Basically two ways. Intrusive igneous rock is formed when magma cools and solidifies beneath the surface of the earth. These rocks are also called plutonic rocks.
Hurricane Irma is the strongest Atlantic basin hurricane ever recorded outside the Gulf of Mexico and the Caribbean Sea. It lasted as a hurricane from August 31 until September 11. The storm, which stretched 650 miles from east to west, affected at least nine US states, turning streets into rivers, ripping down power lines, uprooting trees and cutting off coastal communities.
While Irma is grabbing all of the attention, two other hurricanes are spinning in the Atlantic basin: Tropical Storm Jose was upgraded to a hurricane late Wednesday afternoon. Positioned far out in the eastern Atlantic Ocean, the storm was rapidly gaining strength and was forecast to become a major Category 3 storm by Friday.