Local residents and authorities in southern Mexico have restored the water flow to a series of crystalline pools and waterfalls known as Agua Azul. The flow of pristine water had been interrupted by a Sept. 19 magnitude-7.1 quake and a Sept. 7 temblor with a magnitude of 8.1. The quakes had altered a branch in the river in Chiapas state, sending more water to a less-visited channel, however despite some media reports the rivers never dried up. Lo…