Earthquakes today in Piancastagnaio
Today, within 30 km: no earthquakes recorded (updated at 15:25). Latest: M1.8 on 29 September 2026 at 04:24, 3 km South-West of San Casciano dei Bagni, 5 km deep.
Latest earthquake within 30 km
3 km South-West of San Casciano dei Bagni
Seismic activity within 30 km
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is Piancastagnaio: zone 2
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 = 0.140 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Piancastagnaio. “In the town”: quakes whose nearest town to the epicentre is Piancastagnaio.
The seismic history of Piancastagnaio
The earthquakes that were actually felt in Piancastagnaio over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000VI-VII1 April 2000
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Monte Amiata earthquake (M4.5), epicentre 1 km away
- 1975VI16 April 1975
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monte Amiata earthquake (M4.2), epicentre 3 km away
- 1958IV30 May 1958
Moderate: felt by many indoors; glasses and dishes rattle.
Val di Paglia earthquake (M4.0), epicentre 11 km away
- 1948V-VI3 November 1948
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monte Amiata earthquake (M4.8), epicentre 10 km away
- 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 17 km away
- 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 17 km away · observed at Saragiolo
- 1926VI8 January 1926
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monte Amiata earthquake (M4.9), epicentre 5 km away
- 1919VII10 September 1919
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val di Paglia earthquake (M5.4), epicentre 10 km away
- 1909IV-V25 August 1909
Rather strong: felt by almost everyone; hanging objects swing.
Crete Senesi earthquake (M5.3), epicentre 43 km away
- 1902V-VI17 December 1902
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monte Amiata earthquake (M4.8), epicentre 7 km away
- 1815D11 January 1815
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monte Amiata earthquake (M4.9), epicentre 5 km away
- 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 9 km away
…and 10 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 69 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).
Over time within 30 km
Earthquake map within 30 km
60 eventsLatest earthquakes within 30 km
Nearby towns
How does it compare with the surroundings?
Piancastagnaio 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 Siena14 events · last 30 daysTuscany region66 events · last 30 daysFrequently asked questions
Were there earthquakes near Piancastagnaio today?
No, no quakes were recorded today within 30 km of Piancastagnaio. The latest dates back to 29 September 2026.
Is Piancastagnaio a seismic area?
Piancastagnaio 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 Piancastagnaio?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Piancastagnaio was magnitude 4.1, on 30 May 2016.
When was the last quake near Piancastagnaio?
The last quake recorded within 30 km of Piancastagnaio dates back to 29 September 2026, magnitude 1.8.
Tip. Click a nearby town to explore its seismicity.
Sources:INGV earthquake catalogueDBMI15 macroseismic historyCivil Protection seismic classification
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)