Earthquakes in Torrita di Siena
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 = 0.146 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Torrita di Siena plus nearby towns.
The seismic history of Torrita di Siena
The earthquakes that were actually felt in Torrita di Siena over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2001NF26 November 2001
Imperceptible: only instruments record it.
Casentino earthquake (M4.6), epicentre 57 km away
- 1998III-IV5 April 1998
Moderate: felt by many indoors; glasses and dishes rattle.
Appennino umbro-marchigiano earthquake (M4.8), epicentre 81 km away
- 1997III14 October 1997
Light: felt by few people, like a passing truck.
Valnerina earthquake (M5.6), epicentre 96 km away
- 1997III6 October 1997
Light: felt by few people, like a passing truck.
Appennino umbro-marchigiano earthquake (M5.5), epicentre 89 km away
- 1997III-IV3 October 1997
Moderate: felt by many indoors; glasses and dishes rattle.
Appennino umbro-marchigiano earthquake (M5.2), epicentre 87 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 93 km away
- 1997III26 September 1997
Light: felt by few people, like a passing truck.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 90 km away
- 1984IV29 April 1984
Moderate: felt by many indoors; glasses and dishes rattle.
Umbria settentrionale earthquake (M5.6), epicentre 63 km away
- 1979III-IV19 September 1979
Moderate: felt by many indoors; glasses and dishes rattle.
Valnerina earthquake (M5.8), epicentre 108 km away
- 1965IV4 August 1965
Moderate: felt by many indoors; glasses and dishes rattle.
Alta Valtiberina earthquake (M4.5), epicentre 66 km away
- 1909IV-V25 August 1909
Rather strong: felt by almost everyone; hanging objects swing.
Crete Senesi earthquake (M5.3), epicentre 29 km away
- 1908IV7 November 1908
Moderate: felt by many indoors; glasses and dishes rattle.
Val di Chiana earthquake (M4.3), epicentre 15 km away
…and 5 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 44 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?
Torrita di Siena 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 Siena8 events · 30gTuscany region112 events · 30gFrequently asked questions
Were there earthquakes today in Torrita di Siena?
No, no quakes were recorded today in the Torrita di Siena area: the latest nearby dates back to 6 days ago.
Is Torrita di Siena a seismic area?
Torrita di Siena 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 Torrita di Siena?
In the last ~12 years of INGV data, the strongest within 30 km of Torrita di Siena was magnitude 3.4, in 2019.
When was the last quake near Torrita di Siena?
The last quake recorded within 30 km of Torrita di Siena 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)