Earthquakes in Bassignana
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?
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 = 0.061 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Bassignana plus nearby towns.
The seismic history of Bassignana
The earthquakes that were actually felt in Bassignana over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2005NF18 April 2005
Imperceptible: only instruments record it.
Valle del Trebbia earthquake (M4.0), epicentre 57 km away
- 2001II18 July 2001
Very light: felt only by a few people at rest, on upper floors.
Monferrato earthquake (M4.2), epicentre 34 km away
- 2000IV21 August 2000
Moderate: felt by many indoors; glasses and dishes rattle.
Monferrato earthquake (M4.9), epicentre 31 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 sits above this source area: the deep structure where this area's earthquakes can originate.
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
7 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Bassignana records more quakes than the average of its province.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Alessandria0 events · 30gPiedmont region36 events · 30gFrequently asked questions
Were there earthquakes today in Bassignana?
No, no quakes were recorded today in the Bassignana area: the latest nearby dates back to 36 months ago.
Is Bassignana a seismic area?
Bassignana 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 Bassignana?
In the last ~12 years of INGV data, the strongest within 30 km of Bassignana was magnitude 2.9, in 2020.
When was the last quake near Bassignana?
The last quake recorded within 30 km of Bassignana was 16 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)