3. San Francisco Bay Area/Hayward Fault (Magnitude 7.4)

The last large events to occur on this fault were in 1836 and
1868. Should a major earthquake occur, severe ground shaking and
liquefaction is expected to cause damage throughout the entire
circum-bay area nearly as severe as that resulting from a 1906-type
earthquake on the San Andreas fault. This earthquake would be of
particular concern because of the many dams located along or near the
fault.


4. Los Angeles/Newport-Inglewood Fault (Magnitude 7.5)

This earthquake would be a serious threat to the nearby,
densely-populated areas of Los Angeles. Shaking would cause extensive
structural damage throughout the Los Angeles Basin and liquefaction
near the coast would add still more destruction.


5. San Diego Area/Rose Canyon Fault (Magnitude 7.0)

This fault--a segment of an active zone of faults extending from
the Newport-Inglewood fault to Northern Mexico--would present the
greatest earthquake risk to the San Diego area. Severe damage due to
shaking and liquefaction could be expected in the coastal areas.
Because of unstable sea-bed sediments in the offshore area, local
tsunamis (tidal waves) are possible.