Earthquakes in Castello di Annone
No epicentres recorded in Castello di Annone in our archive. Here is the seismicity of the area and its surroundings.
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?
The quietest class: the probability of strong earthquakes is very low.
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 = 0.043 g (10% probability of exceedance in 50 years, rigid soil).
Why the ground rarely shakes here
Castello di Annone 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.
The “area” is Castello di Annone plus nearby towns.
The seismic history of Castello di Annone
The earthquakes that were actually felt in Castello di Annone over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2001IV-V18 July 2001
Rather strong: felt by almost everyone; hanging objects swing.
Monferrato earthquake (M4.2), epicentre 14 km away
- 2000VI21 August 2000
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monferrato earthquake (M4.9), epicentre 5 km away
- 1887VI23 February 1887
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Liguria occidentale earthquake (M6.3), epicentre 115 km away
- 1818III23 February 1818
Light: felt by few people, like a passing truck.
Liguria occidentale earthquake (M5.3), epicentre 112 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 23 km from Western 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
0 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Castello di Annone 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 Asti0 events · 30gPiedmont region36 events · 30gFrequently asked questions
Were there earthquakes today in Castello di Annone?
No, no quakes were recorded today in the Castello di Annone area.
Is Castello di Annone a seismic area?
Castello di Annone 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 Castello di Annone?
In the last ~12 years of INGV data, the strongest within 30 km of Castello di Annone was magnitude 3.0, in 2020.
When was the last quake near Castello di Annone?
The last quake recorded within 30 km of Castello di Annone was 4 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)