Earthquakes in Lesmo
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is this area?
Medium-low seismicity: strong quakes are rare, but not impossible.
Official Civil Protection classification (upd. 2025), used for building codes.
Hazard describes the long-term expected shaking: it is not a forecast. Technical value: ag = 0.053 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Lesmo plus nearby towns.
The seismic history of Lesmo
The earthquakes that were actually felt in Lesmo over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000NF21 August 2000
Imperceptible: only instruments record it.
Monferrato earthquake (M4.9), epicentre 109 km away
- 1991III20 November 1991
Light: felt by few people, like a passing truck.
Grigioni, Vaz earthquake (M4.7), epicentre 122 km away
Source: Italian Macroseismic Database DBMI15 (INGV, CC BY 4.0).
The great earthquakes in this area's history
Almost a thousand years of catalogues: the strongest documented events within ~50 km.
Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).
The closest seismic structure
The town lies about 4 km from Western S-Alps internal thrust, one of the seismic structures mapped by INGV geologists.
Faults are mapped to build better and understand the territory: knowing them says nothing about when an earthquake will occur, which remains unpredictable. Source: DISS 3.3 (INGV, CC BY 4.0).
Area over time
Earthquake map
1 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Lesmo is among the quietest towns of its province: very few epicentres are recorded here.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Monza e Brianza0 events · 30gLombardy region11 events · 30gFrequently asked questions
Were there earthquakes today in Lesmo?
No, no quakes were recorded today in the Lesmo area: the latest nearby dates back to 137 months ago.
Is Lesmo a seismic area?
Lesmo is classified in seismic zone 3 by the Civil Protection. Medium-low seismicity: strong quakes are rare, but not impossible.
What was the strongest earthquake near Lesmo?
In the last ~12 years of INGV data, the strongest within 30 km of Lesmo was magnitude 3.9, in 2021.
When was the last quake near Lesmo?
The last quake recorded within 30 km of Lesmo was 10 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)