Earthquakes in Bognanco
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 = 0.097 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Bognanco plus nearby towns.
The seismic history of Bognanco
The earthquakes that were actually felt in Bognanco over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1887III-IV23 February 1887
Moderate: felt by many indoors; glasses and dishes rattle.
Liguria occidentale earthquake (M6.3), epicentre 249 km away · observed at Bognanco (San Lorenzo)
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 Valais, 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
60 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Bognanco 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 Verbano-Cusio-Ossola1 events · 30gPiedmont region34 events · 30gFrequently asked questions
Were there earthquakes today in Bognanco?
No, no quakes were recorded today in the Bognanco area: the latest nearby dates back to 8 months ago.
Is Bognanco a seismic area?
Bognanco 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 Bognanco?
In the last ~11 years of INGV data, the strongest within 30 km of Bognanco was magnitude 2.4, in 2024.
When was the last quake near Bognanco?
The last quake recorded within 30 km of Bognanco was 2 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)