Earthquakes near volcanoes Earthquakes often precede volcanic eruptions. Find out where the latest earthquakes in the vicinity of volcanoes have occurred.
Igneous or magmatic rocks The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
Worldwide earthquake activity level What is the level of global earthquake activity today compared to the past? Find out with our graph showing the current and past Global Seismic Activity Level indicator!