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