Columbia subject headings:
Faults (Geology)--California.
Hayward Fault (Calif.)
San Andreas Fault (Calif.)
Harvard subject headings:
Faults (Geology)--California.
Hayward Fault (Calif.)
San Andreas Fault (Calif.)
Princeton subject headings:
Faults (Geology)--California.
Hayward Fault (Calif.)
San Andreas Fault (Calif.)