TORRANCE, Calif. (KTLA) – Residents near an oil refinery in California heard a loud explosion and felt the ground shake on Wednesday morning.
Authorities say air quality readings were within the normal range and an air quality warning has not been issued for the area.
Schools were told to shelter in place and several streets were shut down immediately after the explosion.
At this time, it is unclear what exactly caused the explosion.
Fortunately, all employees are accounted for and two suffered only minor injuries.
The refinery covers roughly 750 acres, according to Exxon Mobil Corporation. It processes an average of 155,000 barrels of crude oil per day and produces 1.8 million gallons of gasoline each year.