Earthquake Glossary - directivity

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  • directivity

    Directivity is an effect of a fault rupturing whereby earthquake ground motion in the direction of rupture propagation is more severe than that in other directions from the earthquake source.

    Directivity Flash Animation Directivity Flash Animation


    directivity

    This ShakeMap of the January 17, 1994 M6.7 Northridge earthquake shaking shows the result of rupture directivity toward the north.