Discover published sets by community

The rigid outer part of the earth, consisting of the crust and upper mantle.

The scientific theory that describes the large-scale motions of Earth's lithosphere.

The state of gravitational equilibrium between Earth's crust and mantle such that the crust floats at an elevation that depends on its thickness and density.

A supercontinent that existed during the late Paleozoic and early Mesozoic eras, formed about 300 million years ago and began to break apart about 175 million years ago.

A logarithmic scale that assigns a number to quantify the size of an earthquake, developed by Charles F. Richter.

The boundary between Earth's crust and the mantle, characterized by a sudden increase in the velocity of seismic waves.

The boundary between the Earth's metallic core and its silicate mantle, lying approximately 2,900 kilometers below the Earth's surface.

The region of space surrounding an astronomical body in which charged particles are controlled by that body's magnetic field.

Waves of energy that travel through the Earth's layers, and are a result of earthquakes, volcanic eruptions, magma movement, large landslides and large man-made explosions.