Atharvavedaparishishta 64.9.5

64.9.5

śakrāyudhaparīveṣavidyutśuṣkavirohaṇam | akasmād varṇavaikṛtyaṃ rasanaṃ daraṇaṃ kṣiteḥ ||

Rainbows, halos, lightning, the sprouting of dry wood, / sudden transformation of color, rumbling, and the cracking open of the earth;