Province of Sondrio

Earthquakes in Castello dell'Acqua

0.9
very light
LATEST QUAKE

6 km North-West of Bianzone

18 months ago · 29 Dec, 09:32
Depth 7 km

Seismic activity in the surroundings

30 km radius
131
days since the last quake nearby
98
quakes recorded since 2015
~43 days
on average, one quake every
2.8
The strongest within 30 km
6 km North of Chiuro
80 months ago · 20 Nov, 21:22

INGV catalogue epicentres of the last ~11 years, within the given radius from the town centre.

How seismic is this area?

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 = 0.078 g (10% probability of exceedance in 50 years, rigid soil).

Closest earthquake
Go to Tresivio Earthquake details
0
In the town
total on record
0
In the town
last 12 months
0
In the area
last 12 months
M2.8
Strongest ever
In the area

The “area” is Castello dell'Acqua plus nearby towns.

No earthquakes recorded in Castello dell'Acqua · 643 inhabitants

The seismic history of Castello dell'Acqua

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

  1. 2001III17 July 2001

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

    Val Venosta earthquake (M4.8), epicentre 102 km away

  2. 1999NF31 December 1999

    Imperceptible: only instruments record it.

    Alpi Retiche earthquake (M4.1), epicentre 52 km away

  3. 1999NF29 December 1999

    Imperceptible: only instruments record it.

    Alpi Retiche earthquake (M4.8), epicentre 51 km away

  4. 1991IV-V20 November 1991

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

    Grigioni, Vaz earthquake (M4.7), epicentre 75 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.

18514.9
Valli Giudicarie earthquake
3 August 1851 · 48 km from here
18824.8
Valle Seriana earthquake
27 February 1882 · 30 km from here
VI-VIIVery strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
18514.7
Valtellina earthquake
5 February 1851 · 19 km from here
V-VIStrong: felt by everyone, many get scared; objects fall, first light damage to buildings.
18794.6
Garda occidentale earthquake
14 February 1879 · 48 km from here
VRather strong: felt by almost everyone; hanging objects swing.

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

The closest seismic structure

Western S-Alps internal thrust

The town lies about 55 km from Western S-Alps internal thrust, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 6.9between 5 and 12 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

December 20241eventmax 0.9
Jul
Oct
Jan '25
Apr
Jul
Oct
Jan '26
Apr

Earthquake map

15 events
Magnitude:lightweakmoderatestrong

Earthquakes in the area

0.9
6 km North-West of Bianzone
13 km North-East · 7 km
18 months ago
29 Dec, 09:32
1.7
0 km North-East of Tresivio
8 km North-West · 11 km
33 months ago
30 Sept, 18:09
0.5
5 km North-East of Caspoggio
17 km North-West · 7 km
38 months ago
28 Apr, 19:10
0.6
4 km East of Caspoggio
15 km North-West · 11 km
39 months ago
11 Apr, 20:01
1.3
2 km East of Tresivio
6 km North-West · 12 km
44 months ago
13 Nov, 10:33
0.9
10 km North of Chiuro
17 km North · 10 km
45 months ago
13 Oct, 09:37
0.9
9 km North of Chiuro
16 km North · 9 km
49 months ago
8 Jun, 15:28
1.3
7 km North of Bianzone
15 km North-East · 11 km
54 months ago
2 Jan, 15:15
1.8
7 km North of Chiuro
14 km North · 13 km
71 months ago
16 Aug, 13:56
2.8
6 km North of Chiuro
13 km North · 13 km
80 months ago
20 Nov, 21:22

Nearby towns

How does it compare with the surroundings?

Castello dell'Acqua is among the quietest towns of its province: very few epicentres are recorded here.

quietermore active
More epicentres than 0% of the 77 towns in the province.
Castello dell'Acqua0
Nearby towns average1.2

Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.

Context

Province of Sondrio2 events · 30gLombardy region2 events · 30g
ISTAT code: 014014

Frequently asked questions

Were there earthquakes today in Castello dell'Acqua?

No, no quakes were recorded today in the Castello dell'Acqua area: the latest nearby dates back to 18 months ago.

Is Castello dell'Acqua a seismic area?

Castello dell'Acqua 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 Castello dell'Acqua?

In the last ~11 years of INGV data, the strongest within 30 km of Castello dell'Acqua was magnitude 2.8, in 2019.

When was the last quake near Castello dell'Acqua?

The last quake recorded within 30 km of Castello dell'Acqua 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)

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