Earthquakes today in Monteroni d'Arbia
Today, within 30 km: no earthquakes recorded (updated at 13:18). Latest: M1.3 on 12 October 2026 at 01:14, 5 km North-West of Asciano, 4 km deep.
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 Monteroni d'Arbia: zone 3
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).
“Within 30 km”: epicentres less than 30 km from the centre of Monteroni d'Arbia. “In the town”: quakes whose nearest town to the epicentre is Monteroni d'Arbia.
The seismic history of Monteroni d'Arbia
The earthquakes that were actually felt in Monteroni d'Arbia over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 1997III26 September 1997
Light: felt by few people, like a passing truck.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 122 km away
- 1940IV31 January 1940
Moderate: felt by many indoors; glasses and dishes rattle.
Siena earthquake (M4.2), epicentre 15 km away
- 1914F15 May 1914
Moderate: felt by many indoors; glasses and dishes rattle.
Chianti earthquake (M4.2), epicentre 25 km away
- 1911V13 September 1911
Rather strong: felt by almost everyone; hanging objects swing.
Chianti earthquake (M5.1), epicentre 24 km away
- 1909VII-VIII25 August 1909
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Crete Senesi earthquake (M5.3), epicentre 9 km away
- 1909VII-VIII25 August 1909
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Crete Senesi earthquake (M5.3), epicentre 9 km away · observed at Ponte d'Arbia
- 1909VII-VIII25 August 1909
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Crete Senesi earthquake (M5.3), epicentre 9 km away · observed at Saltennano
- 1907F20 December 1907
Moderate: felt by many indoors; glasses and dishes rattle.
Chianti earthquake (M4.4), epicentre 29 km away
- 1906IV21 April 1906
Moderate: felt by many indoors; glasses and dishes rattle.
Valdelsa earthquake (M4.3), epicentre 31 km away
- 1859IV12 April 1859
Moderate: felt by many indoors; glasses and dishes rattle.
Senese earthquake (M4.8), epicentre 12 km away
- 1781D3 January 1781
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M5.2), epicentre 14 km away · observed at Caggiolo
- 1781V3 January 1781
Rather strong: felt by almost everyone; hanging objects swing.
Crete Senesi earthquake (M5.2), epicentre 14 km away
…and 15 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).
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?
Monteroni d'Arbia sits in one of the most seismically active areas of its province: quakes are a familiar presence here, almost always light.
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 Monteroni d'Arbia today?
No, no quakes were recorded today within 30 km of Monteroni d'Arbia. The latest dates back to 12 October 2026.
Is Monteroni d'Arbia a seismic area?
Monteroni d'Arbia 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 Monteroni d'Arbia?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Monteroni d'Arbia was magnitude 3.7, on 8 February 2023.
When was the last quake near Monteroni d'Arbia?
The last quake recorded within 30 km of Monteroni d'Arbia dates back to 12 October 2026, magnitude 1.3.
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)