Chile earthquakes

M3.3 earthquake 102 km SW of San Antonio, Chile

A magnitude 3.3 earthquake struck 102 km SW of San Antonio, Chile on Sun, Aug 25, 1985, 8:39 AM GMT-4 (12:39 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.3 67 km SW of San Antonio, Chile. This one was a foreshock.

San Antonio 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
3.3 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1985-08-25 12:39:45 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
34.219° S, 72.418° 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: 8 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.484 km W of San Antonio, Chile · 14995 days ago · 33 km deep · 68 km away
  2. 5.367 km SW of San Antonio, Chile · 14981 days ago · 33 km deep · 35 km away
  3. 5.148 km NW of San Vicente, Chile · 14969 days ago · 54 km deep · 90 km away
  4. 4.553 km SW of San Antonio, Chile · 14966 days ago · 33 km deep · 49 km away
  5. 3.456 km WSW of San Antonio, Chile · 14966 days ago · 33 km deep · 48 km away
  6. 4.352 km WSW of San Antonio, Chile · 14966 days ago · 33 km deep · 52 km away
  7. 3.560 km WSW of San Antonio, Chile · 14966 days ago · 33 km deep · 51 km away
  8. 4.449 km WNW of Cartagena, Chile · 14963 days ago · 33 km deep · 92 km away

Before

  1. 4.381 km W of Santa Cruz, Chile · 15014 days ago · 33 km deep · 43 km away
  2. 4.647 km WNW of Cartagena, Chile · 15014 days ago · 33 km deep · 90 km away
  3. 4.881 km WNW of Cartagena, Chile · 15015 days ago · 33 km deep · 94 km away
  4. 5.261 km WSW of San Antonio, Chile · 15019 days ago · 33 km deep · 52 km away
  5. 4.280 km WNW of Cartagena, Chile · 15023 days ago · 33 km deep · 95 km away
  6. 4.385 km WNW of Santa Cruz, Chile · 15024 days ago · 33 km deep · 28 km away
  7. 4.434 km WNW of Cartagena, Chile · 15025 days ago · 33 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002j4r. Read Sat, Oct 3, 2026, 2:30 AM UTC.