Earthquakes in Sant'Agata Fossili
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 = 0.093 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Sant'Agata Fossili plus nearby towns.
The seismic history of Sant'Agata Fossili
The earthquakes that were actually felt in Sant'Agata Fossili over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2003VII11 April 2003
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Valle Scrivia earthquake (M4.8), epicentre 4 km away
- 2003V-VI11 April 2003
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Valle Scrivia earthquake (M4.8), epicentre 4 km away · observed at Podigliano
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 10 km from Eastern Monferrato, 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
18 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Sant'Agata Fossili 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 Alessandria0 events · 30gPiedmont region34 events · 30gFrequently asked questions
Were there earthquakes today in Sant'Agata Fossili?
No, no quakes were recorded today in the Sant'Agata Fossili area: the latest nearby dates back to 14 months ago.
Is Sant'Agata Fossili a seismic area?
Sant'Agata Fossili 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'Agata Fossili?
In the last ~12 years of INGV data, the strongest within 30 km of Sant'Agata Fossili was magnitude 3.1, in 2020.
When was the last quake near Sant'Agata Fossili?
The last quake recorded within 30 km of Sant'Agata Fossili was 1 month ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)