Does anyone know what natural disasters have happened in America? Say something influential, thank you.

Ten most serious natural disasters in the United States in the past century: 1, Hurricane Galveston (1September 8, 900)1September 8, 900. On the morning of September 8, 2000, a category 4 hurricane landed in Galveston at a speed of 135 mph. Only 18 hours, the buildings in the city are in Galveston. This is the most serious and destructive hurricane disaster in American history. 2. Hurricane Katrina (August 29, 2005) On August 29, 2005, Hurricane Katrina in the Atlantic Ocean hit southern Florida as the number one hurricane and brought the most painful economic disaster in American history. Hurricane Katrina reached a speed of 1.25 miles per hour off the coast of Louisiana. The hurricane destroyed the flood levees in New Orleans, and 80% of the urban area of New Orleans was submerged by seawater, with the death toll reaching 1836. Resulting in $654.38+0.25 billion. 3. Sandstorm (65438+early 1930s) 1968+early 1930s, the Great Plains of America was once a paradise for farmers. World War I increased the demand for wheat, and a large number of immigrants came to the south of the Great Plains to cultivate green soil. However, due to large-scale agricultural reclamation, the original land vegetation structure was destroyed. Grassroots and roots in the Great Plains used to consolidate moist soil, but after agricultural destruction, the government can only pay for vegetation reconstruction in arid climate. More than ten years of land reclamation destruction have gradually turned the originally green soil into soft topsoil and dust. As the storm blows to the east, the air is mixed with a lot of yellow dust to form a sandstorm, which makes the sky on the Atlantic coast dim and colorless. According to statistics, a large area of vegetation and crops have been deserted, one-third of farmers need government relief, and about 500 thousand local residents have left this land. 4. San Francisco Fire and Earthquake (1April 906 18)1April 90618 in the morning, a scene that lasted less than one minute shocked the residents of San Francisco, and then the natural gas and water supply system were destroyed by the earthquake, resulting in a four-day disaster in San Francisco. The 7.7-7.9 earthquake not only destroyed the natural gas pipeline and caused a large-scale fire, but also destroyed the water supply system, making it impossible for the fire department to put out the flames quickly. When the fire went out, more than 500 buildings in San Francisco were swallowed up by the fire, 3,000 people were killed in the disaster and about 225,000 people were homeless. 5. Hurricane okey chobe (1928 September16) In September of 0928, the weather forecast predicted that there would be a strong hurricane in Okeychobe Lake, and the government advised local residents to evacuate the area. However, at the expected time of the hurricane, the hurricane did not land, so many residents who had evacuated their hometown relaxed their minds and returned to Lake Okejobe again. /kloc-On the night of September, 2006, the hurricane hit Lake Okikobi at a speed of140mph. The surge caused by the hurricane destroyed the small dam at the southern end of Okikobi Lake, causing a week-long flood, killing at least 2,500 people. 6. 1980 heat wave (summer of 1980) 1980 high temperature weather is the most serious climate disaster in American history. The ridge of high pressure (the extension of relatively high atmospheric pressure) crosses the central and southern parts of the United States, making the summer temperature in this area reach 90 degrees Fahrenheit. Kansas has maintained such a high temperature from June to September. The temperature in Dallas-Fort Worth, Texas has been above 100 degrees Fahrenheit for 69 days, and the highest temperature reached 1 17 degrees Fahrenheit on June 26th and 27th. According to statistics, due to drought and high temperature, agricultural economic losses amounted to $48 billion, and 65,438+000,000 people died of diseases caused by high temperature. 7. 1988 heat wave (summer of 1988) Due to the heat wave in the summer of the United States 1988, due to the dry climate, the crop yield in the United States was greatly reduced in one year, resulting in economic losses of more than $61000 billion. The total rainfall in the Great Plains from April to June is even less than that in the dust storm area. Due to the hot and dry weather, wildfires often occur in Yellowstone National Park and Mount Rosemoor National Memorial Park. In hot weather, 5000- 10000 people in the United States have health complications. 8. Johnston Flood (May 3 1, 0889) At the end of June 19, the small industrial zone in Johnston, Pennsylvania is famous for producing high-quality stainless steel. However, the industrial zone was completely destroyed in a flood on May 3 1 0889, and the old Nancha dam on the mountain was repaired. More than 20 million tons of water and debris invaded Johnston with niagara river. In this disaster, 65,438+0,600 houses were destroyed and 2,209 people died. 9. The Pisti fire in Pisti, Wisconsin (187 10 10 8) was the worst fire in American history. Pisti was originally a very dry city. With the help of a strong storm, the fire crossed the Pistig River and headed for the city. According to statistics, the fire damaged 12 towns, and 1200 people died. 10, Tri-State Tornado (1925 March 18) became the deadliest disaster in the heart of the United States in three and a half hours, and its attack paths included Illinois, Indiana and Missouri. The tornado destroyed more than15,000 houses, and nearly 700 people died, 6 13 of whom were from Illinois. After this disaster, the American government realized the harm of tornado, and then the meteorological forecasting department began to pay close attention to and build a tornado early warning system, thus saving many lives.

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