Ramba uchinyora ndima iyi - Mamwe matsunami nemadutu achangobva kuitika, akadai sedutu reTohoku
muJapan (2011) uye Hurricane Katrina muUnited States (2005), yakakonzera kukanganisa kwakanyanya kumadhaka emabhiriji emhenderekedzo yegungwa nezvivakwa. Kudyidzana kwemasaisai epamusoro nemabhiriji emumahombekombe idambudziko rakaoma kunzwisisa, rinosanganisira kudyidzana kwechimiro chemvura, zvinwiwa zvine zvikamu zvakawanda, kuputsika kwemasaisai, uye kuwedzeredza. Izvi zviri pachena mukuwedzera kumatambudziko ane chokuita nokuongorora kwegadziriro. Ertekin nevadzidzi vake vakadzidza nezvezvinokonzera kukundikana kwebhiriji uye nzira dzingashandiswa kuderedza dambudziko racho. Vakagadzira mienzaniso yaishandiswa kuongorora kukanganisika kwemabhiriji emumhenderekedzo yegungwa muU.S.A. kutsunami namadutu uye mafungu.