Earthquakes in Colle San Magno
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 most severe class: strong earthquakes are possible here and buildings follow the strictest anti-seismic rules.
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 = 0.218 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Colle San Magno plus nearby towns.
The seismic history of Colle San Magno
The earthquakes that were actually felt in Colle San Magno over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1980IV14 June 1980
Moderate: felt by many indoors; glasses and dishes rattle.
Marsica earthquake (M5.0), epicentre 38 km away
- 1969V17 April 1969
Rather strong: felt by almost everyone; hanging objects swing.
Terelle earthquake (M4.6), epicentre 7 km away
- 1915D13 January 1915
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Marsica earthquake (M7.1), epicentre 53 km away
- 1901VI31 July 1901
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Sorano earthquake (M5.2), epicentre 18 km away
- 1654VI24 July 1654
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Sorano earthquake (M6.3), epicentre 9 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 21 km from Salto Lake-Ovindoli-Barrea, 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?
Colle San Magno is quieter 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 Frosinone6 events · 30gLazio region80 events · 30gFrequently asked questions
Were there earthquakes today in Colle San Magno?
Yes: today the Colle San Magno area (town and surroundings) recorded 3 quakes; the most recent 3 hours ago.
Is Colle San Magno a seismic area?
Colle San Magno is classified in seismic zone 1 by the Civil Protection. The most severe class: strong earthquakes are possible here and buildings follow the strictest anti-seismic rules.
What was the strongest earthquake near Colle San Magno?
In the last ~12 years of INGV data, the strongest within 30 km of Colle San Magno was magnitude 4.4, in 2019.
When was the last quake near Colle San Magno?
The last quake recorded within 30 km of Colle San Magno was 3 hours ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)