If they're knowledgeable, they can at least discuss it. With the click of a mouse, Turner says, homeowners can view the map. It matches earlier city maps identifying hazard zones and even includes a few new areas. In addition to the Marina district, liquefaction areas in San Francisco include Ocean Beach, North Beach and South of Market. Twin Peaks is a major landslide area.
City officials say the effects of both can be spotted easily throughout the city.
Residents of several buildings South of Market now have to walk down stairs to go inside houses and garages that were at street level before Loma Prieta. Another very visible area is above Laguna Honda lake. Houses were built atop sand dunes there on a hillside overlooking the lake. The houses started to crack and tip a little. The street had cracks and the telephone lines got tight.