Earthquakes in Asciano
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 = 0.141 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Asciano plus nearby towns.
The seismic history of Asciano
The earthquakes that were actually felt in Asciano over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1781VII-VIII3 January 1781
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Chiusure
- 1781VI-VII3 January 1781
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Abbazia di Monteoliveto Maggiore
- 1781D3 January 1781
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at I Poggi
- 1781D3 January 1781
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Greppani
- 1781D3 January 1781
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Moccio
- 1781D3 January 1781
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Bollano
- 1781D3 January 1781
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.2), epicentre 6 km away
- 1726HD19 April 1726
Destructive: many buildings partly or fully collapse.
Crete Senesi earthquake (M5.3), epicentre 3 km away · observed at Abbadia a Rofeno
- 1726VI-VII19 April 1726
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Crete Senesi earthquake (M5.3), epicentre 3 km away · observed at Abbazia di Monteoliveto Maggiore
- 1726D19 April 1726
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.3), epicentre 3 km away · observed at Podere Rigoli di sopra
- 1679VII24 March 1679
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val d'Orcia earthquake (M4.9), epicentre 15 km away · observed at Abbazia di Monteoliveto Maggiore
- 1449VII15 October 1449
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Crete Senesi earthquake (M4.6), epicentre 3 km away
…and 36 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 49 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?
Asciano 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 Siena8 events · 30gTuscany region112 events · 30gFrequently asked questions
Were there earthquakes today in Asciano?
No, no quakes were recorded today in the Asciano area: the latest nearby dates back to 6 days ago.
Is Asciano a seismic area?
Asciano 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 Asciano?
In the last ~12 years of INGV data, the strongest within 30 km of Asciano was magnitude 3.7, in 2023.
When was the last quake near Asciano?
The last quake recorded within 30 km of Asciano was 6 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)