Earthquakes today in Sant'Alessio con Vialone
Today, within 30 km: no earthquakes recorded (updated at 11:43). Latest: M1.6 on 16 October 2025 at 00:06, 3 km North-West of San Giuliano Milanese, 40 km deep.
Latest earthquake within 30 km
3 km North-West of San Giuliano Milanese
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 Sant'Alessio con Vialone: zone 3
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).
“Within 30 km”: epicentres less than 30 km from the centre of Sant'Alessio con Vialone. “In the town”: quakes whose nearest town to the epicentre is Sant'Alessio con Vialone.
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).
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?
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 · last 30 daysLombardy region14 events · last 30 daysFrequently asked questions
Were there earthquakes near Sant'Alessio con Vialone today?
No, no quakes were recorded today within 30 km of Sant'Alessio con Vialone. The latest dates back to 16 October 2025.
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 INGV catalogue since 2015, the strongest earthquake within 30 km of Sant'Alessio con Vialone was magnitude 3.8, on 17 December 2020.
When was the last quake near Sant'Alessio con Vialone?
The last quake recorded within 30 km of Sant'Alessio con Vialone dates back to 16 October 2025, magnitude 1.6.
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)