Province of Alessandria

Earthquakes today in Casasco

Today, within 30 km: no earthquakes recorded (updated at 11:34). Latest: M2.0 on 21 June 2026 at 01:38, 3 km South-East of Borgo Priolo, 23 km deep.

2.0
light

Latest earthquake within 30 km

3 km South-East of Borgo Priolo

4 months ago · 21 Jun 2026, 01:38
Depth 23 km

Seismic activity within 30 km

30 km radius
114
days since the last quake within 30 km
111
quakes recorded since 2015
~39 days
on average, one quake every
3.7
The strongest within 30 km
2 km East of Santa Giuletta
6 years ago · 19 Apr 2020, 11:53

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

How seismic is Casasco: zone 3

Zone3
Seismic zone 3

Medium-low seismicity: strong quakes are rare, but not impossible.

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 = 0.093 g (10% probability of exceedance in 50 years, rigid soil).

Closest earthquake
Earthquake details
3
In the town
total on record
0
In the town
last 12 months
6
Within 30 km
last 12 months
M3.7
Strongest since 2015
Within 30 km

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

Latest earthquake attributed to Casasco: 19 September 2022 · 124 inhabitants

The seismic history of Casasco

The earthquakes that were actually felt in Casasco 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 30 km away

  2. 2005NF13 April 2005

    Imperceptible: only instruments record it.

    Valle del Trebbia earthquake (M3.7), epicentre 30 km away

  3. 2003V11 April 2003

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

    Valle Scrivia earthquake (M4.8), epicentre 13 km away

  4. 2002NF13 November 2002

    Imperceptible: only instruments record it.

    Franciacorta earthquake (M4.2), epicentre 128 km away

  5. 2000NF21 August 2000

    Imperceptible: only instruments record it.

    Monferrato earthquake (M4.9), epicentre 50 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 · 4 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
15415.3
Valle Scrivia earthquake
22 October 1541 · 11 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19455.1
Oltrepò Pavese earthquake
29 June 1945 · 10 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
16805.1
Valle Scrivia earthquake
30 April 1680 · 22 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

Rivanazzano-Stradella

The town lies about 6 km from Rivanazzano-Stradella, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 6.8between 2 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

June 20261eventmax 2.0
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul
Oct

Earthquake map within 30 km

60 events
Magnitude:lightweakmoderatestrong

Latest earthquakes within 30 km

2.0
3 km South-East of Borgo Priolo
16 km North-East · 23 km
4 months ago
21 Jun 2026, 01:38
1.4
3 km North-East of Zerba
26 km South-East · 9 km
8 months ago
1 Mar 2026, 03:16
1.5
1 km North-West of Zerba
25 km South-East · 10 km
8 months ago
1 Mar 2026, 00:28
1.7
1 km North-East of Zerba
26 km South-East · 10 km
8 months ago
5 Feb 2026, 08:36
2.1
0 km East of Zerba
26 km South-East · 9 km
8 months ago
5 Feb 2026, 03:03
2.6
1 km North-East of Zerba
26 km South-East · 10 km
8 months ago
4 Feb 2026, 13:09
3.3
2 km South-West of Montalto Pavese
22 km North-East · 33 km
1 year ago
3 Oct 2025, 20:57
2.4
1 km West of Garbagna
6 km South-West · 9 km
1 year ago
2 Jul 2025, 07:07
2.4
1 km East of Vignole Borbera
15 km South-West · 10 km
1 year ago
30 May 2025, 13:10
1.3
1 year ago
12 May 2025, 02:39

Nearby towns

How does it compare with the surroundings?

Casasco sits in one of the most seismically active areas of its province: quakes are a familiar presence here, almost always light.

quietermore active
More epicentres than 96% of the 187 towns in the province.
Casasco3
Nearby towns average1.7

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: 006041

Frequently asked questions

Were there earthquakes near Casasco today?

No, no quakes were recorded today within 30 km of Casasco. The latest dates back to 21 June 2026.

Is Casasco a seismic area?

Casasco 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 Casasco?

In the INGV catalogue since 2015, the strongest earthquake within 30 km of Casasco was magnitude 3.7, on 19 April 2020.

When was the last quake near Casasco?

The last quake recorded within 30 km of Casasco dates back to 21 June 2026, magnitude 2.0.

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)