Earthquake Glossary - seismic gap

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  • seismic gap

    A seismic gap is a section of a fault that has produced earthquakes in the past but is now quiet. For some seismic gaps, no earthquakes have been observed historically, but it is believed that the fault segment is capable of producing earthquakes on some other basis, such as plate-motion information or strain measurements.


    seismic gap

    (From U.S. Geological Survey Circular 1045)