Most of what we know about earthquakes and volcanoes is based on what we can observe at the Earth’s surface. However, most of the action, especially early activity that could help with disaster prediction and preparedness, occurs deep underground.
Most of what we know about earthquakes and volcanoes is based on what we can observe at the Earth’s surface. However, most of the action, especially early activity that could help with disaster prediction and preparedness, occurs deep underground.