Earthquake/volcano

a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes.

a fault on which the two blocks slide past one another.

a dip-slip fault in which the block above the fault has moved downward relative to the block below.

the block above the fault moves up relative to the block below the fault.

seismic body waves meaning that they travel through the Earth’s interior.

seismic body waves meaning they travel through the Earth’s interior.

a wave is a propagating dynamic disturbance of one or more quantities.

a point at which rays of light, heat, or other radiation meet after being refracted or reflected

quantitative measure of an earthquake’s magnitude (size)

If a lot of gas is trapped within magma, pressure will build and build until eventually the magma erupts explosively out of the volcano.

generally occur when magma is thin and flows easily.

a small volcanic island in Indonesia between Java and Sumatra

a volcanic center that has had an eruption of magnitude 8 on the Volcano Explosivity Index

A fault in California where the North American and the Pacific tectonic plates meet and slide past each other.

a continuous range of underwater volcanoes that wraps around the globe like seams on a baseball

usually constructed almost entirely of basaltic and/or andesitic lava flows which were very fluid when erupted.

built from particles and blobs of congealed lava ejected from a single vent.

large volcanoes (many thousands of feet or meters tall) generally composed of lava flows, pyroclastic deposits, and mudflow (lahar) deposits, as well as lava domes.

a large plume of hot mantle material rising from deep within the Earth.

active volcano that rises above the Bay of Naples on the plain of Campania in southern Italy.