No Warning for 2004 Parkfield Quake
After spending the last year pouring over massive piles of research data collected from the Parkfield Experiment, researchers with the USGS have concluded that there was no warning or precursor that would have predicted the M6.0 event that happened on September 28, 2004.
“Parkfield was one of the most promising sites for our research, based on the history of similar earthquakes that struck in 1934 and 1966 with significant foreshocks that were clear precursors of those events,” he said. “But when the quake occurred last year, we were all surprised when there were no foreshocks at all, and no other precursors that could give us a clear and unambiguous signal of the fault’s behavior.
“We were looking. We had the right instruments in the right place at the right time, but there wasn’t a signal.”
Similar Posts on Geology News:
- SAFOD Insights into the “Earthquake Machine”
- Possible Cascadia and San Andreas fault link
- San Andreas Fault Observatory at Depth
- Sichuan Quake Ruptured in 2 Stages
- San Andreas Fault Mysteries Begin to Unravel