Province of Siena

Earthquakes today in Asciano

Today, within 30 km: no earthquakes recorded (updated at 13:14). Latest: M1.3 on 12 October 2026 at 01:14, 5 km North-West of Asciano, 4 km deep.

1.3
very light

Latest earthquake within 30 km

5 km North-West of Asciano

2 days ago · 12 Oct 2026, 01:14
Depth 4 km

Seismic activity within 30 km

30 km radius
1
day since the last quake within 30 km
685
quakes recorded since 2015
~6 days
on average, one quake every
3.7
The strongest within 30 km
2 km North-East of Siena
3 years ago · 8 Feb 2023, 21:51

INGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.

How seismic is Asciano: zone 3

Zone3
Seismic zone 3

Medium-low seismicity: strong quakes are rare, but not impossible.

Official Civil Protection classification (upd. 2025), used for building codes.

Low
Expected shaking, compared with the other Italian municipalities (INGV MPS04 model)

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).

Closest earthquake
Earthquake details
27
In the town
total on record
3
In the town
last 12 months
56
Within 30 km
last 12 months
M3.7
Strongest since 2015
Within 30 km

“Within 30 km”: epicentres less than 30 km from the centre of Asciano. “In the town”: quakes whose nearest town to the epicentre is Asciano.

Latest earthquake attributed to Asciano: 12 October 2026 · 7,228 inhabitants

The seismic history of Asciano

The earthquakes that were actually felt in Asciano over the centuries, with the intensity observed on site (Mercalli MCS scale).

  1. 1781VII-VIII3 January 1781

    Ruinous: partial collapses in ordinary buildings, widespread heavy damage.

    Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Chiusure

  2. 1781VI-VII3 January 1781

    Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

    Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Abbazia di Monteoliveto Maggiore

  3. 1781D3 January 1781

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at I Poggi

  4. 1781D3 January 1781

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Greppani

  5. 1781D3 January 1781

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Moccio

  6. 1781D3 January 1781

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Crete Senesi earthquake (M5.2), epicentre 6 km away · observed at Bollano

  7. 1781D3 January 1781

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Crete Senesi earthquake (M5.2), epicentre 6 km away

  8. 1726HD19 April 1726

    Destructive: many buildings partly or fully collapse.

    Crete Senesi earthquake (M5.3), epicentre 3 km away · observed at Abbadia a Rofeno

  9. 1726VI-VII19 April 1726

    Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

    Crete Senesi earthquake (M5.3), epicentre 3 km away · observed at Abbazia di Monteoliveto Maggiore

  10. 1726D19 April 1726

    Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.

    Crete Senesi earthquake (M5.3), epicentre 3 km away · observed at Podere Rigoli di sopra

  11. 1679VII24 March 1679

    Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

    Val d'Orcia earthquake (M4.9), epicentre 15 km away · observed at Abbazia di Monteoliveto Maggiore

  12. 1449VII15 October 1449

    Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

    Crete Senesi earthquake (M4.6), epicentre 3 km away

…and 36 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.

15586.0
Valdarno superiore earthquake
13 April 1558 · 26 km from here
IXDestructive: many buildings partly or fully collapse.
14145.7
Colline Metallifere earthquake
7 August 1414 · 34 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19095.3
Crete Senesi earthquake
25 August 1909 · 13 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
17265.3
Crete Senesi earthquake
19 April 1726 · 3 km from here

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Mugello-Citta' di Castello-Leonessa

The town lies about 49 km from Mugello-Citta' di Castello-Leonessa, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 6.9between 1 and 8 km deep

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

October 20267eventsmax 1.3
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul
Oct

Earthquake map within 30 km

60 events
Magnitude:lightweakmoderatestrong

Latest earthquakes within 30 km

1.3
5 km North-West of Asciano
5 km North-West · 4 km
2 days ago
12 Oct 2026, 01:14
1.0
2 days ago
11 Oct 2026, 13:13
0.9
4 km East of Sovicille
19 km West · 11 km
6 days ago
7 Oct 2026, 21:38
0.9
4 km East of Sovicille
19 km West · 11 km
6 days ago
7 Oct 2026, 21:38
1.1
5 km North-West of Buonconvento
9 km South-West · 9 km
6 days ago
7 Oct 2026, 18:11
1.1
5 km North-West of Buonconvento
9 km South-West · 9 km
6 days ago
7 Oct 2026, 18:11
0.8
8 days ago
5 Oct 2026, 12:06
1.6
16 days ago
27 Sept 2026, 16:31
0.7
16 days ago
27 Sept 2026, 02:12
1.3
22 days ago
21 Sept 2026, 13:25

Nearby towns

How does it compare with the surroundings?

Asciano records more quakes than the average of its province.

quietermore active
More epicentres than 68% of the 35 towns in the province.
Asciano27
Nearby towns average52

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 days
ISTAT code: 052002

Frequently asked questions

Were there earthquakes near Asciano today?

No, no quakes were recorded today within 30 km of Asciano. The latest dates back to 12 October 2026.

Is Asciano a seismic area?

Asciano 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 Asciano?

In the INGV catalogue since 2015, the strongest earthquake within 30 km of Asciano was magnitude 3.7, on 8 February 2023.

When was the last quake near Asciano?

The last quake recorded within 30 km of Asciano 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)