Earthquakes in Trontano
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?
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 = 0.061 g (10% probability of exceedance in 50 years, rigid soil).
The “area” is Trontano plus nearby towns.
The seismic history of Trontano
The earthquakes that were actually felt in Trontano over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2005NF8 September 2005
Imperceptible: only instruments record it.
Massif du Mont-Blanc earthquake (M4.4), epicentre 115 km away
- 1993V14 June 1993
Rather strong: felt by almost everyone; hanging objects swing.
Val d'Ossola earthquake (M4.3), epicentre 15 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 39 km from Western Valais, 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
24 eventsEarthquakes in the area
Nearby towns
How does it compare with the surroundings?
Trontano records more quakes 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 Verbano-Cusio-Ossola2 events · 30gPiedmont region36 events · 30gFrequently asked questions
Were there earthquakes today in Trontano?
No, no quakes were recorded today in the Trontano area: the latest nearby dates back to 2 months ago.
Is Trontano a seismic area?
Trontano 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 Trontano?
In the last ~12 years of INGV data, the strongest within 30 km of Trontano was magnitude 2.3, in 2022.
When was the last quake near Trontano?
The last quake recorded within 30 km of Trontano was 1 month ago.
Tip. Click a nearby town to explore its seismicity.
Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)