Earthquakes in Grosso
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 = 0.056 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Grosso plus nearby towns.
The seismic history of Grosso
The earthquakes that were actually felt in Grosso over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1995IV-V21 November 1995
Rather strong: felt by almost everyone; hanging objects swing.
Torinese earthquake (M4.1), epicentre 25 km away
- 1992IV-V17 June 1992
Rather strong: felt by almost everyone; hanging objects swing.
Valli di Lanzo earthquake (M3.4), epicentre 10 km away
- 1887IV23 February 1887
Moderate: felt by many indoors; glasses and dishes rattle.
Liguria occidentale earthquake (M6.3), epicentre 157 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 23 km from Western Piemonte, 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
27 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Grosso 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 Torino12 events · 30gPiedmont region34 events · 30gFrequently asked questions
Were there earthquakes today in Grosso?
No, no quakes were recorded today in the Grosso area: the latest nearby dates back to 4 months ago.
Is Grosso a seismic area?
Grosso 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 Grosso?
In the last ~12 years of INGV data, the strongest within 30 km of Grosso was magnitude 2.7, in 2022.
When was the last quake near Grosso?
The last quake recorded within 30 km of Grosso was 4 hours ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)