Earthquakes in Gravedona ed Uniti
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?
The quietest class: the probability of strong earthquakes is very low.
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 = 0.040 g (10% probability of exceedance in 50 years, rigid soil).
Why the ground rarely shakes here
Gravedona ed Uniti sits in one of the most stable areas of Italy: far from the boundary between the Eurasian and African plates, on ancient, rigid crust that hardly accumulates tectonic stress any more.
That is why earthquakes here are rare and almost always weak: a small geological privilege.
The “area” is Gravedona ed Uniti plus nearby towns.
The seismic history of Gravedona ed Uniti
The earthquakes that were actually felt in Gravedona ed Uniti over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1991IV20 November 1991
Moderate: felt by many indoors; glasses and dishes rattle.
Grigioni, Vaz earthquake (M4.7), epicentre 68 km away · observed at San Gregorio
- 1991III-IV20 November 1991
Moderate: felt by many indoors; glasses and dishes rattle.
Grigioni, Vaz earthquake (M4.7), epicentre 68 km away · observed at Gravedona
- 1983III9 November 1983
Light: felt by few people, like a passing truck.
Parmense earthquake (M5.0), epicentre 175 km away · observed at San Gregorio
- 1936II18 October 1936
Very light: felt only by a few people at rest, on upper floors.
Alpago Cansiglio earthquake (M6.1), epicentre 243 km away · observed at Gravedona
- 1927V13 August 1927
Rather strong: felt by almost everyone; hanging objects swing.
Alta Engadina earthquake (M4.4), epicentre 64 km away · observed at Gravedona
- 1918IV24 April 1918
Moderate: felt by many indoors; glasses and dishes rattle.
Lecchese earthquake (M5.0), epicentre 42 km away · observed at Gravedona
- 1917IV-V9 December 1917
Rather strong: felt by almost everyone; hanging objects swing.
Alta Engadina earthquake (M4.6), epicentre 54 km away · observed at Gravedona
- 1905NF29 April 1905
Imperceptible: only instruments record it.
Haute-Savoie, Vallorcine earthquake (M5.1), epicentre 172 km away · observed at Gravedona
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 45 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
14 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Gravedona ed Uniti 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 Como0 events · 30gLombardy region11 events · 30gFrequently asked questions
Were there earthquakes today in Gravedona ed Uniti?
No, no quakes were recorded today in the Gravedona ed Uniti area: the latest nearby dates back to 16 months ago.
Is Gravedona ed Uniti a seismic area?
Gravedona ed Uniti is classified in seismic zone 4 by the Civil Protection. The quietest class: the probability of strong earthquakes is very low.
What was the strongest earthquake near Gravedona ed Uniti?
In the last ~12 years of INGV data, the strongest within 30 km of Gravedona ed Uniti was magnitude 2.7, in 2020.
When was the last quake near Gravedona ed Uniti?
The last quake recorded within 30 km of Gravedona ed Uniti was 16 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)