Answer: tsunamis

AnswerCrossword Clue
TSUNAMISWaves to fear
TSUNAMISScary waves
TSUNAMISSeismic sea waves
TSUNAMISFast-moving waves
TSUNAMISBig waves
TSUNAMISDevastating waves
TSUNAMISBig waves miss tuna at sea (8)
TSUNAMISCap is worn by star for big waves (8)
TSUNAMISWaves with long wavelengths?
TSUNAMISRing of Fire perils
TSUNAMISGreat swells
TSUNAMISHuge waves
TSUNAMISTidal waves
TSUNAMISRing of Fire dangers
tsunamisTSUNAMI, a huge ocean wave
tsunamisunusually large sea wave produced by a seaquake or undersea volcanic eruption