Combined image taken with a drone on Sept. 19, 2017 (Top) shows rescuers working at the site of a collapsed building after an earthquake in the number 286 of the Alvaro Obregon street, and on Sept. 19, 2018 (Bottom) shows people taking part in an homage during the commemoration of the first anniversary of the 7.1-magnitude earthquake of Sept. 19, 2017, in Mexico City, capital of Mexico. (Xinhua/Cesar Vicuna)
