Earthquakes today in Grognardo
Today, within 30 km: 1 earthquake recorded, magnitude 0.4 (updated at 13:16). Latest: M0.4 on 13 October 2026 at 11:56, 4 km South-East of Cairo Montenotte, 9 km deep.
Latest earthquake within 30 km
4 km South-East of Cairo Montenotte
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 Grognardo: 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 = 0.058 g (10% probability of exceedance in 50 years, rigid soil).
“Within 30 km”: epicentres less than 30 km from the centre of Grognardo. “In the town”: quakes whose nearest town to the epicentre is Grognardo.
The seismic history of Grognardo
The earthquakes that were actually felt in Grognardo over the centuries, with the intensity observed on site (Mercalli MCS scale).
- 2001III18 July 2001
Light: felt by few people, like a passing truck.
Monferrato earthquake (M4.2), epicentre 20 km away
- 2000IV-V21 August 2000
Rather strong: felt by almost everyone; hanging objects swing.
Monferrato earthquake (M4.9), epicentre 33 km away
- 1989NF26 December 1989
Imperceptible: only instruments record it.
Mar Ligure earthquake (M4.5), epicentre 146 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 41 km from Eastern Monferrato, 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?
Grognardo 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 Alessandria0 events · last 30 daysPiedmont region58 events · last 30 daysFrequently asked questions
Were there earthquakes near Grognardo today?
Yes: today 1 quake was recorded within 30 km of Grognardo, at 11:56, magnitude 0.4.
Is Grognardo a seismic area?
Grognardo 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 Grognardo?
In the INGV catalogue since 2015, the strongest earthquake within 30 km of Grognardo was magnitude 3.1, on 11 September 2020.
When was the last quake near Grognardo?
The last quake recorded within 30 km of Grognardo dates back to 13 October 2026, magnitude 0.4.
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)