Earthquakes in Alatri
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?
A zone where strong earthquakes are possible: new buildings follow strict anti-seismic criteria.
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 = 0.176 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Alatri plus nearby towns.
The seismic history of Alatri
The earthquakes that were actually felt in Alatri over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2016V30 October 2016
Rather strong: felt by almost everyone; hanging objects swing.
Valnerina earthquake (M6.6), epicentre 122 km away
- 1984VI7 May 1984
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monti della Meta earthquake (M5.9), epicentre 56 km away
- 1980V1 October 1980
Rather strong: felt by almost everyone; hanging objects swing.
Frusinate earthquake (M4.3), epicentre 11 km away
- 1979IV-V19 September 1979
Rather strong: felt by almost everyone; hanging objects swing.
Valnerina earthquake (M5.8), epicentre 115 km away
- 1922V29 December 1922
Rather strong: felt by almost everyone; hanging objects swing.
Val Roveto earthquake (M5.2), epicentre 20 km away
- 1917V8 July 1917
Rather strong: felt by almost everyone; hanging objects swing.
Appennino laziale-abruzzese earthquake (M4.7), epicentre 45 km away
- 1915VIII13 January 1915
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Marsica earthquake (M7.1), epicentre 31 km away
- 1902V-VI21 September 1902
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Ciociaria earthquake (M4.0), epicentre 6 km away
- 1901V31 July 1901
Rather strong: felt by almost everyone; hanging objects swing.
Sorano earthquake (M5.2), epicentre 30 km away
- 1891IV-V9 May 1891
Rather strong: felt by almost everyone; hanging objects swing.
Val Roveto earthquake (M4.4), epicentre 10 km away
- 1877VI24 August 1877
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Lazio meridionale earthquake (M5.2), epicentre 6 km away
- 1873VI12 July 1873
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Val Comino earthquake (M5.4), epicentre 33 km away
…and 33 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 23 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?
Alatri sits in one of the most seismically active areas of its province: quakes are a familiar presence here, almost always light.
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 Alatri?
No, no quakes were recorded today in the Alatri area: the latest nearby dates back to 7 days ago.
Is Alatri a seismic area?
Alatri is classified in seismic zone 2 by the Civil Protection. A zone where strong earthquakes are possible: new buildings follow strict anti-seismic criteria.
What was the strongest earthquake near Alatri?
In the last ~12 years of INGV data, the strongest within 30 km of Alatri was magnitude 4.4, in 2019.
When was the last quake near Alatri?
The last quake recorded within 30 km of Alatri was 7 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)