A “volcanic bomb,” a rock a yard and a half in diameter and weighing tons, marks the way and gives an idea of what the start of an eruption can mean. That is why the top area of the volcano is ...

This is read by an automated voice. Please report any issues or inconsistencies here. Mexican scientists have created the first three-dimensional map of Popocatépetl’s interior, revealing multiple ...

Popocatépetl Volcano, Mexico — In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world’s most active and whose eruption could affect millions ...