Earthquakes in Tessennano
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.
How seismic is this area?
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).
The “area” is Tessennano plus nearby towns.
The seismic history of Tessennano
The earthquakes that were actually felt in Tessennano 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 86 km away
- 1997NF14 October 1997
Imperceptible: only instruments record it.
Valnerina earthquake (M5.6), epicentre 103 km away
- 1997III26 September 1997
Light: felt by few people, like a passing truck.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 107 km away
- 1997NF26 September 1997
Imperceptible: only instruments record it.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 110 km away
- 1971VI-VII6 February 1971
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Tuscania earthquake (M4.8), epicentre 6 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 37 km away
- 1940IV16 October 1940
Moderate: felt by many indoors; glasses and dishes rattle.
Val di Paglia earthquake (M5.3), epicentre 48 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 83 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).
Area over time
Earthquake map
60 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Tessennano 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 Viterbo1 events · 30gLazio region79 events · 30gFrequently asked questions
Were there earthquakes today in Tessennano?
No, no quakes were recorded today in the Tessennano area: the latest nearby dates back to 16 days ago.
Is Tessennano a seismic area?
Tessennano 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 Tessennano?
In the last ~12 years of INGV data, the strongest within 30 km of Tessennano was magnitude 3.2, in 2016.
When was the last quake near Tessennano?
The last quake recorded within 30 km of Tessennano was 16 days ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)