Earthquakes in Castelfranco di Sotto
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~11 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 = 0.123 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Castelfranco di Sotto plus nearby towns.
The seismic history of Castelfranco di Sotto
The earthquakes that were actually felt in Castelfranco di Sotto over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1983IV9 November 1983
Moderate: felt by many indoors; glasses and dishes rattle.
Parmense earthquake (M5.0), epicentre 119 km away
- 1920VI7 September 1920
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Garfagnana earthquake (M6.5), epicentre 61 km away
- 1920V7 September 1920
Rather strong: felt by almost everyone; hanging objects swing.
Garfagnana earthquake (M6.5), epicentre 61 km away · observed at Orentano
- 1919IV29 June 1919
Moderate: felt by many indoors; glasses and dishes rattle.
Mugello earthquake (M6.4), epicentre 66 km away · observed at Orentano
- 1914VI27 October 1914
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Lucchesia earthquake (M5.6), epicentre 22 km away · observed at Orentano
- 1914V27 October 1914
Rather strong: felt by almost everyone; hanging objects swing.
Lucchesia earthquake (M5.6), epicentre 22 km away
- 1909IV13 January 1909
Moderate: felt by many indoors; glasses and dishes rattle.
Emilia Romagna orientale earthquake (M5.4), epicentre 122 km away · observed at Orentano
- 1904IV-V17 November 1904
Rather strong: felt by almost everyone; hanging objects swing.
Pistoiese earthquake (M5.1), epicentre 27 km away · observed at Orentano
- 1901IV-V22 September 1901
Rather strong: felt by almost everyone; hanging objects swing.
Valdelsa earthquake (M4.7), epicentre 27 km away · observed at Orentano
- 1899IV26 June 1899
Moderate: felt by many indoors; glasses and dishes rattle.
Valle del Bisenzio earthquake (M5.0), epicentre 41 km away · observed at Orentano
- 1897IV27 July 1897
Moderate: felt by many indoors; glasses and dishes rattle.
Valdarno inferiore earthquake (M4.3), epicentre 12 km away
- 1895V18 May 1895
Rather strong: felt by almost everyone; hanging objects swing.
Fiorentino earthquake (M5.5), epicentre 44 km away
…and 7 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 25 km from Livorno Hills, 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?
Castelfranco di Sotto 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 Pisa3 events · 30gTuscany region52 events · 30gFrequently asked questions
Were there earthquakes today in Castelfranco di Sotto?
No, no quakes were recorded today in the Castelfranco di Sotto area: the latest nearby dates back to 7 months ago.
Is Castelfranco di Sotto a seismic area?
Castelfranco di Sotto 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 Castelfranco di Sotto?
In the last ~11 years of INGV data, the strongest within 30 km of Castelfranco di Sotto was magnitude 3.9, in 2016.
When was the last quake near Castelfranco di Sotto?
The last quake recorded within 30 km of Castelfranco di Sotto was 4 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)