زِلْزَالَهَا

زِلْزَالَهَا is a phrase (شِبْهُ الجُمْلَةِ) consisting of a possessed noun and a possessive noun compound

PhraseNoun / NounNoun Noun
شِبْهُ الجُمْلَةِمُضَافٌ وَ مُضَافٌ إِلَيْهِمُضَافٌ إِلَيْهِمُضَافٌ
PhrasePossessive compoundPossessive noun/ownerNoun possessed/owned
her shakingزِلْزَالَهَا=هَا+زِلْزَالَ
shaking of hershersshaking of
Surah/Below is the only verse in the holy Quran containing the possessive nominal compoundزِلْزَالَهَا
Verse
99-1When the earth is shaken with its shakingإِذَا زُلْزِلَتِ الْأَرْضُ زِلْزَالَهَا