Earthquakes in Gressoney-La-Trinité
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 = 0.075 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Gressoney-La-Trinité plus nearby towns.
The seismic history of Gressoney-La-Trinité
The earthquakes that were actually felt in Gressoney-La-Trinité over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2005NF8 September 2005
Imperceptible: only instruments record it.
Massif du Mont-Blanc earthquake (M4.4), epicentre 76 km away
- 1968VI18 June 1968
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Valle d'Aosta earthquake (M4.9), epicentre 22 km away
- 1951IV15 May 1951
Moderate: felt by many indoors; glasses and dishes rattle.
Lodigiano earthquake (M5.2), epicentre 157 km away
- 1935V5 April 1935
Rather strong: felt by almost everyone; hanging objects swing.
Valle d'Aosta earthquake (M3.7), epicentre 5 km away
- 1892F5 March 1892
Moderate: felt by many indoors; glasses and dishes rattle.
Valle d'Aosta earthquake (M5.0), epicentre 34 km away
- 1887NF23 February 1887
Imperceptible: only instruments record it.
Liguria occidentale earthquake (M6.3), epicentre 221 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 42 km from Western Valais, 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?
Gressoney-La-Trinité 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 Aosta3 events · 30gAosta Valley region3 events · 30gFrequently asked questions
Were there earthquakes today in Gressoney-La-Trinité?
No, no quakes were recorded today in the Gressoney-La-Trinité area: the latest nearby dates back to 3 months ago.
Is Gressoney-La-Trinité a seismic area?
Gressoney-La-Trinité 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 Gressoney-La-Trinité?
In the last ~12 years of INGV data, the strongest within 30 km of Gressoney-La-Trinité was magnitude 3.9, in 2021.
When was the last quake near Gressoney-La-Trinité?
The last quake recorded within 30 km of Gressoney-La-Trinité 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)