Root ز ل ز ل(z l z l) has 5 unique word forms and appears 6 times in the Quran.

English gloss Earthquake, Shake Violently

Word Translation Occurrences
وَزُلۡزِلُواْ and shaken, and they were shaken, and shaken, and they were shaken 4
زِلۡزَالٗا (with a) shake, (with a) shake 2
زِلۡزَالَهَا (with) its earthquake, (with) its earthquake 2
زَلۡزَلَةَ (the) convulsion, (the) convulsion 2
زُلۡزِلَتِ is shaken, is shaken 2