Earthquakes in Spriana
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?
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 = 0.104 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Spriana plus nearby towns.
The seismic history of Spriana
The earthquakes that were actually felt in Spriana over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1991IV-V20 November 1991
Rather strong: felt by almost everyone; hanging objects swing.
Grigioni, Vaz earthquake (M4.7), epicentre 63 km away
- 1960IV23 March 1960
Moderate: felt by many indoors; glasses and dishes rattle.
Vallese earthquake (M5.0), epicentre 144 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 59 km from Western S-Alps internal thrust, 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
60 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Spriana 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 Sondrio5 events · 30gLombardy region11 events · 30gFrequently asked questions
Were there earthquakes today in Spriana?
No, no quakes were recorded today in the Spriana area: the latest nearby dates back to 1 month ago.
Is Spriana a seismic area?
Spriana 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 Spriana?
In the last ~12 years of INGV data, the strongest within 30 km of Spriana was magnitude 3.3, in 2017.
When was the last quake near Spriana?
The last quake recorded within 30 km of Spriana was 1 month ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)