M4.6 earthquake 6 km NNE of La Serena, Chile
A magnitude 4.6 earthquake struck 6 km NNE of La Serena, Chile on Sat, Mar 15, 1975, 8:38 AM GMT-4 (12:38 UTC), 61 km (38 mi) below the surface.
A larger quake followed: M5.1 62 km WSW of Coquimbo, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1975-03-15 12:38:00 UTC
- Depth
- 61.0 km (37.9 mi), shallow
- Epicenter
- 29.858° S, 71.216° 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
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 4 in the 60 days after this one and 11 in the 30 days before it.
After
- 5.162 km WSW of Coquimbo, Chile · 18825 days ago · 19 km deep · 77 km away
- 4.234 km NNW of La Serena, Chile · 18821 days ago · 33 km deep · 32 km away
- 4.216 km NW of Coquimbo, Chile · 18798 days ago · 51 km deep · 23 km away
- 4.445 km NW of Coquimbo, Chile · 18777 days ago · 17 km deep · 47 km away
Before
- 4.617 km SSE of Coquimbo, Chile · 18827 days ago · 62 km deep · 25 km away
- 5.38 km NNW of Coquimbo, Chile · 18827 days ago · 47 km deep · 16 km away
- 4.232 km NW of Coquimbo, Chile · 18828 days ago · 34 km deep · 39 km away
- 4.57 km SSE of Coquimbo, Chile · 18828 days ago · 58 km deep · 19 km away
- 4.534 km NNW of La Serena, Chile · 18828 days ago · 33 km deep · 31 km away
- 5.12 km ENE of Coquimbo, Chile · 18828 days ago · 59 km deep · 13 km away
- 5.128 km NW of Coquimbo, Chile · 18829 days ago · 26 km deep · 33 km away
- 5.215 km NW of La Serena, Chile · 18829 days ago · 51 km deep · 15 km away
- 5.327 km NNW of La Serena, Chile · 18829 days ago · 33 km deep · 24 km away
- 6.91 km N of Coquimbo, Chile · 18829 days ago · 4 km deep · 15 km away
- 4.664 km N of La Serena, Chile · 18830 days ago · 62 km deep · 60 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000a8b. Read Wed, Sep 30, 2026, 10:55 AM UTC.