EARTHQUAKEM5.7

M5.7 earthquake near Leni, Italy

Map: the earthquake near Leni, Italy, with plate boundaries

A magnitude 5.7 earthquake struck 61 km (38 mi) west-northwest of Leni, Italy on Friday, October 23, 2026 at 10:19 UTC, at a depth of 10 km (6 mi), according to the U.S. Geological Survey. Shallow quakes like this one shake the surface hardest. The nearest city of a million or more people is Naples, Italy, about 236 km (147 mi) away.

USGS’s PAGER impact estimate is GREEN: little or no damage expected.

10 people reported feeling it to USGS “Did You Feel It?”.

MagnitudeM5.7
Depth10 km (6 mi)
Time (UTC)Oct 23 10:19
Location38.72°N 14.15°E
Nearest townLeni · 61 km
Energy5 kilotons TNT
Aftershocks M2.5+2
Tsunami flagNo
PAGER alertGREEN
Felt reports10
See it on the live 3D globe →Watch live on YouTube🔔 Get alerts near you

Why here?

This earthquake struck about 386 km (240 mi) from the nearest major plate boundary, which makes it an intraplate earthquake. These happen on old faults inside a plate, where stress from the plate’s slow movement is released. They are less common, but can surprise areas that rarely feel quakes.

The red lines on the map are plate boundaries.

What kind of fault?

USGS’s analysis of the seismic waves shows it was a thrust (reverse) earthquake: one block of crust was pushed up and over another, as happens where plates collide.

Shaking and impact

The strongest shaking USGS estimates was intensity 4 on the Modified Mercalli scale: light. About 2 people were exposed to moderate shaking or stronger (intensity 5 and up). USGS’s PAGER system estimates it most likely caused no deaths (90 percent probability). Early estimates are revised as reports come in.

How strong was it?

Magnitude is logarithmic: each whole step releases about 32 times more energy. This magnitude 5.7 released roughly the energy of 5 kilotons of TNT. That is about 355 times the energy of a magnitude 4.0, a quake people nearby feel but that rarely causes damage. The strongest earthquake ever recorded, magnitude 9.5 in Chile in 1960, released about 500,000 times more than this one.

Aftershocks

In the first 3 days after it, USGS recorded 2 smaller earthquakes of magnitude 2.5 or more within 100 km (62 mi). The largest was a magnitude 5.2 on October 23 at 13:55 UTC.

Outside the United States, USGS mainly lists quakes of about magnitude 4 and up, so smaller aftershocks there are undercounted.

Earthquake history here

Before this earthquake, USGS had recorded 11 earthquakes of magnitude 6 or larger within 300 km (186 mi) since 1900. The strongest:

Official details, updates and the shaking map: USGS event page.

See every earthquake on October 23, 2026 or earthquakes by day.

More from around the world