The causes of tectonic hazards Typeit

Earthquakes and volcanoes typically occur along plate . Some are divergent. Here, plates are being forced . Shallow-focus earthquakes can occur as the move. Magma rises to fill the gaps between plates. This forms . Some boundaries are convergent. Here, plates are pushing into each other. These boundaries are characterised by -focus earthquakes. When one oceanic plate and one continental plate collide in this way, the plate melts and magma rises to the surface. It forms volcanoes such as Soufrière Hills, Montserrat. Where powerful earthquakes cause displacement of the seabed, or a volcano explodes and causes a landslide into the sea, a powerful wave called a  is generated. Out at sea, they are just a ripple, but they can travel several kilometres inland, because of their long wavelengths. Famous examples include the 2004 Boxing Day Tsunami in the  Ocean, but most tsunamis are generated in the  Ocean because of the Ring of Fire.