Earthquakes today in Oggiona con Santo Stefano
Today, within 30 km: no earthquakes recorded (updated at 19:14). Latest: M1.5 on 1 January 2025 at 23:47, 2 km North-West of Cassinetta di Lugagnano, 12 km deep.
Latest earthquake within 30 km
2 km North-West of Cassinetta di Lugagnano
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 Oggiona con Santo Stefano: zone 4
The quietest class: the probability of strong earthquakes is very low.
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 = 0.038 g (10% probability of exceedance in 50 years, rigid soil).
Why the ground rarely shakes here
Oggiona con Santo Stefano sits in one of the most stable areas of Italy: far from the boundary between the Eurasian and African plates, on ancient, rigid crust that hardly accumulates tectonic stress any more.
That is why earthquakes here are rare and almost always weak: a small geological privilege.
“Within 30 km”: epicentres less than 30 km from the centre of Oggiona con Santo Stefano. “In the town”: quakes whose nearest town to the epicentre is Oggiona con Santo Stefano.
The seismic history of Oggiona con Santo Stefano
The earthquakes that were actually felt in Oggiona con Santo Stefano over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2002NF13 November 2002
Imperceptible: only instruments record it.
Franciacorta earthquake (M4.2), epicentre 103 km away · observed at Oggiona con Santo Stefano (Santo Stefano)
- 2000NF21 August 2000
Imperceptible: only instruments record it.
Monferrato earthquake (M4.9), epicentre 94 km away · observed at Oggiona con Santo Stefano (Santo Stefano)
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 42 km from Western S-Alps internal thrust, 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
6 eventsLatest earthquakes within 30 km
Nearby towns
How does it compare with the surroundings?
Oggiona con Santo Stefano 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 Varese0 events · last 30 daysLombardy region14 events · last 30 daysFrequently asked questions
Were there earthquakes near Oggiona con Santo Stefano today?
No, no quakes were recorded today within 30 km of Oggiona con Santo Stefano. The latest dates back to 1 January 2025.
Is Oggiona con Santo Stefano a seismic area?
Oggiona con Santo Stefano is classified in seismic zone 4 by the Civil Protection. The quietest class: the probability of strong earthquakes is very low.
What was the strongest earthquake near Oggiona con Santo Stefano?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Oggiona con Santo Stefano was magnitude 2.6, on 20 May 2019.
When was the last quake near Oggiona con Santo Stefano?
The last quake recorded within 30 km of Oggiona con Santo Stefano dates back to 1 January 2025, magnitude 1.5.
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)