Earthquakes in Monteriggioni
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 Monteriggioni plus nearby towns.
The seismic history of Monteriggioni
The earthquakes that were actually felt in Monteriggioni over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1979IV19 September 1979
Moderate: felt by many indoors; glasses and dishes rattle.
Valnerina earthquake (M5.8), epicentre 157 km away · observed at Acquaviva
- 1956IV22 February 1956
Moderate: felt by many indoors; glasses and dishes rattle.
Senese earthquake (M4.0), epicentre 9 km away
- 1940V31 January 1940
Rather strong: felt by almost everyone; hanging objects swing.
Siena earthquake (M4.2), epicentre 13 km away
- 1940IV31 January 1940
Moderate: felt by many indoors; glasses and dishes rattle.
Siena earthquake (M4.2), epicentre 13 km away · observed at Santa Colomba
- 1911VI-VII13 September 1911
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Chianti earthquake (M5.1), epicentre 12 km away · observed at Quercegrossa
- 1911VI-VII13 September 1911
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Chianti earthquake (M5.1), epicentre 12 km away
- 1909VI25 August 1909
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.3), epicentre 28 km away
- 1859VI-VII12 April 1859
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Senese earthquake (M4.8), epicentre 11 km away · observed at Uopini
- 1859VI12 April 1859
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Senese earthquake (M4.5), epicentre 8 km away · observed at Colombaio
- 1859HF12 April 1859
Rather strong: felt by almost everyone; hanging objects swing.
Senese earthquake (M4.5), epicentre 8 km away · observed at Basciano
- 1859IV12 April 1859
Moderate: felt by many indoors; glasses and dishes rattle.
Senese earthquake (M4.8), epicentre 11 km away · observed at Quercegrossa
- 1859IV12 April 1859
Moderate: felt by many indoors; glasses and dishes rattle.
Senese earthquake (M4.8), epicentre 11 km away · observed at Santa Colomba
…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 53 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?
Monteriggioni 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 Monteriggioni?
No, no quakes were recorded today in the Monteriggioni area: the latest nearby dates back to 12 days ago.
Is Monteriggioni a seismic area?
Monteriggioni 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 Monteriggioni?
In the last ~12 years of INGV data, the strongest within 30 km of Monteriggioni was magnitude 3.8, in 2015.
When was the last quake near Monteriggioni?
The last quake recorded within 30 km of Monteriggioni was 12 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)