Earthquakes today in Introbio
Today, within 30 km: no earthquakes recorded (updated at 12:24). Latest: M2.1 on 4 July 2025 at 10:28, 2 km South-West of Bedulita, 9 km deep.
Seismic activity within 30 km
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is Introbio: zone 3
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 = 0.048 g (10% probability of exceedance in 50 years, rigid soil).
Why the ground rarely shakes here
Introbio 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.
“Within 30 km”: epicentres less than 30 km from the centre of Introbio. “In the town”: quakes whose nearest town to the epicentre is Introbio.
The seismic history of Introbio
The earthquakes that were actually felt in Introbio over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1995NF29 October 1995
Imperceptible: only instruments record it.
Lago d'Iseo earthquake (M4.3), epicentre 42 km away
- 1991III20 November 1991
Light: felt by few people, like a passing truck.
Grigioni, Vaz earthquake (M4.7), epicentre 82 km away
- 1918NC24 April 1918
Very light: felt only by a few people at rest, on upper floors.
Lecchese earthquake (M5.0), epicentre 20 km away
- 1917IV-V9 December 1917
Rather strong: felt by almost everyone; hanging objects swing.
Alta Engadina earthquake (M4.6), epicentre 57 km away
- 1905NF29 April 1905
Imperceptible: only instruments record it.
Haute-Savoie, Vallorcine earthquake (M5.1), epicentre 190 km away
- 1898NF4 March 1898
Imperceptible: only instruments record it.
Parmense earthquake (M5.4), epicentre 161 km away
- 1887NF20 May 1887
Imperceptible: only instruments record it.
Lecchese earthquake (M4.0), epicentre 21 km away
- 1887III23 February 1887
Light: felt by few people, like a passing truck.
Liguria occidentale earthquake (M6.3), epicentre 262 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 26 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).
Over time within 30 km
Earthquake map within 30 km
21 eventsLatest earthquakes within 30 km
Nearby towns
How does it compare with the surroundings?
Introbio 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 Lecco0 events · last 30 daysLombardy region14 events · last 30 daysFrequently asked questions
Were there earthquakes near Introbio today?
No, no quakes were recorded today within 30 km of Introbio. The latest dates back to 4 July 2025.
Is Introbio a seismic area?
Introbio 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 Introbio?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Introbio was magnitude 2.5, on 21 June 2024.
When was the last quake near Introbio?
The last quake recorded within 30 km of Introbio dates back to 4 July 2025, magnitude 2.1.
Tip. Click a nearby town to explore its seismicity.
Sources:INGV earthquake catalogueDBMI15 macroseismic historyCivil Protection seismic classification
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)