Earthquakes in San Casciano dei Bagni
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 = 0.144 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is San Casciano dei Bagni plus nearby towns.
The seismic history of San Casciano dei Bagni
The earthquakes that were actually felt in San Casciano dei Bagni over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000VI1 April 2000
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monte Amiata earthquake (M4.5), epicentre 14 km away
- 1998IV5 April 1998
Moderate: felt by many indoors; glasses and dishes rattle.
Appennino umbro-marchigiano earthquake (M4.8), epicentre 83 km away
- 1994IV9 February 1994
Moderate: felt by many indoors; glasses and dishes rattle.
Val di Paglia earthquake (M3.5), epicentre 8 km away
- 1947IV-V24 December 1947
Rather strong: felt by almost everyone; hanging objects swing.
Crete Senesi earthquake (M4.5), epicentre 32 km away
- 1940VII-VIII16 October 1940
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Val di Paglia earthquake (M5.3), epicentre 3 km away · observed at Celle sul Rigo
- 1940VI-VII16 October 1940
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val di Paglia earthquake (M5.3), epicentre 3 km away · observed at Palazzone
- 1940V-VI16 October 1940
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Val di Paglia earthquake (M5.3), epicentre 3 km away
- 1919VII-VIII10 September 1919
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Val di Paglia earthquake (M5.4), epicentre 9 km away · observed at Celle sul Rigo
- 1919VI-VII10 September 1919
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val di Paglia earthquake (M5.4), epicentre 9 km away
- 1861V9 May 1861
Rather strong: felt by almost everyone; hanging objects swing.
Val di Chiana earthquake (M5.0), epicentre 20 km away · observed at Celle sul Rigo
- 1777VII5 October 1777
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val di Paglia earthquake (M5.1), epicentre 8 km away · observed at Celle sul Rigo
- 1777VI-VII5 October 1777
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val di Paglia earthquake (M5.1), epicentre 8 km away
…and 17 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 55 km from Mugello-Citta' di Castello-Leonessa, 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?
San Casciano dei Bagni is about average for its province in recorded quakes.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Siena8 events · 30gTuscany region112 events · 30gFrequently asked questions
Were there earthquakes today in San Casciano dei Bagni?
No, no quakes were recorded today in the San Casciano dei Bagni area: the latest nearby dates back to 18 days ago.
Is San Casciano dei Bagni a seismic area?
San Casciano dei Bagni 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 San Casciano dei Bagni?
In the last ~12 years of INGV data, the strongest within 30 km of San Casciano dei Bagni was magnitude 4.1, in 2016.
When was the last quake near San Casciano dei Bagni?
The last quake recorded within 30 km of San Casciano dei Bagni was 16 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)