Earthquakes today in Riano
Today, within 30 km: no earthquakes recorded (updated at 10:42). Latest: M1.3 on 19 September 2026 at 15:46, 2 km North of Monte Compatri, 9 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 Riano: zone 3
Medium-low seismicity: strong quakes are rare, but not impossible.
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 = 0.105 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Riano. “In the town”: quakes whose nearest town to the epicentre is Riano.
The seismic history of Riano
The earthquakes that were actually felt in Riano 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 75 km away
- 2001NF23 March 2001
Imperceptible: only instruments record it.
Sabina earthquake (M3.8), epicentre 20 km away
- 2000IV27 June 2000
Moderate: felt by many indoors; glasses and dishes rattle.
Valle dell'Aniene earthquake (M4.2), epicentre 41 km away
- 2000NF11 March 2000
Imperceptible: only instruments record it.
Valle dell'Aniene earthquake (M4.3), epicentre 41 km away
- 1998NF15 August 1998
Imperceptible: only instruments record it.
Reatino earthquake (M4.4), epicentre 53 km away
- 1997V6 November 1997
Rather strong: felt by almost everyone; hanging objects swing.
Monti Tiburtini earthquake (M4.2), epicentre 21 km away
- 1997IV14 October 1997
Moderate: felt by many indoors; glasses and dishes rattle.
Valnerina earthquake (M5.6), epicentre 96 km away
- 1997V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M6.0), epicentre 107 km away
- 1997IV-V26 September 1997
Rather strong: felt by almost everyone; hanging objects swing.
Appennino umbro-marchigiano earthquake (M5.7), epicentre 109 km away
- 1971NF6 February 1971
Imperceptible: only instruments record it.
Tuscania earthquake (M4.8), epicentre 70 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 40 km from Castelli Romani, 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?
Riano is about average for its province in recorded quakes.
Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.
Context
Province of Roma1 event · last 30 daysLazio region70 events · last 30 daysFrequently asked questions
Were there earthquakes near Riano today?
No, no quakes were recorded today within 30 km of Riano. The latest dates back to 19 September 2026.
Is Riano a seismic area?
Riano is classified in seismic zone 3 by the Civil Protection. Medium-low seismicity: strong quakes are rare, but not impossible.
What was the strongest earthquake near Riano?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Riano was magnitude 3.3, on 1 January 2023.
When was the last quake near Riano?
The last quake recorded within 30 km of Riano dates back to 19 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)