Earthquakes in Oltressenda Alta
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 Oltressenda Alta plus nearby towns.
The seismic history of Oltressenda Alta
The earthquakes that were actually felt in Oltressenda Alta over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2001NF17 July 2001
Imperceptible: only instruments record it.
Val Venosta earthquake (M4.8), epicentre 118 km away · observed at Oltressenda Alta (Nasolino)
- 1991III20 November 1991
Light: felt by few people, like a passing truck.
Grigioni, Vaz earthquake (M4.7), epicentre 95 km away · observed at Oltressenda Alta (Nasolino)
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 33 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
24 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Oltressenda Alta 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 Bergamo1 events · 30gLombardy region11 events · 30gFrequently asked questions
Were there earthquakes today in Oltressenda Alta?
No, no quakes were recorded today in the Oltressenda Alta area: the latest nearby dates back to 7 months ago.
Is Oltressenda Alta a seismic area?
Oltressenda Alta 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 Oltressenda Alta?
In the last ~12 years of INGV data, the strongest within 30 km of Oltressenda Alta was magnitude 3.0, in 2015.
When was the last quake near Oltressenda Alta?
The last quake recorded within 30 km of Oltressenda Alta was 6 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)