Earthquakes today in Chianciano Terme
Today, within 30 km: no earthquakes recorded (updated at 10:54). 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 Chianciano Terme: 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 = 0.143 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Chianciano Terme. “In the town”: quakes whose nearest town to the epicentre is Chianciano Terme.
The seismic history of Chianciano Terme
The earthquakes that were actually felt in Chianciano Terme over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2001IV26 November 2001
Moderate: felt by many indoors; glasses and dishes rattle.
Casentino earthquake (M4.6), epicentre 67 km away
- 1998III-IV5 April 1998
Moderate: felt by many indoors; glasses and dishes rattle.
Appennino umbro-marchigiano earthquake (M4.8), epicentre 78 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 87 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 84 km away
- 1984IV29 April 1984
Moderate: felt by many indoors; glasses and dishes rattle.
Umbria settentrionale earthquake (M5.6), epicentre 62 km away
- 1940V16 October 1940
Rather strong: felt by almost everyone; hanging objects swing.
Val di Paglia earthquake (M5.3), epicentre 17 km away
- 1926IV8 January 1926
Moderate: felt by many indoors; glasses and dishes rattle.
Monte Amiata earthquake (M4.9), epicentre 26 km away
- 1909V25 August 1909
Rather strong: felt by almost everyone; hanging objects swing.
Crete Senesi earthquake (M5.3), epicentre 37 km away
- 1902IV-V17 December 1902
Rather strong: felt by almost everyone; hanging objects swing.
Monte Amiata earthquake (M4.8), epicentre 28 km away
- 1861V-VI9 May 1861
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Val di Chiana earthquake (M5.0), epicentre 15 km away
- 1861V9 May 1861
Rather strong: felt by almost everyone; hanging objects swing.
Val di Chiana earthquake (M5.0), epicentre 15 km away · observed at Argiano
- 1781D11 January 1781
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Crete Senesi earthquake (M4.9), epicentre 29 km away
…and 14 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 47 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?
Chianciano Terme 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 Chianciano Terme today?
No, no quakes were recorded today within 30 km of Chianciano Terme. The latest dates back to 29 September 2026.
Is Chianciano Terme a seismic area?
Chianciano Terme 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 Chianciano Terme?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Chianciano Terme was magnitude 3.4, on 15 June 2019.
When was the last quake near Chianciano Terme?
The last quake recorded within 30 km of Chianciano Terme 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)