Province of Viterbo

Earthquakes today in San Lorenzo Nuovo

Today, within 30 km: no earthquakes recorded (updated at 14:11). Latest: M1.3 on 29 September 2026 at 09:15, 3 km East of Arlena di Castro, 11 km deep.

1.3
very light

Latest earthquake within 30 km

3 km East of Arlena di Castro

14 days ago · 29 Sept 2026, 09:15
Depth 11 km

Seismic activity within 30 km

30 km radius
14
days since the last quake within 30 km
781
quakes recorded since 2015
~6 days
on average, one quake every
4.1
The strongest within 30 km
0 km South of Castel Giorgio
10 years ago · 30 May 2016, 22:24

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

How seismic is San Lorenzo Nuovo: zone 2

Zone2
Seismic 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.

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 = 0.142 g (10% probability of exceedance in 50 years, rigid soil).

Closest earthquake
Earthquake details
218
In the town
total on record
0
In the town
last 12 months
21
Within 30 km
last 12 months
M4.1
Strongest since 2015
Within 30 km

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

Latest earthquake attributed to San Lorenzo Nuovo: 16 March 2024 · 2,166 inhabitants

The seismic history of San Lorenzo Nuovo

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

  1. 2000IV1 April 2000

    Moderate: felt by many indoors; glasses and dishes rattle.

    Monte Amiata earthquake (M4.5), epicentre 25 km away

  2. 1997IV-V26 September 1997

    Rather strong: felt by almost everyone; hanging objects swing.

    Appennino umbro-marchigiano earthquake (M6.0), epicentre 85 km away

  3. 1997IV26 September 1997

    Moderate: felt by many indoors; glasses and dishes rattle.

    Appennino umbro-marchigiano earthquake (M5.7), epicentre 88 km away

  4. 1994IV-V9 February 1994

    Rather strong: felt by almost everyone; hanging objects swing.

    Val di Paglia earthquake (M3.5), epicentre 14 km away

  5. 1992IV-V7 February 1992

    Rather strong: felt by almost everyone; hanging objects swing.

    Monti Volsini earthquake (M3.8), epicentre 6 km away

  6. 1979IV19 September 1979

    Moderate: felt by many indoors; glasses and dishes rattle.

    Valnerina earthquake (M5.8), epicentre 85 km away

  7. 1957VI-VII6 December 1957

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

    Orvietano earthquake (M5.0), epicentre 10 km away

  8. 1940V16 October 1940

    Rather strong: felt by almost everyone; hanging objects swing.

    Val di Paglia earthquake (M5.3), epicentre 24 km away

  9. 1940IV19 June 1940

    Moderate: felt by many indoors; glasses and dishes rattle.

    Monte Amiata earthquake (M4.6), epicentre 26 km away

  10. 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

  11. 1919D10 September 1919

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

    Val di Paglia earthquake (M5.4), epicentre 17 km away

  12. 1909IV-V25 August 1909

    Rather strong: felt by almost everyone; hanging objects swing.

    Crete Senesi earthquake (M5.3), epicentre 67 km away

…and 12 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.

16955.8
Lazio settentrionale earthquake
11 June 1695 · 17 km from here
IXDestructive: many buildings partly or fully collapse.
12765.6
Orvietano earthquake
22 May 1276 · 15 km from here
VIII-IXDestructive: many buildings partly or fully collapse.
19195.4
Val di Paglia earthquake
10 September 1919 · 17 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
15455.3
Val d'Orcia earthquake
27 November 1545 · 49 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.

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 61 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

September 20262eventsmax 1.8
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
3 km East of Arlena di Castro
25 km South · 11 km
14 days ago
29 Sept 2026, 09:15
1.8
14 days ago
29 Sept 2026, 04:24
0.7
4 km East of Abbadia San Salvatore
28 km North-West · 10 km
1 month ago
31 Aug 2026, 18:00
1.1
1 km South of Latera
11 km South-West · 7 km
2 months ago
9 Aug 2026, 08:13
1.2
2 months ago
7 Aug 2026, 16:19
1.4
3 km South of Abbadia San Salvatore
27 km North-West · 6 km
2 months ago
3 Aug 2026, 05:35
1.4
3 km South of Abbadia San Salvatore
27 km North-West · 6 km
2 months ago
3 Aug 2026, 05:35
0.9
3 km North of Bolsena
5 km East · 10 km
3 months ago
22 Jul 2026, 22:39
1.1
4 km North of Bolsena
5 km East · 10 km
3 months ago
22 Jul 2026, 21:11
1.6
4 km North of Bolsena
4 km East · 11 km
3 months ago
21 Jul 2026, 20:41

Nearby towns

How does it compare with the surroundings?

San Lorenzo Nuovo sits in one of the most seismically active areas of its province: quakes are a familiar presence here, almost always light.

quietermore active
More epicentres than 100% of the 60 towns in the province.
San Lorenzo Nuovo218
Nearby towns average34

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 days
ISTAT code: 056047

Frequently asked questions

Were there earthquakes near San Lorenzo Nuovo today?

No, no quakes were recorded today within 30 km of San Lorenzo Nuovo. The latest dates back to 29 September 2026.

Is San Lorenzo Nuovo a seismic area?

San Lorenzo Nuovo 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 San Lorenzo Nuovo?

In the INGV catalogue since 2015, the strongest earthquake within 30 km of San Lorenzo Nuovo was magnitude 4.1, on 30 May 2016.

When was the last quake near San Lorenzo Nuovo?

The last quake recorded within 30 km of San Lorenzo Nuovo 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)