Ashley L., TiAni T., Joe O., Kyle V.

Hayward Fault Zone

California

North American

& Pacific Plates

Major cities:

Richmond,

Berkeley,

Oakland, San

Leanardo,

Hayward and

Fremont

Millions of

people live on or

near the fault

Location

The Hayward Fault

merges with the

Calaveras Fault east

of San Jose

Pacific Plate is

moving northwest,

N. American Plate is

moving southeast

The Hayward Fault

is 40 miles long and

about 8 miles deep

and trends along the

east side of San

Francisco Bay

The fault is about

200 years old

Transform boundary

Earthquakes

Intense folding of

rocks in the

locked sections

began forming

about 12 million

years ago as part

of the North

American/Pacific

plate boundary

The Hayward

Fault is in nature,

on streets , it

cracked many

sidewalks and

curbs.

Features

-1868-

HaywardEarthquak

e

The Hayward

earthquake was the

last large

earthquake to

occur on the

Hayward fault zone

in the San

Francisco bay area.

It has been

estimated to be

around a 6.8-7 on

the Richter scale.

30 casualties were

reported.

Major Tectonic Events

This is a picture of the Alamada courthouse in San Leandro California after the Hayward earthquake.

-fault creep-

The Hayward

fault creeps at

about 0.5 cm per

year. Fault

creeping affects

the buildings on

the fault, as it

damages the

foundation and

cracks the floors

of structures on

the fault.

Impact of the Hayward Fault Zone

This is a curb that has been cracked due to fault creeping on the Hayward fault.

http://en.wikipedia.org/wiki/Hayward_Fault_Zone

http://seismo.berkeley.edu/blog/seismoblog.php/2008/10/21/today-in-earthquake-history-hayward-1868

http://earthquake.usgs.gov/regional/nca/haywardfault/

Resources