M4.9 earthquake 28 km WNW of Ayna, Peru
A magnitude 4.9 earthquake struck 28 km WNW of Ayna, Peru on Tue, Mar 15, 1977, 7:38 AM GMT-5 (12:38 UTC), 50 km (31 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1977-03-15 12:38:35 UTC
- Depth
- 50.0 km (31.1 mi), shallow
- Epicenter
- 12.530° S, 74.153° 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.
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 0 in the 60 days after this one and 7 in the 30 days before it.
Before
- 4.545 km NNW of Ayna, Peru · 18094 days ago · 34 km deep · 29 km away
- 4.752 km NE of Paucarbamba, Peru · 18094 days ago · 31 km deep · 34 km away
- 5.666 km N of Ayna, Peru · 18095 days ago · 14 km deep · 54 km away
- 5.136 km NNW of Ayna, Peru · 18095 days ago · 43 km deep · 27 km away
- 5.668 km ENE of Salcabamba, Peru · 18095 days ago · 41 km deep · 63 km away
- 5.2central Peru · 18099 days ago · 22 km deep · 27 km away
- 4.648 km NNW of Kimbiri, Peru · 18118 days ago · 33 km deep · 45 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000mxg (also filed as iscgem701131). Read Tue, Sep 22, 2026, 4:25 PM UTC.