Earthquakes in Briosco
No epicentres recorded in Briosco in our archive. Here is the seismicity of the area and its surroundings.
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~11 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 = 0.052 g (10% probability of exceedance in 50 years, rigid soil).
Why the ground rarely shakes here
Briosco sits in one of the most stable areas of Italy: far from the boundary between the Eurasian and African plates, on ancient, rigid crust that hardly accumulates tectonic stress any more.
That is why earthquakes here are rare and almost always weak: a small geological privilege.
The “area” is Briosco plus nearby towns.
The seismic history of Briosco
The earthquakes that were actually felt in Briosco over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1991IV20 November 1991
Moderate: felt by many indoors; glasses and dishes rattle.
Grigioni, Vaz earthquake (M4.7), epicentre 115 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 10 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
0 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Briosco 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 region2 events · 30gFrequently asked questions
Were there earthquakes today in Briosco?
No, no quakes were recorded today in the Briosco area.
Is Briosco a seismic area?
Briosco 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 Briosco?
In the last ~11 years of INGV data, the strongest within 30 km of Briosco was magnitude 3.9, in 2021.
When was the last quake near Briosco?
The last quake recorded within 30 km of Briosco was 11 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)