Earthquakes today in Piansano
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 Piansano: 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 = 0.140 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Piansano. “In the town”: quakes whose nearest town to the epicentre is Piansano.
The seismic history of Piansano
The earthquakes that were actually felt in Piansano 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 80 km away
- 2000IV1 April 2000
Moderate: felt by many indoors; glasses and dishes rattle.
Monte Amiata earthquake (M4.5), epicentre 38 km away
- 1997IV14 October 1997
Moderate: felt by many indoors; glasses and dishes rattle.
Valnerina earthquake (M5.6), epicentre 97 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 100 km away
- 1997IV26 September 1997
Moderate: felt by many indoors; glasses and dishes rattle.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 103 km away
- 1979III-IV19 September 1979
Moderate: felt by many indoors; glasses and dishes rattle.
Valnerina earthquake (M5.8), epicentre 95 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 8 km away
- 1969IV2 July 1969
Moderate: felt by many indoors; glasses and dishes rattle.
Monti della Tolfa earthquake (M4.8), epicentre 40 km away
- 1957III-IV6 December 1957
Moderate: felt by many indoors; glasses and dishes rattle.
Orvietano earthquake (M5.0), epicentre 27 km away
- 1940IV16 October 1940
Moderate: felt by many indoors; glasses and dishes rattle.
Val di Paglia earthquake (M5.3), epicentre 42 km away
- 1917IV14 October 1917
Moderate: felt by many indoors; glasses and dishes rattle.
Montefiascone earthquake (M4.2), epicentre 16 km away
- 1695VI-VII11 June 1695
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Lazio settentrionale earthquake (M5.8), epicentre 25 km away
…and 2 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 76 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?
Piansano 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 Viterbo2 events · last 30 daysLazio region70 events · last 30 daysFrequently asked questions
Were there earthquakes near Piansano today?
No, no quakes were recorded today within 30 km of Piansano. The latest dates back to 29 September 2026.
Is Piansano a seismic area?
Piansano 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 Piansano?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Piansano was magnitude 4.1, on 30 May 2016.
When was the last quake near Piansano?
The last quake recorded within 30 km of Piansano 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)