Earth, environmental and planetary sciences' Ralph Harvey explains the frequency of meteors

Another meteor is spotted in the U.S. It's the third sighting in a week. 

USA Today: Ralph Harvey, a professor in the Department of Earth, Environmental and Planetary Sciences at the College of Arts and Sciences, explained that meteors entering Earth’s atmosphere are common worldwide, likely occurring several times daily, but are rarely seen over populated areas. The recent fireball in California, Nevada, and Arizona was the third U.S. sighting in a week, ahead of the April Lyrid shower.