S51C-0170 0800h
The Parkfield Earthquake: A Late Breaking Section
LATE BREAKING SESSION: PAPERS CONTRIBUTED TO THIS SESSION WERE ACCEPTED AS LATE BREAKING AND WILL BE PUBLISHED IN A LATER, SUPPLEMENTAL VOLUME. The Parkfield section of the San Andreas fault in central California was the site of 6 large earthquakes, in the years 1857, 1881, 1901, 1922, 1934, and 1966, with the latter 5 events approximately magnitude 6. This pattern of earthquakes has led to an earthquake prediction, and intensive geophysical and geological monitoring and modeling of the San Andreas has been conducted over the past 3 decades, in anticipation of a future, similar-size event on >this active stretch of the San Andreas fault. On September 28, 2004 this expected M6 earthquake occurred. This section of the San Andreas fault is the most densely instrumented fault site in the world, including instrumentation from both the Parkfield Experiment and SAFOD, and a wealth of observations have been collected for the September earthquake. We welcome contributions using a variety of observations of the 2004 earthquake and its postseismic effects.