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Earthquake Experts at UC Riverside


Earthquake Experts at UC Riverside

Geophysicists Study Electromagnetism of Earthquakes and Fault Activity

(September 30, 2004)

An automobile lies crushed under the third story of a San Francisco apartment building after the 1989 Loma Prieta earthquake.

An automobile lies crushed under the third story of a San Francisco apartment building after the 1989 Loma Prieta earthquake.

RIVERSIDE, Calif. — www.ucr.edu — Two University of California, Riverside geophysicists who study earthquake prediction and behavior can add depth to news reports following the 6.0 earthquake that struck the tiny central California coast town of Parkfield on Sept. 28.

Geophysicist Steven Park maintains a project at Parkfield where, since the quake, more than 500 aftershocks followed, the largest measuring magnitude 5.0 and 4.5 on the Richter Scale.

ELECTROMAGNETIC PRECURSORS TO EARTHQUAKES
Stephen Park
, professor of geophysics
Park is an internationally noted authority on electromagnetic phenomena associated with earthquakes. He has joint appointments at UC Riverside as a professor of geophysics and in the Institute of Geophysical and Planetary Physics. He leads a group of scientists from UC Riverside, UC Berkeley and Oregon State University in a monitoring experiment on the San Andreas fault in Parkfield, Calif. In the experiment, which began in 1988, the group has developed methods for searching for small electromagnetic signals that might indicate impending earthquakes.
Contact
Telephone: (951) 827-4501
Email: magneto@ucrmt.ucr.edu


PHYSICAL FORCES LEADING TO EARTHQUAKES
David Oglesby
, assistant professor of earth sciences
Oglesby develops computer models of the forces acting on faults that develop into fault ruptures and fault slippage, and the transmission of seismic waves from slipping faults. His modeling predicts the wave propagation and ground motion caused by different faults. He can answer how and why faults slip, causing earthquakes. His recent projects included developing ground motion forecasts for the Rose Canyon Fault in San Diego and computer models of earthquakes on segments of thrust faults.
Contact
Telephone: (951) 827-2036
Email: david.oglesby@ucr.edu

The University of California, Riverside (www.ucr.edu) is a doctoral research university, a living laboratory for groundbreaking exploration of issues critical to Inland Southern California, the state and communities around the world. Reflecting California's diverse culture, UCR's enrollment has exceeded 21,000 students. The campus opened a medical school in 2013 and has reached the heart of the Coachella Valley by way of the UCR Palm Desert Center. The campus has an annual statewide economic impact of more than $1 billion.

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