Atsunamiisaseriesofoceanwavescausedbylarge-scaledisturbancessuchasearthquakes,volcaniceruptions,orunderwaterlandslides.Theterm"tsunami"comesfromtheJapanesewords"tsu"(harbor)and"nami"(wave).KeyEnglishvocabularyrelatedtotsunamisincludes:-**Tsunami**:Themaintermforthesedestructivewaves.-**Seismicactivity**:Earthquakesthatoftentriggertsunamis.-**Tidalwave**:Anoutdatedtermsometimesmistakenlyusedfortsunamis.-**Run-up**:Themaximumheightatsunamireachesonshore.-**Inundation**:Thefloodingcausedbyatsunami.-**Warningsystem**:NetworkslikethePacificTsunamiWarningCenter(PTWC)thatdetectandalertabouttsunamis.-**Crestandtrough**:Thehighandlowpointsoftsunamiwaves.-**Backwash**:Theretreatofwaterbackintotheoceanafteratsunamihits.Understandingthesetermshelpsindiscussingtsunamiscience,safetymeasures,anddisasterresponse.
