[...]
In 2012, France established the National Centre for Tsunami Alert (Cenalt), with seismometers working 24 hours a day to monitor earthquake activity around the country - with an eye towards predicting tsunamis on the coast.
[...]
However, even smaller waves can cause damage. In October 1979 an underwater landslide caused a tsunami in Nice. A 3-metre high wave hit the coast, killing 11 people and sending water 150 metres inland.
[...]
Cities along the French Rivera have organised drills to raise awareness of the risks, and teach people what to do in the event of a tsunami being detected. In some cases, people would have as little as 15 minutes to move to higher ground.
The coast of south-eastern France, between the sea and the Alps, is an active seismic zone, and earthquakes are recorded regularly. In mid December a 3.7 magnitude quake was recorded off the coast of Nice.
[...]