Bay Area residents are constantly reminded that it’s not a question of if, but when, the next major earthquake strikes the region.

With that looming inevitability in mind, a group of transit experts will meet Tuesday to discuss how public transportation agencies should respond to a major catastrophe. The panel, organized by SPUR, a local think-tank, will focus on how agencies like BART and Muni can operate when infrastructure networks become damaged.

The meeting is scheduled to take place on Tuesday from 12:30 to 1:30 p.m. at SPUR’s headquarters on 654 Mission St. It’s free for SPUR members and $5 for the rest of the public.