Province of Alessandria

Earthquakes today in Bassignana

Today, within 30 km: no earthquakes recorded (updated at 11:39). Latest: M1.3 on 12 May 2025 at 02:39, 1 km North-East of Momperone, 7 km deep.

1.3
very light

Latest earthquake within 30 km

1 km North-East of Momperone

1 year ago · 12 May 2025, 02:39
Depth 7 km

Seismic activity within 30 km

30 km radius
519
days since the last quake within 30 km
33
quakes recorded since 2015
~4 months
on average, one quake every
2.9
The strongest within 30 km
0 km North-East of Monleale
5 years ago · 28 Oct 2020, 05:15

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

How seismic is Bassignana: zone 4

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.

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 = 0.061 g (10% probability of exceedance in 50 years, rigid soil).

Closest earthquake
Earthquake details
1
In the town
total on record
0
In the town
last 12 months
0
Within 30 km
last 12 months
M2.9
Strongest since 2015
Within 30 km

“Within 30 km”: epicentres less than 30 km from the centre of Bassignana. “In the town”: quakes whose nearest town to the epicentre is Bassignana.

Latest earthquake attributed to Bassignana: 12 September 2023 · 1,742 inhabitants

The seismic history of Bassignana

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

  1. 2005NF18 April 2005

    Imperceptible: only instruments record it.

    Valle del Trebbia earthquake (M4.0), epicentre 57 km away

  2. 2001II18 July 2001

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

    Monferrato earthquake (M4.2), epicentre 34 km away

  3. 2000IV21 August 2000

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

    Monferrato earthquake (M4.9), epicentre 31 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 · 31 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
15415.3
Valle Scrivia earthquake
22 October 1541 · 30 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19455.1
Oltrepò Pavese earthquake
29 June 1945 · 36 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
16805.1
Valle Scrivia earthquake
30 April 1680 · 36 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 sits above this source area: the deep structure where this area's earthquakes can originate.

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).

Over time within 30 km

May 20251eventmax 1.3
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul
Oct

Earthquake map within 30 km

33 events
Magnitude:lightweakmoderatestrong

Latest earthquakes within 30 km

1.3
1 km North-East of Momperone
29 km South-East · 7 km
1 year ago
12 May 2025, 02:39
1.9
0 km North of Codevilla
25 km East · 14 km
2 years ago
18 May 2024, 20:45
1.6
2 km East of Bassignana
2 km East · 36 km
3 years ago
12 Sept 2023, 15:41
2.2
2 km North of Tortona
13 km South-East · 43 km
3 years ago
2 Sept 2023, 06:33
1.7
4 km West of Pietra Marazzi
12 km West · 35 km
3 years ago
5 Dec 2022, 17:47
2.7
1 km East of Casasco
29 km South-East · 19 km
4 years ago
19 Sept 2022, 10:15
1.6
2 km South-East of Alluvioni Piovera
5 km South-East · 47 km
4 years ago
6 Jul 2022, 18:45
1.4
3 km North of Alessandria
13 km South-West · 52 km
4 years ago
21 May 2022, 02:36
1.5
2 km East of Pozzol Groppo
29 km South-East · 17 km
4 years ago
16 May 2022, 00:37
1.5
4 km East of Oviglio
23 km South-West · 38 km
4 years ago
13 Nov 2021, 03:13

Nearby towns

How does it compare with the surroundings?

Bassignana records more quakes than the average of its province.

quietermore active
More epicentres than 66% of the 187 towns in the province.
Bassignana1
Nearby towns average0.5

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 · last 30 daysPiedmont region58 events · last 30 days
ISTAT code: 006013

Frequently asked questions

Were there earthquakes near Bassignana today?

No, no quakes were recorded today within 30 km of Bassignana. The latest dates back to 12 May 2025.

Is Bassignana a seismic area?

Bassignana 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 Bassignana?

In the INGV catalogue since 2015, the strongest earthquake within 30 km of Bassignana was magnitude 2.9, on 28 October 2020.

When was the last quake near Bassignana?

The last quake recorded within 30 km of Bassignana dates back to 12 May 2025, magnitude 1.3.

Tip. Click a nearby town to explore its seismicity.

Sources:INGV earthquake catalogueDBMI15 macroseismic historyCivil Protection seismic classification

Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)