M6.5 earthquake 41 km S of Mazuko, Peru
A magnitude 6.5 earthquake struck 41 km S of Mazuko, Peru on Fri, Apr 27, 1928, 3:35 PM GMT-5 (20:35 UTC), 25 km (16 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.5 (mw), strong
- Local time
- UTC
- 1928-04-27 20:35:00 UTC
- Depth
- 25.0 km (15.5 mi), shallow
- Epicenter
- 13.476° S, 70.402° W
- Region
- Peru
- Strongest shaking
- VI, strong shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VI, strong shaking
- Peak ground acceleration
- 21.7% of gravity
- Peak ground velocity
- 3.0 cm/s
- Map
- Automatic

Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
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 1 in the 30 days before it.
Before
Earthquakes todayPeru earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem908650. Read Wed, Sep 23, 2026, 5:36 AM UTC.