4.2

M4.2 Earthquake 81 km S of Pacocha, PeruApril 17, 2026

2026-04-17 03:54:28 UTC (2 days ago)

On April 17, 2026 at 03:54 UTC, a magnitude 4.2 shallow crustal earthquake struck 81 km S of Pacocha, Peru, at a depth of 43.7 km and coordinates -18.3860°, -71.3140°.

Map showing earthquake epicenter at -18.39°, -71.31°

Earthquake Details

Magnitude
4.2 mb
Depth
43.7 km
shallow crustal
Location
-18.3860°N
-71.3140°E

Technical Information

Event ID
us6000sqq2
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
15
Azimuthal Gap
254.0°
Min Station Distance
0.923°
RMS Residual
0.79 sec
Last Updated
2026-04-17 21:05:36 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Pacocha, Peru?

The magnitude 4.2 earthquake that struck 81 km S of Pacocha, Peru on April 17, 2026 at 03:54 UTC had a depth of 43.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.