Part 1, Northern Segment: Berkeley and Oakland
A broken sidewalk, a bent streamcourse, a cracked stairway, a threatened templethe signs of the Hayward fault are scattered throughout the cities of Berkeley and Oakland.
This little stream curves rightward as it crosses the fault trace. View west. Dozens of other small watercourses do the same along the length of the fault. The building beyond is a monastery, built since the 1868 quake. All photos (c) 2001 or 2003 Andrew Alden, licensed to About.com.
Stonewall Road was laid down on top of the fault, and creep is slowly wrenching the sidewalk apart. View is directly up the fault trace. Just beyond is a brick house, then buildings of the University of California's Berkeley campus. Several of these structures are closed, but others remain occupied.
A sidewalk crossing the fault is disrupted near Fire Memorial Park, about a kilometer south of Stonewall Road. View west. Just north of here the main water tunnel serving the East Bay crosses the fault.
View south from Hiller Drive in north Oakland. State route 13, carrying heavy traffic to and from points south, curves into the valley of the fault trace toward the notch at upper left. In the hidden gorge below are route 24, a major commute road, and the Bay Area Rapid Transit commuter train line, running west across the fault. A large electrical station lies on the right edge next to Lake Temescal, a former sag pond. These hills cradle the intimate upper-income neighborhoods of Montclair, Piedmont, and Rockridge. Much of the area burned in the great 1991 fire.
An elegant bit of brickwork on the old Montclair fire station, built on the fault trace, is being pulled apart by creep. View south. A major quake here, like the 1868 event, would likely trap the fire engines inside. The building was abandoned only a few years ago; it may continue existence as a firefighting museum.
View downfault at Lincoln Avenue. Creep mashes and breaks the asphalt curb in the foreground. Across Lincoln Avenue is the Stake Center, a major meeting facility for the LDS (Mormon) Church. The Oakland Temple itself is beyond and a little to the right. Being off the fault trace, the temple is not threatened by creep, but the shaking of a major quake could do it serious damage. The slope of the hillside changes direction beyond the trees, from rightward to leftward, as the fault crosses Lincoln Avenue. This topographic feature, called a scissors point, is evidence of fault movement.