Earthquakes in Brignano-Frascata
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 = 0.096 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Brignano-Frascata plus nearby towns.
The seismic history of Brignano-Frascata
The earthquakes that were actually felt in Brignano-Frascata 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 26 km away · observed at Brignano-Frascata (Brignano)
- 2005NF13 April 2005
Imperceptible: only instruments record it.
Valle del Trebbia earthquake (M3.7), epicentre 26 km away · observed at Brignano-Frascata (Brignano)
- 2000NF21 August 2000
Imperceptible: only instruments record it.
Monferrato earthquake (M4.9), epicentre 54 km away · observed at Brignano-Frascata (Brignano)
- 1887V23 February 1887
Rather strong: felt by almost everyone; hanging objects swing.
Liguria occidentale earthquake (M6.3), epicentre 133 km away · observed at Brignano-Frascata (Brignano)
- 1887IV-V23 February 1887
Rather strong: felt by almost everyone; hanging objects swing.
Liguria occidentale earthquake (M6.3), epicentre 133 km away · observed at Frascata
- 1882VI15 February 1882
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Val Borbera earthquake (M4.8), epicentre 17 km away · observed at Cosola
- 1828VI-VII9 October 1828
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Oltrepò Pavese earthquake (M5.7), epicentre 1 km away · observed at Cosola
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 6 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
26 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Brignano-Frascata 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 Brignano-Frascata?
No, no quakes were recorded today in the Brignano-Frascata area: the latest nearby dates back to 12 months ago.
Is Brignano-Frascata a seismic area?
Brignano-Frascata 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 Brignano-Frascata?
In the last ~11 years of INGV data, the strongest within 30 km of Brignano-Frascata was magnitude 3.7, in 2020.
When was the last quake near Brignano-Frascata?
The last quake recorded within 30 km of Brignano-Frascata was 4 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)