Expedition will explore ocean depths to gather seismic data off coast of Central America
Most of the major natural hazards associated with geological activity—including major earthquakes, volcanic eruptions and tsunamis—occur when the rigid tectonic plates in the planet’s lithosphere, or outer layer, collide. Beneath the plates lies the asthenosphere, a 200-mile-thick layer of the Earth’s upper mantle made of very hot material,… Read more