Split Screen of San Francisco's Market Street, Before and After the Great Quake 11.73K Matt Cherette 06/23/10 12:01PM Filed to: The great quake The great quake Disasters California San Francisco Market Street Video tweet Jalopnik io9 TV In this mesmerizing new video by Justin Johnson, a split screen tracking shot down Market Street in San Francisco shows what things looked like both before and after the Great Earthquake of 1906—putting the damage into grim perspective.[YouTube]