagena, Chile · 15022 days ago · 33 km deep · 28 km away
  7. 4.385 km WNW of Santa Cruz, Chile · 15023 days ago · 33 km deep · 95 km away
  8. 4.434 km WNW of Cartagena, Chile · 15025 days ago · 33 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002jq3. Read Fri, Oct 2, 2026, 2:23 PM UTC.