Earthquakes in Sant'Alessio con Vialone
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 = 0.072 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Sant'Alessio con Vialone plus nearby towns.
The seismic history of Sant'Alessio con Vialone
The earthquakes that were actually felt in Sant'Alessio con Vialone over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1987NF2 May 1987
Imperceptible: only instruments record it.
Reggiano earthquake (M4.7), epicentre 124 km away · observed at Sant'Alessio
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 8 km from Portalbera-Cremona, 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
1 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Sant'Alessio con Vialone 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 Pavia0 events · 30gLombardy region11 events · 30gFrequently asked questions
Were there earthquakes today in Sant'Alessio con Vialone?
No, no quakes were recorded today in the Sant'Alessio con Vialone area: the latest nearby dates back to 30 months ago.
Is Sant'Alessio con Vialone a seismic area?
Sant'Alessio con Vialone 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 Sant'Alessio con Vialone?
In the last ~12 years of INGV data, the strongest within 30 km of Sant'Alessio con Vialone was magnitude 3.8, in 2020.
When was the last quake near Sant'Alessio con Vialone?
The last quake recorded within 30 km of Sant'Alessio con Vialone was 10 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)