Province of Alessandria

Earthquakes in Valenza

1.6
very light
LATEST QUAKE

2 km East of Bassignana

36 months ago · 12 Sept, 15:41
Depth 36 km

Seismic activity in the surroundings

30 km radius
695
days since the last quake nearby
19
quakes recorded since 2014
~7 months
on average, one quake every
2.4
The strongest within 30 km
1 km North-East of Sezzadio
101 months ago · 15 May, 20:05

INGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.

How seismic is this area?

Zone4
Seismic zone 4

The quietest class: the probability of strong earthquakes is very low.

Official Civil Protection classification (upd. 2025), used for building codes.

Very low
Expected shaking, compared with the other Italian municipalities (INGV MPS04 model)

Hazard describes the long-term expected shaking: it is not a forecast. Technical value: ag = 0.049 g (10% probability of exceedance in 50 years, rigid soil).

Why the ground rarely shakes here

Valenza sits in one of the most stable areas of Italy: far from the boundary between the Eurasian and African plates, on ancient, rigid crust that hardly accumulates tectonic stress any more.

That is why earthquakes here are rare and almost always weak: a small geological privilege.

Closest earthquake
Go to Pietra Marazzi Earthquake details
0
In the town
total on record
0
In the town
last 12 months
0
In the area
last 12 months
M2.2
Strongest ever
In the area

The “area” is Valenza plus nearby towns.

No earthquakes recorded in Valenza · 19,671 inhabitants

The seismic history of Valenza

The earthquakes that were actually felt in Valenza over the centuries, with the intensity observed on site (Mercalli MCS scale).

  1. 2001III-IV18 July 2001

    Moderate: felt by many indoors; glasses and dishes rattle.

    Monferrato earthquake (M4.2), epicentre 30 km away

  2. 2000V21 August 2000

    Rather strong: felt by almost everyone; hanging objects swing.

    Monferrato earthquake (M4.9), epicentre 24 km away

  3. 1993NF17 July 1993

    Imperceptible: only instruments record it.

    Liguria occidentale earthquake (M4.3), epicentre 97 km away

  4. 1983III9 November 1983

    Light: felt by few people, like a passing truck.

    Parmense earthquake (M5.0), epicentre 132 km away

  5. 1960II23 March 1960

    Very light: felt only by a few people at rest, on upper floors.

    Vallese earthquake (M5.0), epicentre 157 km away

  6. 1887VI23 February 1887

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Liguria occidentale earthquake (M6.3), epicentre 136 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.

18285.7
Oltrepò Pavese earthquake
9 October 1828 · 39 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
15415.3
Valle Scrivia earthquake
22 October 1541 · 36 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19455.1
Oltrepò Pavese earthquake
29 June 1945 · 45 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
16805.1
Valle Scrivia earthquake
30 April 1680 · 40 km from here
VIIVery strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Eastern Monferrato

The town lies about 1 km from Eastern Monferrato, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 6.4between 1 and 8 km deep

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

August 2026no events
Oct
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul

Earthquake map

7 events
Magnitude:lightweakmoderatestrong

Earthquakes in the area

1.6
2 km East of Bassignana
11 km East · 36 km
36 months ago
12 Sept, 15:41
1.7
4 km West of Pietra Marazzi
7 km South · 35 km
45 months ago
5 Dec, 17:47
1.6
50 months ago
6 Jul, 18:45
1.4
3 km North of Alessandria
10 km South · 52 km
52 months ago
21 May, 02:36
2.2
3 km East of Montecastello
11 km South-East · 37 km
69 months ago
7 Jan, 21:45
2.1
81 months ago
6 Jan, 09:28
2.0
3 km South-East of Montecastello
12 km South-East · 44 km
128 months ago
29 Feb, 16:03

Nearby towns

How does it compare with the surroundings?

Valenza is among the quietest towns of its province: very few epicentres are recorded here.

quietermore active
More epicentres than 0% of the 187 towns in the province.
Valenza0
Nearby towns average0.6

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 · 30g
ISTAT code: 006177

Frequently asked questions

Were there earthquakes today in Valenza?

No, no quakes were recorded today in the Valenza area: the latest nearby dates back to 36 months ago.

Is Valenza a seismic area?

Valenza is classified in seismic zone 4 by the Civil Protection. The quietest class: the probability of strong earthquakes is very low.

What was the strongest earthquake near Valenza?

In the last ~12 years of INGV data, the strongest within 30 km of Valenza was magnitude 2.4, in 2018.

When was the last quake near Valenza?

The last quake recorded within 30 km of Valenza 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)

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