Earth's crust ranges from 5 to 70 kilometers in thickness and serves as the planet's outermost layer. This thin shell represents less than one percent of Earth's total mass, yet it's the only layer we ...

Learn how seismic waves helped identify rare mantle earthquakes deep below Earth’s crust, offering new insight into the ...

Stanford researchers have created the first-ever global map of a rare earthquake type that occurs not in Earth's crust but in ...