Earthquakes in Pozzol Groppo
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 = 0.095 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Pozzol Groppo plus nearby towns.
The seismic history of Pozzol Groppo
The earthquakes that were actually felt in Pozzol Groppo 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 30 km away · observed at Pozzol Groppo (San Lorenzo)
- 2005NF13 April 2005
Imperceptible: only instruments record it.
Valle del Trebbia earthquake (M3.7), epicentre 30 km away · observed at Pozzol Groppo (San Lorenzo)
- 1887IV23 February 1887
Moderate: felt by many indoors; glasses and dishes rattle.
Liguria occidentale earthquake (M6.3), epicentre 136 km away · observed at Pozzol Groppo (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 2 km from Rivanazzano-Stradella, 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
22 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Pozzol Groppo sits in one of the most seismically active areas of its province: quakes are a familiar presence here, almost always light.
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 region34 events · 30gFrequently asked questions
Were there earthquakes today in Pozzol Groppo?
No, no quakes were recorded today in the Pozzol Groppo area: the latest nearby dates back to 16 months ago.
Is Pozzol Groppo a seismic area?
Pozzol Groppo 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 Pozzol Groppo?
In the last ~12 years of INGV data, the strongest within 30 km of Pozzol Groppo was magnitude 3.7, in 2020.
When was the last quake near Pozzol Groppo?
The last quake recorded within 30 km of Pozzol Groppo 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)