Extrusive igneous rocks are formed on the surface of the earth. These rocks are formed as a result of a volcanic eruption. Most have a fine grained texture made of small crystals due to rapid cooling. However, some of the lava cools so quickly that no crystals have time to form. An example of this type of rock is obsidian, commonly called black glass or volcanic glass.
Hurricane Sandy (unofficially known as Superstorm Sandy) was the deadliest and most destructive hurricane of the 2012 Atlantic hurricane season, and the second-costliest hurricane in United States history.
In an era of extreme weather, we have to keep the risk of weather disasters in the front of our minds, author says. Superstorm Sandy batters Atlantic City, New Jersey, on October 29, 2012, as it churns up the East Coast. The final death toll was 147. Next week marks the second anniversary of one of the deadliest hurricanes in U.S history. Superstorm Sandy killed 147 people, left millions without power, and smashed records: lowest barometric pressure of a hurricane to make landfall north of Cape Hatteras, highest storm surge, second costliest hurricane, after Katrina.