Brihat Samhita
अनिलो अनिलेन निहतः क्षितौ पतन्सस्वनं करोत्य् अन्ये । के चित्त्वदृष्टकारितं इदं अन्ये प्राहुराचार्याः ॥ ३२-०२ ॥
According to some earthquake is caused by the violent collision of winds and their striking the Earth in consequence, and according to others the cause is some invisible and unknown agency.
english translation
anilo anilena nihataH kSitau patansasvanaM karoty anye । ke cittvadRSTakAritaM idaM anye prAhurAcAryAH ॥ 32-02 ॥
hk transliteration by Sanscript