The Mediterranean basin is where two major continental plates meet: the African and Eurasian plates. Although south-eastern France lies some distance from the boundary between these plates, it is nevertheless affected by their convergence. Seismic tremors, which are not always felt, are regularly recorded in the region.
Over the past thirty years, around ten earthquakes with a magnitude greater than 4 have been felt along the French Riviera coastline, the most recent occurring north of Nice on 18 March 2025, with a magnitude of 4.1.
Cannes is classified as zone 3 under the national seismic zoning system, corresponding to a moderate level of seismic risk. From zone 2 upwards, earthquake-resistant construction standards apply to buildings.

Prevention relies on compliance with current earthquake-resistant construction standards (Eurocode 8), which are mandatory for all building permit holders. More
Earthquakes cannot be predicted, but they are continuously recorded by the Réseau national de surveillance sismique. When an earthquake occurs, this network works with the Bureau central sismologique français to produce a map of seismic intensities based on eyewitness observations.
Get real-time information on seismic events in France: https://renass.unistra.fr/fr/zones/
You can submit your observations at www.franceseisme.fr.
This macroseismic survey, conducted by the Bureau central sismologique français, records the damage caused and people’s experience of the earthquake in practical or qualitative terms, helping to determine the intensity felt.