Earthquakes today in Arlena di Castro
Today, within 30 km: no earthquakes recorded (updated at 12:32). Latest: M2.0 on 10 October 2026 at 09:01, 6 km South-East of Viterbo, 10 km deep.
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 Arlena di Castro: 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 = 0.138 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Arlena di Castro. “In the town”: quakes whose nearest town to the epicentre is Arlena di Castro.
The seismic history of Arlena di Castro
The earthquakes that were actually felt in Arlena di Castro over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2005NF15 December 2005
Imperceptible: only instruments record it.
Val Nerina earthquake (M4.1), epicentre 84 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 108 km away
- 1997III26 September 1997
Light: felt by few people, like a passing truck.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 105 km away
- 1980III23 November 1980
Light: felt by few people, like a passing truck.
Irpinia-Basilicata earthquake (M6.8), epicentre 340 km away
- 1971VII-VIII6 February 1971
Ruinous: partial collapses in ordinary buildings, widespread heavy damage.
Tuscania earthquake (M4.8), epicentre 3 km away
- 1969II2 July 1969
Very light: felt only by a few people at rest, on upper floors.
Monti della Tolfa earthquake (M4.8), epicentre 36 km away
- 1917IV14 October 1917
Moderate: felt by many indoors; glasses and dishes rattle.
Montefiascone earthquake (M4.2), epicentre 20 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 81 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?
Arlena di Castro 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 Arlena di Castro today?
No, no quakes were recorded today within 30 km of Arlena di Castro. The latest dates back to 10 October 2026.
Is Arlena di Castro a seismic area?
Arlena di Castro 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 Arlena di Castro?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Arlena di Castro was magnitude 3.2, on 2 June 2016.
When was the last quake near Arlena di Castro?
The last quake recorded within 30 km of Arlena di Castro dates back to 10 October 2026, magnitude 2.0.
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)