M4.7 earthquake 86 km WSW of Illapel, Chile
A magnitude 4.7 earthquake struck 86 km WSW of Illapel, Chile on Wed, Oct 10, 1973, 2:56 AM GMT-3 (05:56 UTC), 46 km (29 mi) below the surface.
A larger quake followed: M4.8 57 km NNW of Valparaíso, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1973-10-10 05:56:31 UTC
- Depth
- 46.0 km (28.6 mi), shallow
- Epicenter
- 31.795° S, 72.062° 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.
- Stations used
- 25
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 3 in the 60 days after this one and 9 in the 30 days before it.
After
- 4.580 km WSW of Illapel, Chile · 19338 days ago · 69 km deep · 24 km away
- 4.857 km NNW of Valparaíso, Chile · 19311 days ago · 33 km deep · 87 km away
- 4.634 km SW of Salamanca, Chile · 19303 days ago · 97 km deep · 80 km away
Before
- 5.258 km W of Illapel, Chile · 19341 days ago · 39 km deep · 31 km away
- 3.996 km W of Illapel, Chile · 19344 days ago · 33 km deep · 11 km away
- 4.151 km WNW of Illapel, Chile · 19344 days ago · 33 km deep · 49 km away
- 3.952 km W of Illapel, Chile · 19344 days ago · 50 km deep · 34 km away
- 4.455 km W of Illapel, Chile · 19344 days ago · 33 km deep · 31 km away
- 5.049 km W of Illapel, Chile · 19344 days ago · 46 km deep · 38 km away
- 6.724 km WSW of La Ligua, Chile · 19345 days ago · 33 km deep · 97 km away
- 4.643 km W of La Ligua, Chile · 19352 days ago · 42 km deep · 87 km away
- 5.01 km NW of Illapel, Chile · 19358 days ago · 39 km deep · 85 km away
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00003sd. Read Tue, Sep 22, 2026, 3:49 PM UTC.