People evacuate a shopping centre in Mexico City as part of a drill to commemorate the 40th anniversary of the deadly 1985 earthquake, and the 8th anniversary of the 2017 earthquake that shook the country. Meanwhile, on a Tijuana beach, the Civil Protection department carries out the first tsunami evacuation drill. "It's important because many people don't know what to do, they go into shock," says Maricruz Romero. IMAGES AND SOUNDBITES