אֶ֤רֶץ רָעָ֨שָׁה ׀ אַף־שָׁמַ֣יִם נָטְפוּ֮ מִפְּנֵ֪י אֱלֹ֫הִ֥ים זֶ֥ה סִינַ֑י מִפְּנֵ֥י אֱ֝לֹהִ֗ים אֱלֹהֵ֥י יִשְׂרָאֵֽל׃
The earth trembled, the heavens also dropped at the presence of God; Even yon Sinai trembled at the presence of God, the God of Israel.
Rashi on Psalms
this is Sinai That too quaked because of the Lord God of Israel.