Earthquakes today in Castellar Guidobono
Today, within 30 km: no earthquakes recorded (updated at 11:39). Latest: M2.0 on 21 June 2026 at 01:38, 3 km South-East of Borgo Priolo, 23 km deep.
Latest earthquake within 30 km
3 km South-East of Borgo Priolo
Seismic activity within 30 km
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is Castellar Guidobono: zone 3
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 = 0.090 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Castellar Guidobono. “In the town”: quakes whose nearest town to the epicentre is Castellar Guidobono.
The seismic history of Castellar Guidobono
The earthquakes that were actually felt in Castellar Guidobono over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000NF21 August 2000
Imperceptible: only instruments record it.
Monferrato earthquake (M4.9), epicentre 45 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 136 km away
- 1828VI-VII9 October 1828
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Oltrepò Pavese earthquake (M5.7), epicentre 12 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 sits above this source area: the deep structure where this area's earthquakes can originate.
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
Earthquake map within 30 km
60 eventsLatest earthquakes within 30 km
Nearby towns
How does it compare with the surroundings?
Castellar Guidobono 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 · last 30 daysPiedmont region58 events · last 30 daysFrequently asked questions
Were there earthquakes near Castellar Guidobono today?
No, no quakes were recorded today within 30 km of Castellar Guidobono. The latest dates back to 21 June 2026.
Is Castellar Guidobono a seismic area?
Castellar Guidobono 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 Castellar Guidobono?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Castellar Guidobono was magnitude 3.7, on 19 April 2020.
When was the last quake near Castellar Guidobono?
The last quake recorded within 30 km of Castellar Guidobono 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)