M4.5 earthquake 39 km W of Valparaíso, Chile
A magnitude 4.5 earthquake struck 39 km W of Valparaíso, Chile on Wed, Aug 7, 1985, 7:10 AM GMT-4 (11:10 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.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1985-08-07 11:10:28 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 33.087° S, 72.043° 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 10 in the 30 days before it.
After
- 4.442 km W of Valparaíso, Chile · 15026 days ago · 33 km deep · 4 km away
- 4.434 km WNW of Cartagena, Chile · 15021 days ago · 33 km deep · 39 km away
- 4.280 km WNW of Cartagena, Chile · 15018 days ago · 33 km deep · 48 km away
- 5.261 km WSW of San Antonio, Chile · 15014 days ago · 33 km deep · 78 km away
- 4.881 km WNW of Cartagena, Chile · 15011 days ago · 33 km deep · 50 km away
- 4.647 km WNW of Cartagena, Chile · 15010 days ago · 33 km deep · 41 km away
- 4.274 km WSW of Valparaíso, Chile · 15009 days ago · 33 km deep · 37 km away
- 4.484 km W of San Antonio, Chile · 14991 days ago · 33 km deep · 73 km away
- 3.289 km WSW of Valparaíso, Chile · 14991 days ago · 33 km deep · 52 km away
- 3.941 km WNW of Cartagena, Chile · 14983 days ago · 33 km deep · 32 km away
- 5.73 km SSE of San Antonio, Chile · 14977 days ago · 47 km deep · 73 km away
Before
- 4.698 km W of Cartagena, Chile · 15046 days ago · 33 km deep · 70 km away
- 5.129 km W of Valparaíso, Chile · 15048 days ago · 33 km deep · 10 km away
- 5.531 km NNW of Valparaíso, Chile · 15048 days ago · 33 km deep · 47 km away
- 4.537 km NW of Valparaíso, Chile · 15048 days ago · 33 km deep · 30 km away
- 4.979 km WSW of Valparaíso, Chile · 15051 days ago · 33 km deep · 42 km away
- 4.570 km W of Cartagena, Chile · 15053 days ago · 33 km deep · 58 km away
- 3.574 km W of Valparaíso, Chile · 15054 days ago · 33 km deep · 36 km away
- 5.545 km W of Valparaíso, Chile · 15054 days ago · 29 km deep · 14 km away
- 4.837 km WNW of Valparaíso, Chile · 15056 days ago · 45 km deep · 25 km away
- 4.454 km WNW of Valparaíso, Chile · 15056 days ago · 33 km deep · 23 km away
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002hfk. Read Mon, Sep 28, 2026, 3:35 PM UTC.