An explosion struck a Shell gas station in the Mission District on Monday afternoon, rocking nearby homes and sending a thick, black plume of smoke across the neighborhood.
Several dozen firefighters were on the scene at 16th and Guerrero streets alongside at least nine department vehicles, including six fire trucks. San Francisco Fire Chief Dean Crispen said an adjacent building was evacuated, and that there were no reported injuries.
Crispen said that an excavator at the gas station, which has been the site of construction work, may have scraped a gas tank, igniting leaked fuel and sparking a blaze…