Earthquakes today in Valbrona
Today, within 30 km: no earthquakes recorded (updated at 10:42). Latest: M2.1 on 4 July 2025 at 10:28, 2 km South-West of Bedulita, 9 km deep.
Seismic activity within 30 km
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is Valbrona: zone 4
The quietest class: the probability of strong earthquakes is very low.
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 = 0.049 g (10% probability of exceedance in 50 years, rigid soil).
Why the ground rarely shakes here
Valbrona 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.
“Within 30 km”: epicentres less than 30 km from the centre of Valbrona. “In the town”: quakes whose nearest town to the epicentre is Valbrona.
The seismic history of Valbrona
The earthquakes that were actually felt in Valbrona over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1991NF20 November 1991
Imperceptible: only instruments record it.
Grigioni, Vaz earthquake (M4.7), epicentre 96 km away · observed at Valbrona (Osigo)
- 1887V20 May 1887
Rather strong: felt by almost everyone; hanging objects swing.
Lecchese earthquake (M4.0), epicentre 7 km away · observed at Valbrona (Osigo)
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 14 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).
Over time within 30 km
Earthquake map within 30 km
20 eventsLatest earthquakes within 30 km
Nearby towns
How does it compare with the surroundings?
Valbrona 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 Como0 events · last 30 daysLombardy region14 events · last 30 daysFrequently asked questions
Were there earthquakes near Valbrona today?
No, no quakes were recorded today within 30 km of Valbrona. The latest dates back to 4 July 2025.
Is Valbrona a seismic area?
Valbrona is classified in seismic zone 4 by the Civil Protection. The quietest class: the probability of strong earthquakes is very low.
What was the strongest earthquake near Valbrona?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Valbrona was magnitude 2.5, on 21 June 2024.
When was the last quake near Valbrona?
The last quake recorded within 30 km of Valbrona dates back to 4 July 2025, magnitude 2.1.
Tip. Click a nearby town to explore its seismicity.
Sources:INGV earthquake catalogueDBMI15 macroseismic historyCivil Protection seismic classification
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)