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Italy · Tuscany

M1.1 Earthquake near Monteroni d'Arbia, Tuscany (Italy)

UTC time: 2026-09-11 13:39:30 UTC Local time: —

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About this earthquake

A magnitude M1.1 earthquake was recorded near Monteroni d'Arbia, Tuscany (Italy) on September 11, 2026 at 13:39 UTC. With a focal depth of about 6 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by INGV. Italy: 36 earthquakes were recorded in the past 24 hours, the strongest reaching M2.6.

Details

ID
3a2f5b4317f2edd3060f835e98a5aa35bf5b4c4f
Magnitude
M1.1
Depth
6.4 km
UTC time
2026-09-11 13:39:30 UTC
Local time
—
Country
Italy
State
Tuscany
City
Monteroni d'Arbia
County
Siena
Village
Ponte a Tressa
Source
ingv
Coordinates
43.24520, 11.41870
Temperature
24.2°C

Depth profile

Depth profile Depth: 6.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 6.4 km
Shallow
6.4 km
6.4 km — shallower than the regional average (12.6 km)
Regional average: 12.6 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Colli Albani
    Distance: 197 km ·Caldera ·Elevation: 949 m ·Italy
  • Ischia
    Distance: 347 km ·Complex ·Elevation: 789 m ·Last eruption: 1302 ·Italy
  • Campi Flegrei
    Distance: 350 km ·Caldera ·Elevation: 458 m ·Last eruption: 1538 ·Italy
  • Vesuvius
    Distance: 366 km ·Stratovolcano ·Elevation: 1'281 m ·Last eruption: 1944 ·Italy

Italy

Context for this earthquake

11 Sep 2025 – 11 Sep 2026 · M ≥ 2.0 · 1,249 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · Italy

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Italy

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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