Pier 80 transformed this weekend — not into a "Game of Thrones" pop-up or headquarters for a yacht \-racing team — but rather the concrete grounds for San Francisco's largest electronic music event, Portola Music Festival.

For the last two years, Portola Music Festival has presented electronic dance music’s biggest acts along San Francisco’s waterfront for tens of thousands of fans. It has also irritated many of its neighbors in the city and the East Bay whose homes have been literally shaken by the outdoor event’s vibrations.