M4.4 earthquake 55 km W of Illapel, Chile
A magnitude 4.4 earthquake struck 55 km W of Illapel, Chile on Sat, Oct 6, 1973, 3:48 AM GMT-3 (06:48 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 58 km W of Illapel, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1973-10-06 06:48:06 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 31.732° S, 71.741° 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
- Stations used
- 8
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 5 in the 30 days before it.
After
- 3.952 km W of Illapel, Chile · 19353 days ago · 50 km deep · 3 km away
- 4.151 km WNW of Illapel, Chile · 19353 days ago · 33 km deep · 28 km away
- 3.996 km W of Illapel, Chile · 19353 days ago · 33 km deep · 41 km away
- 5.258 km W of Illapel, Chile · 19350 days ago · 39 km deep · 10 km away
- 4.786 km WSW of Illapel, Chile · 19349 days ago · 46 km deep · 31 km away
- 4.580 km WSW of Illapel, Chile · 19346 days ago · 69 km deep · 32 km away
- 4.857 km NNW of Valparaíso, Chile · 19320 days ago · 33 km deep · 92 km away
- 4.634 km SW of Salamanca, Chile · 19312 days ago · 97 km deep · 54 km away
Before
- 5.049 km W of Illapel, Chile · 19353 days ago · 46 km deep · 8 km away
- 6.724 km WSW of La Ligua, Chile · 19354 days ago · 33 km deep · 91 km away
- 4.643 km W of La Ligua, Chile · 19361 days ago · 42 km deep · 87 km away
- 5.01 km NW of Illapel, Chile · 19367 days ago · 39 km deep · 54 km away
- 4.7Near the coast of Valparaiso, Chile · 19380 days ago · 41 km deep · 84 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00003qn. Read Thu, Oct 1, 2026, 11:28 AM UTC.