The Hayward fault in Fremont: how it's moving, how we measure it, and why

Dr. Gareth Funning,  Associate Professor, University of California, Riverside

Contact  Joyce Blueford for more information (blueford@msnucleus.org)   

Dr. Funning and the Math Science Nucleus will be working together to take pictures of the creep along the Hayward Fault in Fremont (about 5-9 mm per year).  As part of the grant MSN has received cameras and other equipment.  For three days  (July 24, 26,27), Katie York will be going out with high school students who would take pictures at 3 sites  (Niles, Central Park, and Wiebel area).  Dr. Funning will be using the data to see if satellite images can detect that detail.  If you are interested please contact Katie York (york@msnucleus.org).  Attending the talk would be an excellent start to find out what is means to be a seismologist.

Come listen to his lecture:  
Where:  Tule Ponds at Tyson Lagoon, 1999 Walnut Ave
When: July 23, 2010, Friday
Time:   7-8 pm lecture;  8-9 tour

FREE  - Why lecture at Tule Ponds?  The Hayward Fault created Tule Ponds at Tyson Lagoon and we thought it fitting to have a talk on the Fault.  Come early and walk around the area if you cannot stay later. 
Limited to 35 people .(to register write an email to Laurey Hemenway (laurey@msnucleus.org)

PUBLIC LECTURE (NOT APPROPRIATE FOR LITTLE ONES)

Monitoring locations

Don't forget to wear sunscreen, a hat, bring water and a snack and wear comfortable shoes.

Saturday
July 24

9am-12 pm

Meet at Tule Ponds at Tyson Lagoon 1999 Walnut Ave
Monday
July 26

9am-12pm

Meet at Agua Caliente Park off Grimmer Blvd at Gardenia
Tuesday
July 27

9am-12 pm

Meet at the small park on School St. in Niles.  It is next to Niles Elementary school.
ABSTRACT OF TALK
The Hayward fault, running through the East Bay from Pinole to Fremont, is one of a handful of faults in the world that ‘creeps’ at
the surface. Fault creep, where a fault moves steadily at the surface (instead of staying locked by friction, like most faults), has many
observable effects in the East Bay – it separates curbs and paving slabs, cracks asphalt and walls, and damages buildings, most notably
the Berkeley football stadium. The rate of movement, around 5 mm per year, is enough to visibly move objects within a year or two.

Geophysicists are interested in this unusual behavior for a couple of reasons. First, we want to explain why some faults creep and others do
not – why it happens on the Hayward fault in Fremont, and not (for example) on the San Andreas fault in Palo Alto. Second, and more
importantly, knowing where and how fast the Hayward fault creeps allows us to make estimates of where it is not creeping. These
‘locked’ areas are accumulating strain for a future earthquake. We know that there was a large earthquake on the Hayward fault in 1868,
and our best estimates suggest that there is a high probability of a repeat earthquake in the next few decades. Understanding in advance
where this earthquake will happen will allow citizens, the public utilities and city governments to prepare for the worst.

In this talk, I will show examples of creep, and explain how geophysicists measure it, using radar satellites, expensive
high-precision GPS and other survey techniques. I will also show how anybody who wants to could measure it, using a much-less-expensive
digital camera, a tape measure and a tripod.


Gareth Funning is an assistant professor at the University of California, Riverside, who moved to California from his native England
because there are earthquakes here.

For more information contact: 510-790-6284 or msn@msnucleus.org