Rubuta ci gaba ga wannan sakin layi - Guguwar Galveston ta 1900
, bala'in bala'i mafi muni da ya afkawa Amurka, ya kai kololuwar da ta yi daidai da guguwar zamani mai lamba 4. Sauran misalai na guguwa da suka kai matsayi na 4 da kuma yin ƙasa a wannan ƙarfin sun haɗa da: Flora (1963), Cleo (1964), Betsy (1965), Carmen (1974), Frederic (1979), Joan (1988), Iniki (1992), Luis (1995), Iris (2001), Charley (2004), Dennis (2005), Gustav (2008), Ike (2008), Joaquin (2015), Harvey (2017), Laura (2020), Eta (2020), Iota (2020) da Ida (2021).