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 ...

Learn more about these signs of summertime cold, perhaps tied to volcanic activity in 1877 and 1902.

Cotopaxi volcano is THE iconic peak of Ecuador... similar to Mount Fuji is in Japan. The perfectly symmetrical snow-capped ...

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 ...