ותגעש [וַיִּתְגָּעַ֤שׁ] וַתִּרְעַשׁ֙ הָאָ֔רֶץ מוֹסְד֥וֹת הַשָּׁמַ֖יִם יִרְגָּ֑זוּ וַיִּֽתְגָּעֲשׁ֖וּ כִּֽי־חָ֥רָה לֽוֹ׃
Then the earth did shake and quake, the foundations of heaven did tremble; they were shaken, because He was wroth.
Read midrashic interpretation of II Samuel 22:8: and classical rabbinic exegesis.