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  remains deadliest natural disaster in North American history. 6,000–12,000 fatality
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  California Conflagration followed quake; fatalities estimated 3,000–6,000 deaths
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  Lower number for single 3-state tornado; higher for 5-state outbreak
 695–727 deaths
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  4,078+ believed dead total. About 2,500 died in Florida and 500 in the U.S. possession of Puerto Rico.
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  took place in late January and February 1937. With damage stretching from Pittsburgh to Cairo, Illinois,
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  a large extratropical cyclone which moved through the Eastern United States, causing significant winds, heavy rains east of the Appalachians, and blizzard conditions along the western slopes of the mountain chain.
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  2,290 to 6,600 killed and $3,500,000,000 (2005) in damage worldwide. 61 killed in Hilo, Hawaii. $500,000 in U.S. property damage
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  Average rainfall over area of 60 mi² measured at 10-15 inches (380 mm), over 6 hours in middle of night June 9–10, 1972.
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  Damage figure for U.S. only. At least 111 total deaths, with 37 in the continental U.S. and 12 in the U.S. possession of Puerto Rico.
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  Large fires burnt out of control across southern California, fueled by unusually strong Santa Ana Winds; worst around San Diego; caused evacuation of over one million people. Most fires accidental; some suspected arson.