M5.9 earthquake 25 km WNW of Tisco, Peru
A magnitude 5.9 earthquake struck 25 km WNW of Tisco, Peru on Sat, Dec 31, 1977, 2:53 AM GMT-5 (07:53 UTC), 158 km (98 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.9 (mb), moderate
- Local time
- UTC
- 1977-12-31 07:53:18 UTC
- Depth
- 158.0 km (98.2 mi), intermediate-depth
- Epicenter
- 15.300° S, 71.680° 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
- CONSTRAINED_BY_DEPTH_PHASES
- Stations used
- 198
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000sa7 (also filed as gcmt19771231075318, iscgem689711). Read Tue, Sep 22, 2026, 5:56 AM UTC.