Usually caused when underground rock suddenly breaks and there is rapid motion along a fault lines
Measured by the Hatachi Scale
When snow falls quickly down the side of a mountain
Pollution
Can be caused by humans or can occur due to lightening strikes and drought
Flash _______ & Urban _______
Develop from severe thunderstorms in warm, moist, unstable air along and ahead of cold fronts
Measured by the Richter Scale
Measured with the Saffir Simpson Scale
Approximately 80% of these happen inside the Pacific Ocean's "Ring of Fire"
Measured with the Fujita Scale
Usually caused by an underwater earthquake or volcanic eruption
Can be caused by hurricanes, prolonged rainfall, intense rainfall over a short time, dam failure
Acid Rain
Form over the ocean where the air is warm in the tropics & start as weaker storms (tropical storms)
Cause secondary succession (there could be multiple answers- choose what is left)