M4.6 earthquake 91 km NW of Copiapó, Chile
A magnitude 4.6 earthquake struck 91 km NW of Copiapó, Chile on Tue, Aug 7, 1973, 12:59 AM GMT-4 (04:59 UTC), 34 km (21 mi) below the surface.
A larger quake followed: M6.3 83 km NW of Copiapó, 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
- 1973-08-07 04:59:03 UTC
- Depth
- 34.0 km (21.1 mi), shallow
- Epicenter
- 26.847° S, 71.044° 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: 16 in the 60 days after this one and 39 in the 30 days before it.
After
- 4.080 km NW of Copiapó, Chile · 19408 days ago · 38 km deep · 17 km away
- 5.989 km NW of Copiapó, Chile · 19408 days ago · 34 km deep · 19 km away
- 5.184 km NW of Copiapó, Chile · 19408 days ago · 13 km deep · 16 km away
- 4.384 km NW of Copiapó, Chile · 19408 days ago · 36 km deep · 19 km away
- 4.998 km WSW of Diego de Almagro, Chile · 19408 days ago · 19 km deep · 20 km away
- 6.383 km NW of Copiapó, Chile · 19408 days ago · 14 km deep · 13 km away
- 4.387 km W of Diego de Almagro, Chile · 19407 days ago · 33 km deep · 54 km away
- 4.591 km WSW of Diego de Almagro, Chile · 19407 days ago · 17 km deep · 22 km away
- 5.782 km WSW of Diego de Almagro, Chile · 19401 days ago · 29 km deep · 33 km away
- 4.961 km WSW of Diego de Almagro, Chile · 19401 days ago · 25 km deep · 51 km away
- 4.883 km WSW of Diego de Almagro, Chile · 19401 days ago · 28 km deep · 36 km away
- 3.951 km NW of Copiapó, Chile · 19390 days ago · 33 km deep · 43 km away
- 5.083 km NW of Copiapó, Chile · 19366 days ago · 33 km deep · 8 km away
- 5.273 km WNW of Copiapó, Chile · 19361 days ago · 33 km deep · 25 km away
- 4.995 km NW of Copiapó, Chile · 19349 days ago · 33 km deep · 6 km away
- 4.779 km NW of Copiapó, Chile · 19349 days ago · 33 km deep · 12 km away
Before
- 6.184 km NW of Copiapó, Chile · 19408 days ago · 25 km deep · 18 km away
- 4.695 km NW of Copiapó, Chile · 19409 days ago · 33 km deep · 5 km away
- 4.599 km NW of Copiapó, Chile · 19409 days ago · 19 km deep · 8 km away
- 4.185 km WNW of Copiapó, Chile · 19413 days ago · 33 km deep · 16 km away
- 5.789 km NW of Copiapó, Chile · 19414 days ago · 16 km deep · 5 km away
- 4.788 km NW of Copiapó, Chile · 19414 days ago · 33 km deep · 6 km away
- 5.288 km WNW of Copiapó, Chile · 19414 days ago · 33 km deep · 34 km away
- 5.275 km WNW of Copiapó, Chile · 19414 days ago · 33 km deep · 33 km away
- 4.9102 km NW of Copiapó, Chile · 19415 days ago · 33 km deep · 11 km away
- 5.149 km WSW of Diego de Almagro, Chile · 19415 days ago · 33 km deep · 63 km away
- 4.786 km WNW of Copiapó, Chile · 19415 days ago · 33 km deep · 25 km away
- 5.387 km NW of Copiapó, Chile · 19415 days ago · 33 km deep · 15 km away
- 4.695 km NW of Copiapó, Chile · 19415 days ago · 33 km deep · 4 km away
- 5.184 km NW of Copiapó, Chile · 19415 days ago · 33 km deep · 18 km away
- 4.692 km NW of Copiapó, Chile · 19415 days ago · 33 km deep · 7 km away
- 6.3120 km WNW of Copiapó, Chile · 19415 days ago · 33 km deep · 55 km away
- 4.097 km WNW of Copiapó, Chile · 19419 days ago · 33 km deep · 15 km away
- 5.287 km WNW of Copiapó, Chile · 19420 days ago · 33 km deep · 28 km away
- 4.8105 km NW of Copiapó, Chile · 19432 days ago · 35 km deep · 14 km away
- 4.896 km WNW of Copiapó, Chile · 19433 days ago · 33 km deep · 28 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000030x. Read Sat, Sep 26, 2026, 10:43 AM UTC.