What are some of the causes of earthquakes and volcanoes?

Some, but not all, earthquakes are related to volcanoes. For example, most earthquakes are along the edges of tectonic plates. This is where most volcanoes are too. However, most earthquakes are caused by the interaction of the plates not the movement of magma . read more

Plate tectonics is the ONLY reason for volcanos and earthquakes. Earth Quakes occur along the plate margins as long faults such as the San Andreas fault. read more

Some, but not all, earthquakes are related to volcanoes. For example, most earthquakes are along the edges of tectonic plates. This is where most volcanoes are too. However, most earthquakes are caused by the interaction of the plates not the movement of magma. Most earthquakes directly beneath a volcano are caused by the movement of magma. read more