Overview

• Firefighters confined the blaze to a section of the El Segundo refinery after a powerful explosion late Thursday.
• Shelter-in-place guidance for parts of nearby Manhattan Beach was lifted by Friday, with no evacuations or injuries reported.
• Chevron confirmed emergency flaring during the incident as residents reported feeling a strong blast and seeing flames visible for miles.
• Air-quality monitors showed mostly good readings with brief particle spikes to the east, and LAX operations were unaffected.
• The cause remains unknown as state and local probes proceed; authorities are assessing operational impacts at one of the West Coast’s largest refineries, with one report pointing to an Isomax unit.