Earthquakes in Formello
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 = 0.078 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Formello plus nearby towns.
The seismic history of Formello
The earthquakes that were actually felt in Formello over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2005NF15 December 2005
Imperceptible: only instruments record it.
Val Nerina earthquake (M4.1), epicentre 80 km away
- 1997IV-V6 November 1997
Rather strong: felt by almost everyone; hanging objects swing.
Monti Tiburtini earthquake (M4.2), epicentre 31 km away
- 1997IV14 October 1997
Moderate: felt by many indoors; glasses and dishes rattle.
Valnerina earthquake (M5.6), epicentre 101 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 113 km away
- 1987III11 April 1987
Light: felt by few people, like a passing truck.
Colli Albani earthquake (M4.3), epicentre 51 km away
- 1927II26 December 1927
Very light: felt only by a few people at rest, on upper floors.
Colli Albani earthquake (M4.9), epicentre 47 km away
- 1919III-IV22 October 1919
Moderate: felt by many indoors; glasses and dishes rattle.
Anzio earthquake (M5.2), epicentre 71 km away
- 1911V10 April 1911
Rather strong: felt by almost everyone; hanging objects swing.
Colli Albani earthquake (M4.7), epicentre 37 km away
- 1909IV31 August 1909
Moderate: felt by many indoors; glasses and dishes rattle.
Roma earthquake (M4.2), epicentre 14 km away
- 1901IV-V24 April 1901
Rather strong: felt by almost everyone; hanging objects swing.
Sabina earthquake (M5.3), epicentre 27 km away
- 1895IV1 November 1895
Moderate: felt by many indoors; glasses and dishes rattle.
Campagna romana earthquake (M4.8), epicentre 33 km away
- 1892F22 January 1892
Moderate: felt by many indoors; glasses and dishes rattle.
Colli Albani earthquake (M5.1), epicentre 45 km away
…and 5 more documented effects in this town's history.
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 46 km from Castelli Romani, 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
56 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Formello records more quakes 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 Roma0 events · 30gLazio region80 events · 30gFrequently asked questions
Were there earthquakes today in Formello?
No, no quakes were recorded today in the Formello area: the latest nearby dates back to 11 months ago.
Is Formello a seismic area?
Formello 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 Formello?
In the last ~12 years of INGV data, the strongest within 30 km of Formello was magnitude 3.3, in 2023.
When was the last quake near Formello?
The last quake recorded within 30 km of Formello was 2 months ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)