UPDATE (7:50 a.m.): All lanes of Highway 50 are back open west of Canon City. PREVIOUS (8/22): Westbound Highway 50 is closed ...

Ecuadorian authorities have been placed on alert after a 1,500-meter column of steam, gas, and ash emanated Sunday from the Cotopaxi volcano, it was reported. The National Polytechnic School's ...

“We declare a state of emergency due to the unusual activity of Cotopaxi” Correa said “God willing, everything will go well and the volcano will not erupt.” Ecuador's President Rafael ...

Gravity monitoring at the Ecuadorian volcanoes Cotopaxi and Sierra Negra helped constrain mass movements (e.g., hydrothermal fluid migration in the case of Cotopaxi; recharge of magma below Sierra ...