Sourceswww.bing.com/ck/a?!&&p=e832b802716b29b5JmltdHM9MTY3NjE2MDAwMCZpZ3VpZD0xYTQ2ZjI0Ny1lZWVhLTY2NGEtMWE3Ny1lMGU3ZWZkZDY3NzcmaW5zaWQ9NTIxMA&ptn=3&hsh=3&fclid=1a46f247-eeea-664a-1a77-e0e7efdd6777&psq=Contraintes+d%27un+s%c3%a9isme&u=a1aHR0cHM6Ly93d3cudml www.pourquoidocteur.fr/Articles/Question-d-actu/42248-Seisme-72-premieres-heures-cruciales-les-sauveteurs previsionseismes.wordpress.com/2016/02/17/introduction/