Earthquakes in San Leo
Seismic activity in the surroundings
30 km radiusINGV catalogue epicentres of the last ~11 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 = 0.176 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is San Leo plus nearby towns.
The seismic history of San Leo
The earthquakes that were actually felt in San Leo over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2001III-IV26 November 2001
Moderate: felt by many indoors; glasses and dishes rattle.
Casentino earthquake (M4.6), epicentre 41 km away
- 2000VI1 August 2000
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Montefeltro earthquake (M4.3), epicentre 4 km away
- 1987IV5 July 1987
Moderate: felt by many indoors; glasses and dishes rattle.
Montefeltro earthquake (M4.4), epicentre 22 km away
- 1984IV29 April 1984
Moderate: felt by many indoors; glasses and dishes rattle.
Umbria settentrionale earthquake (M5.6), epicentre 73 km away · observed at Pietracuta
- 1984IV29 April 1984
Moderate: felt by many indoors; glasses and dishes rattle.
Umbria settentrionale earthquake (M5.6), epicentre 73 km away
- 1962V30 August 1962
Rather strong: felt by almost everyone; hanging objects swing.
Montefeltro earthquake (M4.8), epicentre 19 km away
- 1919IV29 June 1919
Moderate: felt by many indoors; glasses and dishes rattle.
Mugello earthquake (M6.4), epicentre 72 km away
- 1918IV-V10 November 1918
Rather strong: felt by almost everyone; hanging objects swing.
Appennino forlivese earthquake (M6.0), epicentre 36 km away
- 1916IV16 August 1916
Moderate: felt by many indoors; glasses and dishes rattle.
Riminese earthquake (M5.8), epicentre 31 km away
- 1786VII25 December 1786
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Riminese earthquake (M5.7), epicentre 17 km away · observed at Pietracuta
- 1786VI-VII25 December 1786
Very strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.
Riminese earthquake (M5.7), epicentre 17 km away
- 1747VI17 April 1747
Strong: felt by everyone, many get scared; objects fall, first light damage to buildings.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 85 km away · observed at Montemaggio
…and 16 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 10 km from Riminese onshore, 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?
San Leo is quieter than the average of its province.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Rimini0 events · 30gEmilia-Romagna region108 events · 30gFrequently asked questions
Were there earthquakes today in San Leo?
No, no quakes were recorded today in the San Leo area: the latest nearby dates back to 3 months ago.
Is San Leo a seismic area?
San Leo 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 Leo?
In the last ~11 years of INGV data, the strongest within 30 km of San Leo was magnitude 4.1, in 2023.
When was the last quake near San Leo?
The last quake recorded within 30 km of San Leo was yesterday.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)