So the earth is made by crust inner core out/outer core also mental and the earthquakes happens if the tectonic plates move up down or move away from each other, You also need to learn what to do when the earthquake so u cover ur neck and head because they are most important things to cover and u You also have to go under a strong/solid platform we’re done with earthquakes so we can move on to volcano so what can I remember is that if earthquakes can start volcanoes erupt and I’m gonna try to say what I can remember is that volcano is made out from crater but I don’t remember rest of it oh and the lil smoke/clouds are like coming out of the volcano so I think I gave u enough facts to learn have fun reading it =)