Earthquakes today in Onano
Today, within 30 km: no earthquakes recorded (updated at 10:59). Latest: M1.3 on 29 September 2026 at 09:15, 3 km East of Arlena di Castro, 11 km deep.
Latest earthquake within 30 km
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 Onano: zone 2
A zone where strong earthquakes are possible: new buildings follow strict anti-seismic criteria.
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 Onano. “In the town”: quakes whose nearest town to the epicentre is Onano.
The seismic history of Onano
The earthquakes that were actually felt in Onano 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 19 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 93 km away
- 1992IV-V7 February 1992
Rather strong: felt by almost everyone; hanging objects swing.
Monti Volsini earthquake (M3.8), epicentre 14 km away
- 1971IV-V6 February 1971
Rather strong: felt by almost everyone; hanging objects swing.
Tuscania earthquake (M4.8), epicentre 27 km away
- 1957V6 December 1957
Rather strong: felt by almost everyone; hanging objects swing.
Orvietano earthquake (M5.0), epicentre 18 km away
- 1940V16 October 1940
Rather strong: felt by almost everyone; hanging objects swing.
Val di Paglia earthquake (M5.3), epicentre 23 km away
- 1936V-VI15 June 1936
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monti Volsini earthquake (M3.8), epicentre 4 km away
- 1929VI12 December 1929
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monti Volsini earthquake (M4.2), epicentre 3 km away
- 1924V-VI9 April 1924
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Val di Paglia earthquake (M4.5), epicentre 5 km away
- 1922V-VI27 March 1922
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Monti Volsini earthquake (M4.4), epicentre 5 km away
- 1919VII10 September 1919
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Val di Paglia earthquake (M5.4), epicentre 12 km away
- 1909IV-V25 August 1909
Rather strong: felt by almost everyone; hanging objects swing.
Crete Senesi earthquake (M5.3), epicentre 62 km away
…and 13 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 68 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?
Onano 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 Viterbo2 events · last 30 daysLazio region70 events · last 30 daysFrequently asked questions
Were there earthquakes near Onano today?
No, no quakes were recorded today within 30 km of Onano. The latest dates back to 29 September 2026.
Is Onano a seismic area?
Onano is classified in seismic zone 2 by the Civil Protection. A zone where strong earthquakes are possible: new buildings follow strict anti-seismic criteria.
What was the strongest earthquake near Onano?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Onano was magnitude 4.1, on 30 May 2016.
When was the last quake near Onano?
The last quake recorded within 30 km of Onano dates back to 29 September 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)