M5.5 earthquake 32 km WSW of Valparaíso, Chile
A magnitude 5.5 earthquake struck 32 km WSW of Valparaíso, Chile on Sun, Jul 11, 1971, 5:59 PM GMT-4 (21:59 UTC), 39 km (24 mi) below the surface.
A larger quake followed: M5.6 38 km WSW of La Ligua, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (Mw, moment), moderate
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1971-07-11 21:59:57 UTC
- Depth
- 38.9 km (24.2 mi), shallow
- Epicenter
- 33.111° S, 71.962° 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.
- Magnitude uncertainty
- ±0.57
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 2 in the 60 days after this one and 6 in the 30 days before it.
After
- 5.130 km WNW of Valparaíso, Chile · 20171 days ago · 15 km deep · 22 km away
- 5.638 km WSW of La Ligua, Chile · 20151 days ago · 40 km deep · 71 km away
Before
- 6.449 km WNW of La Ligua, Chile · 20172 days ago · 40 km deep · 93 km away
- 5.034 km N of Valparaíso, Chile · 20172 days ago · 30 km deep · 50 km away
- 5.432 km NNW of Valparaíso, Chile · 20173 days ago · 37 km deep · 47 km away
- 5.539 km WNW of La Ligua, Chile · 20173 days ago · 30 km deep · 93 km away
- 5.964 km W of La Ligua, Chile · 20173 days ago · 24 km deep · 83 km away
- 7.819 km NNE of Hacienda La Calera, Chile · 20174 days ago · 61 km deep · 92 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem782116. Read Fri, Oct 2, 2026, 2:13 AM UTC.