Earthquakes today in Chiusi
Today, within 30 km: no earthquakes recorded (updated at 10:43). 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 Chiusi: 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 = 0.146 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Chiusi. “In the town”: quakes whose nearest town to the epicentre is Chiusi.
The seismic history of Chiusi
The earthquakes that were actually felt in Chiusi over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000IV-V1 April 2000
Rather strong: felt by almost everyone; hanging objects swing.
Monte Amiata earthquake (M4.5), epicentre 31 km away
- 1998IV5 April 1998
Moderate: felt by many indoors; glasses and dishes rattle.
Appennino umbro-marchigiano earthquake (M4.8), epicentre 69 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 77 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 74 km away
- 1979IV19 September 1979
Moderate: felt by many indoors; glasses and dishes rattle.
Valnerina earthquake (M5.8), epicentre 89 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 18 km away
- 1919V10 September 1919
Rather strong: felt by almost everyone; hanging objects swing.
Val di Paglia earthquake (M5.4), epicentre 30 km away
- 1919V29 June 1919
Rather strong: felt by almost everyone; hanging objects swing.
Mugello earthquake (M6.4), epicentre 109 km away
- 1915V13 January 1915
Rather strong: felt by almost everyone; hanging objects swing.
Marsica earthquake (M7.1), epicentre 173 km away
- 1909V25 August 1909
Rather strong: felt by almost everyone; hanging objects swing.
Crete Senesi earthquake (M5.3), epicentre 46 km away
- 1861VI-VII9 May 1861
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val di Chiana earthquake (M5.0), epicentre 6 km away
- 1861D9 May 1861
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Val di Chiana earthquake (M5.0), epicentre 6 km away · observed at Dolciano
…and 17 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 38 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?
Chiusi is among the quietest towns of its province: very few epicentres are recorded here.
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 region67 events · last 30 daysFrequently asked questions
Were there earthquakes near Chiusi today?
No, no quakes were recorded today within 30 km of Chiusi. The latest dates back to 29 September 2026.
Is Chiusi a seismic area?
Chiusi 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 Chiusi?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Chiusi was magnitude 3.6, on 6 December 2023.
When was the last quake near Chiusi?
The last quake recorded within 30 km of Chiusi 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)