Earthquakes today in Seggiano
Today, within 30 km: no earthquakes recorded (updated at 10:44). 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 Seggiano: 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 = 0.140 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Seggiano. “In the town”: quakes whose nearest town to the epicentre is Seggiano.
The seismic history of Seggiano
The earthquakes that were actually felt in Seggiano over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2000III1 April 2000
Light: felt by few people, like a passing truck.
Monte Amiata earthquake (M4.5), epicentre 14 km away
- 1997NF14 October 1997
Imperceptible: only instruments record it.
Valnerina earthquake (M5.6), epicentre 108 km away
- 1997NF26 September 1997
Imperceptible: only instruments record it.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 108 km away
- 1987NF22 January 1987
Imperceptible: only instruments record it.
Costa pisano-livornese earthquake (M4.2), epicentre 132 km away
- 1984NF29 April 1984
Imperceptible: only instruments record it.
Umbria settentrionale earthquake (M5.6), epicentre 86 km away
- 1948VI3 November 1948
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monte Amiata earthquake (M4.8), epicentre 7 km away
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 70 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?
Seggiano 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 Grosseto5 events · last 30 daysTuscany region67 events · last 30 daysFrequently asked questions
Were there earthquakes near Seggiano today?
No, no quakes were recorded today within 30 km of Seggiano. The latest dates back to 29 September 2026.
Is Seggiano a seismic area?
Seggiano 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 Seggiano?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Seggiano was magnitude 3.4, on 15 June 2019.
When was the last quake near Seggiano?
The last quake recorded within 30 km of Seggiano 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)