Province of Lecco

Earthquakes in Calco

1.3
very light
LATEST QUAKE

1 km North of Colle Brianza

116 months ago · 21 Feb, 19:38
Depth 29 km

Seismic activity in the surroundings

30 km radius
232
days since the last quake nearby
47
quakes recorded since 2014
~3 months
on average, one quake every
3.9
The strongest within 30 km
1 km West of Dalmine
57 months ago · 18 Dec, 11:34

INGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.

How seismic is this area?

Zone3
Seismic zone 3

Medium-low seismicity: strong quakes are rare, but not impossible.

Official Civil Protection classification (upd. 2025), used for building codes.

Low
Expected shaking, compared with the other Italian municipalities (INGV MPS04 model)

Hazard describes the long-term expected shaking: it is not a forecast. Technical value: ag = 0.065 g (10% probability of exceedance in 50 years, rigid soil).

Closest earthquake
Go to Colle Brianza Earthquake details
0
In the town
total on record
0
In the town
last 12 months
0
In the area
last 12 months
M1.3
Strongest ever
In the area

The “area” is Calco plus nearby towns.

No earthquakes recorded in Calco · 5,113 inhabitants

The seismic history of Calco

The earthquakes that were actually felt in Calco over the centuries, with the intensity observed on site (Mercalli MCS scale).

  1. 2003IV-V11 April 2003

    Rather strong: felt by almost everyone; hanging objects swing.

    Valle Scrivia earthquake (M4.8), epicentre 116 km away

  2. 2002III-IV13 November 2002

    Moderate: felt by many indoors; glasses and dishes rattle.

    Franciacorta earthquake (M4.2), epicentre 57 km away

  3. 1995NF29 October 1995

    Imperceptible: only instruments record it.

    Lago d'Iseo earthquake (M4.3), epicentre 33 km away

  4. 1991NF20 November 1991

    Imperceptible: only instruments record it.

    Grigioni, Vaz earthquake (M4.7), epicentre 112 km away

  5. 1887III20 May 1887

    Light: felt by few people, like a passing truck.

    Lecchese earthquake (M4.0), epicentre 13 km away

  6. 1885IV-V26 February 1885

    Rather strong: felt by almost everyone; hanging objects swing.

    Pianura Padana earthquake (M5.0), epicentre 82 km away

  7. 1884IV-V12 September 1884

    Rather strong: felt by almost everyone; hanging objects swing.

    Pianura lombarda earthquake (M4.7), epicentre 33 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.

18025.6
Valle dell'Oglio earthquake
12 May 1802 · 47 km from here
VIII-IXDestructive: many buildings partly or fully collapse.
13965.3
Monza earthquake
26 November 1396 · 19 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19185.0
Lecchese earthquake
24 April 1918 · 10 km from here
VIStrong: felt by everyone, many get scared; objects fall, first light damage to buildings.
17814.9
Pianura lombarda earthquake
10 September 1781 · 28 km from here
VI-VIIVery strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Western S-Alps internal thrust

The town sits above this source area: the deep structure where this area's earthquakes can originate.

estimated maximum magnitude 6.9between 5 and 12 km deep

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

August 2026no events
Oct
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul

Earthquake map

1 events
Magnitude:lightweakmoderatestrong

Earthquakes in the area

1.3
1 km North of Colle Brianza
5 km North-West · 29 km
116 months ago
21 Feb, 19:38

Nearby towns

How does it compare with the surroundings?

Calco is among the quietest towns of its province: very few epicentres are recorded here.

quietermore active
More epicentres than 0% of the 84 towns in the province.
Calco0
Nearby towns average0.1

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 · 30gLombardy region11 events · 30g
ISTAT code: 097012

Frequently asked questions

Were there earthquakes today in Calco?

No, no quakes were recorded today in the Calco area: the latest nearby dates back to 116 months ago.

Is Calco a seismic area?

Calco 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 Calco?

In the last ~12 years of INGV data, the strongest within 30 km of Calco was magnitude 3.9, in 2021.

When was the last quake near Calco?

The last quake recorded within 30 km of Calco was 8 months ago.

Tip. Click a nearby town to explore its seismicity.

Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)

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