I can’t find solid information about the bright flash we saw in the night sky last night

We were watching TV when the living room window lit up at about 9:15 pm. That window faces southwest. We’re located immediately east of San Diego.

At first I thought the flash was an explosion, but when the seconds passed and we didn’t feel a shock, I ruled that out.

I saw some chatter on social media and skimpy articles on the news, including this on NBC San Diego:

Flashing Lights Seen in Sky Across San Diego.

Dr. Ed Krupp, of Los Angeles’ Griffith Observatory, said the light might have been an exploding bolide — an extremely bright meteor that unleashes a flash as it explodes in Earth’s atmosphere.