Seismogenic Zone

By Earthquake Hazards Program 2021 (approx.)

Diagram showing a blob shape with a D and an arrow pointing right and a labelled reupture. The height is labelled "W" and the length is "L." The top line is labelled "Surface" and the bottom line is labelled "Base of seismogenic zone"

Original Thumbnail Medium

Detailed Description

Moment = ? A D

? = shear modulus = 32 GPa in crust, 75 GPa in mantle

A = LW = area

D = average displacement during rupture

Sources/Usage