A rare and powerful form of lightning struck Tulsa, Oklahoma, during a storm and was felt by residents across much of the city, leaving some wondering what they just experienced. The “superbolt” was ...

A bolt of lightning that arced across the sky from Texas to Kansas in the fall of 2017 has officially smashed the record for the world's longest. During a major thunderstorm in October 2017, the ...

Experts say vertical ocean floor movement determines tsunami size. When a magnitude 8.8 earthquake rocked Russia's Kamchatka Peninsula on Tuesday, officials warned that damaging tsunami waves could ...