Earthquakes in Aosta
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 = 0.093 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Aosta plus nearby towns.
The seismic history of Aosta
The earthquakes that were actually felt in Aosta over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2005IV8 September 2005
Moderate: felt by many indoors; glasses and dishes rattle.
Massif du Mont-Blanc earthquake (M4.4), epicentre 46 km away
- 1969F9 October 1969
Moderate: felt by many indoors; glasses and dishes rattle.
Val di Susa earthquake (M4.3), epicentre 74 km away
- 1968F18 June 1968
Moderate: felt by many indoors; glasses and dishes rattle.
Valle d'Aosta earthquake (M4.9), epicentre 37 km away
- 1938V23 September 1938
Rather strong: felt by almost everyone; hanging objects swing.
Valle d'Aosta earthquake (M4.0), epicentre 29 km away
- 1914V26 October 1914
Rather strong: felt by almost everyone; hanging objects swing.
Torinese earthquake (M5.2), epicentre 78 km away
- 1905VI29 April 1905
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Haute-Savoie, Vallorcine earthquake (M5.1), epicentre 37 km away
- 1887IV23 February 1887
Moderate: felt by many indoors; glasses and dishes rattle.
Liguria occidentale earthquake (M6.3), epicentre 214 km away
- 1886V5 September 1886
Rather strong: felt by almost everyone; hanging objects swing.
Torinese earthquake (M5.2), epicentre 80 km away
- 1884IV27 November 1884
Moderate: felt by many indoors; glasses and dishes rattle.
Alpi Cozie earthquake (M5.2), epicentre 105 km away
- 1881F22 July 1881
Moderate: felt by many indoors; glasses and dishes rattle.
Belledonne-Pelvoux earthquake (M5.4), epicentre 100 km away
- 1877F8 October 1877
Moderate: felt by many indoors; glasses and dishes rattle.
Faucigny earthquake (M5.0), epicentre 90 km away
- 1869IV-V29 November 1869
Rather strong: felt by almost everyone; hanging objects swing.
Aosta earthquake (M3.9), epicentre 2 km away
…and 12 more documented effects in this town's history.
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 32 km from Chamonix, 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?
Aosta 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 Aosta3 events · 30gAosta Valley region3 events · 30gFrequently asked questions
Were there earthquakes today in Aosta?
No, no quakes were recorded today in the Aosta area: the latest nearby dates back to 1 month ago.
Is Aosta a seismic area?
Aosta 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 Aosta?
In the last ~12 years of INGV data, the strongest within 30 km of Aosta was magnitude 3.9, in 2021.
When was the last quake near Aosta?
The last quake recorded within 30 km of Aosta 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)