Peru earthquakes

M4.2 earthquake 70 km SSW of Callao, Peru

A magnitude 4.2 earthquake struck 70 km SSW of Callao, Peru on Fri, Oct 4, 1974, 9:40 AM GMT-5 (14:40 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M7.2 87 km SW of Callao, Peru. This one was a foreshock.

Callao forecastMore in Peru

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1974-10-04 14:40:04 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
12.611° S, 77.446° W
Region
Peru
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
7

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.3107 km SW of Asia, Peru · 18991 days ago · 33 km deep · 85 km away
  2. 4.774 km WSW of Callao, Peru · 18991 days ago · 35 km deep · 44 km away
  3. 4.4108 km SW of Callao, Peru · 18990 days ago · 33 km deep · 40 km away
  4. 4.381 km WSW of Callao, Peru · 18990 days ago · 19 km deep · 36 km away
  5. 5.091 km WSW of Callao, Peru · 18989 days ago · 33 km deep · 67 km away
  6. 4.451 km WSW of Chilca, Peru · 18987 days ago · 33 km deep · 35 km away
  7. 4.883 km SW of Callao, Peru · 18986 days ago · 33 km deep · 32 km away
  8. 4.937 km SW of Mala, Peru · 18986 days ago · 33 km deep · 67 km away
  9. 5.368 km SW of Callao, Peru · 18985 days ago · 27 km deep · 25 km away
  10. 4.8101 km WSW of Chilca, Peru · 18985 days ago · 33 km deep · 44 km away
  11. 4.2115 km SW of Asia, Peru · 18984 days ago · 33 km deep · 89 km away
  12. 4.244 km WSW of Chilca, Peru · 18983 days ago · 33 km deep · 34 km away
  13. 4.045 km WSW of San Bartolo, Peru · 18982 days ago · 33 km deep · 32 km away
  14. 4.215 km SW of Chilca, Peru · 18981 days ago · 57 km deep · 66 km away
  15. 4.554 km SW of Santiago de Surco, Peru · 18972 days ago · 60 km deep · 18 km away
  16. 4.996 km WSW of Callao, Peru · 18963 days ago · 33 km deep · 47 km away
  17. 7.287 km SW of Callao, Peru · 18955 days ago · 6 km deep · 39 km away
  18. 5.451 km SW of Chilca, Peru · 18950 days ago · 33 km deep · 48 km away

Before

  1. 4.144 km W of Callao, Peru · 18991 days ago · 54 km deep · 58 km away
  2. 4.887 km W of Callao, Peru · 18992 days ago · 26 km deep · 76 km away
  3. 4.6117 km WSW of Callao, Peru · 18992 days ago · 33 km deep · 75 km away
  4. 4.868 km SW of Callao, Peru · 18992 days ago · 33 km deep · 32 km away
  5. 5.0120 km WSW of Callao, Peru · 18992 days ago · 33 km deep · 66 km away
  6. 7.677 km WSW of Callao, Peru · 18992 days ago · 13 km deep · 54 km away
  7. 5.064 km SW of Callao, Peru · 18998 days ago · 41 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000890. Read Fri, Oct 2, 2026, 9:25 PM UTC.