EntityQ1053146· pop 14· linked from 54 articlesshadow zoneSign in to savearea not reached by seismic waves from an earthquakeConnectionsrefractionEntityseismometerEntityhypocenterEntityseismic waveEntitySnell's lawEntityprimary waveEntitysecondary waveEntityEarthConceptearthquakeEntityInternational Standard Book NumberEntityvelocityEntitymass densityEntityMount EtnaEntitydigital object identifierEntitymagmaEntityInternational Standard Serial NumberEntityseismologyEntityreflectionEntityfaultEntityOCLC, Inc.EntityCategoriesSeismology