4 ms·
They are and they tend to be small because of the type of plate boundary they’re associated with. But when they’re coming in large swarms near a volcano which i
by bandyaboot 3y ago
They are and they tend to be small because of the type of plate boundary they’re associated with. But when they’re coming in large swarms near a volcano which is the case here, it’s a pretty strong signal of an impending eruption.