Complex sentence: The Oklahoma City metropolitan area is one of the most tornado-prone major cities in the world, with about 150 tornadoes striking within the city limits since 1890, including eight EF4s and one EF5.
Split into simpler sentences: The Oklahoma City metropolitan area is one of the most tornado-prone major cities in the world. More than 150 tornadoes have stricken within the city limits since 1890, including eight EF4s and one EF5.