• زِلْزَال
• زِلْزَالهَا
• زَلْزَلَة
• زُلْزِلَتِ
• زُلْزِلُوا۟

Appears 4 times in the Quran.

1. 2:214 أَمْ حَسِبْتُمْ أَن تَدْخُلُوا۟ ٱلْجَنَّةَ وَلَمَّا يَأْتِكُم مَّثَلُ ٱلَّذِينَ خَلَوْا۟ مِن قَبْلِكُم مَّسَّتْهُمُ ٱلْبَأْسَآءُ وَٱلضَّرَّآءُ وَزُلْزِلُوا۟ حَتَّىٰ يَقُولَ ٱلرَّسُولُ وَٱلَّذِينَ ءَامَنُوا۟ مَعَهُۥ مَتَىٰ نَصْرُ ٱللَّهِ أَلَآ إِنَّ نَصْرَ ٱللَّهِ قَرِيبٌ

   Or do you think that you would enter the garden while yet the state of those who have passed away before you has not come upon you; distress and affliction befell them and they were shaken violently, so that the Messenger and those who believed with him said: When will the help of Allah come? Now surely the help of Allah is nigh!
   

2. 22:1 يَٰٓأَيُّهَا ٱلنَّاسُ ٱتَّقُوا۟ رَبَّكُمْ إِنَّ زَلْزَلَةَ ٱلسَّاعَةِ شَىْءٌ عَظِيمٌ

   O people! guard against (the punishment from) your Lord; surely the violence of the hour is a grievous thing.
   

3. 33:11 هُنَالِكَ ٱبْتُلِىَ ٱلْمُؤْمِنُونَ وَزُلْزِلُوا۟ زِلْزَالًا شَدِيدًا

   There the believers were tried and they were shaken with severe shaking.
   

4. 99:1 إِذَا زُلْزِلَتِ ٱلْأَرْضُ زِلْزَالَهَا

   When the earth is shaken with her (violent) shaking,