Earthquakes in Voltaggio
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 = 0.086 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Voltaggio plus nearby towns.
The seismic history of Voltaggio
The earthquakes that were actually felt in Voltaggio 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 41 km away
- 2005NF13 April 2005
Imperceptible: only instruments record it.
Valle del Trebbia earthquake (M3.7), epicentre 38 km away
- 1993NF17 July 1993
Imperceptible: only instruments record it.
Liguria occidentale earthquake (M4.3), epicentre 66 km away
- 1970III31 December 1970
Light: felt by few people, like a passing truck.
Liguria occidentale earthquake (M4.6), epicentre 77 km away
- 1913F7 December 1913
Moderate: felt by many indoors; glasses and dishes rattle.
Valle Scrivia earthquake (M4.6), epicentre 16 km away
- 1909NF13 January 1909
Imperceptible: only instruments record it.
Emilia Romagna orientale earthquake (M5.4), epicentre 224 km away
- 1901III-IV23 January 1901
Moderate: felt by many indoors; glasses and dishes rattle.
Oltrepò Pavese earthquake (M4.2), epicentre 50 km away
- 1898III4 March 1898
Light: felt by few people, like a passing truck.
Parmense earthquake (M5.4), epicentre 111 km away
- 1897IV-V6 July 1897
Rather strong: felt by almost everyone; hanging objects swing.
Mar Ligure earthquake (M4.2), epicentre 26 km away
- 1887V-VI23 February 1887
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Liguria occidentale earthquake (M6.3), epicentre 105 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 30 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
60 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Voltaggio 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 Voltaggio?
No, no quakes were recorded today in the Voltaggio area: the latest nearby dates back to 11 days ago.
Is Voltaggio a seismic area?
Voltaggio 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 Voltaggio?
In the last ~12 years of INGV data, the strongest within 30 km of Voltaggio was magnitude 4.0, in 2022.
When was the last quake near Voltaggio?
The last quake recorded within 30 km of Voltaggio was 11 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)