Earthquakes in Pietra Marazzi
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 = 0.061 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Pietra Marazzi plus nearby towns.
The seismic history of Pietra Marazzi
The earthquakes that were actually felt in Pietra Marazzi over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2002NF13 November 2002
Imperceptible: only instruments record it.
Franciacorta earthquake (M4.2), epicentre 139 km away
- 2000VI21 August 2000
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monferrato earthquake (M4.9), epicentre 23 km away
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 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
9 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Pietra Marazzi records more quakes than the average of its province.
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 Pietra Marazzi?
No, no quakes were recorded today in the Pietra Marazzi area: the latest nearby dates back to 36 months ago.
Is Pietra Marazzi a seismic area?
Pietra Marazzi 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 Pietra Marazzi?
In the last ~12 years of INGV data, the strongest within 30 km of Pietra Marazzi was magnitude 3.1, in 2020.
When was the last quake near Pietra Marazzi?
The last quake recorded within 30 km of Pietra Marazzi was 23 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)