Mount St. Helens, an active stratovolcano, has an elevation of 8,363 feet. It is located in Skamania County, Wash., in the Pacific Northwest region of the United States.
From March 16 to May 17, 1980, Mount St. Helens experienced a series of small earthquakes, which culminated in a catastrophic eruption on May 18. At the time, it was the deadliest and most economically destructive volcanic event in the history of the United States.
The eruption impacted the size of the mountain, creating a crater 1.2 miles across east to west, 1.8 miles across north to south, and 2,084 feet deep. Prior to the eruption, it stood at 9,677 feet in elevation; it lost 1,314 feet in the eruption. The mountain lost a volume of 0.67 cubic miles.Learn More
If the Yellowstone supervolcano erupts, it would blanket the entire United Sates in ash, disrupt crop production, cause traffic accidents, cause respiratory problems and result in climate change. Ash alone has serious side effects, such as collapsing buildings.Full Answer >
Major cities located in the southwestern region of the continental United States include Denver, Colorado; Phoenix, Arizona; and Las Vegas, Nevada. Other cities include San Francisco, Los Angeles and Oakland, California; Santa Fe, New Mexico; and Salt Lake City, Utah.Full Answer >
There are a lot of great places to live in Northern California. The Bay Area is the most densely populated area in Northern California and includes the largest and most populous cities, including San Jose, San Francisco and Sacramento.Full Answer >
A total of five states in the US are home to cities named London. Visit London when you are in Kentucky, Ohio, Arkansas, Texas or West Virginia.Full Answer >