One attempt at predicting an earthquake took place during the latter part of the twentieth century in the town of Parkfield in California. This project, under the joint leadership of Stanford University and the USGS, will directly reveal, for the first time, the physical and chemical processes controlling earthquake generation on a seismically active fault. Parkfield lies along the San Andreas Fault, one of the longest and most active faults in the United States, which appears in the town as a seasonally dry creek bed. As a result, the USGS and the California Geological Survey (then the Division of Mines and Geology) placed instruments in the ground at Parkfield to seek methods for making short-term predictions of earthquakes based on precursory events in the preceding hours or days. Data are also available to view in real time and to download. It has been hypothesized that aseismic creep at Hollister is also due to the presence of serpentinite. Creation of the most complete active fault observatory in the world. USArray consists of a large transportable broadband seismic array, augmented by smaller seismic arrays and coordinated with the USGS Advanced National Seismic System. The goal of SAFOD is to drill a hole nearly 2.5 miles (4 kilometers) into the Earth's crust, across the San Andreas Fault. On this basis, the risk of an earthquake is lowest immediately after an event and increases with time. This was known as the Parkfield Earthquake Predictionand the P… Fact Sheet The USGS and the National Science Foundation plan to expand the Parkfield Experiment by drilling a deep borehole and installing instruments at the actual depths where earthquakes initiate, creating a San Andreas Fault Observatory at Depth. All these Parkfield earthquakes have struck in the same area-historical seismograms show that at least the 1934 and 1966 shocks initiated at the same point on the fault. Use, Smithsonian To achieve those goals, scientists develop, install, and operate real-time monitoring systems for seismic activity and for various physical and chemical parameters in the rocks, soil, and ground water. Parkfield is the most closely observed earthquake zone in the world. Based upon a known series of earthquakes, the experiment attempted to predict a ‘window’ during which the next … Serpentinite can transform into talc, a very soft mineral, thus facilitating easy slippage of plates. In theory (and many assumptions have to be made about the rate of strain accumulation, among other things), such a pattern would be expected to produce sequences of earthquakes along a fault segment which are broadly the same in magnitude and in other characteristics and which occur with a relatively even frequency – as at Parkfield. Studies have examined detailed geologic, seismic, electromagnetic, and geodetic observations and demonstrate a range of scientific progress. The fault is part of an active transform fault zone which marks the boundary between the North American tectonic plate, which is moving roughly south-westwards at a rate of around 23mm each year, and the Pacific plate, which is moving approximately north-eastwards at around 79mm each year (This Dynamic Planet map). This work is part of the National Earthquake Hazard Reduction Programs ongoing efforts to protect peoples lives and property from the earthquakes that are inevitable in California and elsewhere in the United States. Tribute to the memory of Yokuts and other early settlers who lived in the Cholame area. Though the researchers working on the Parkfield Earthquake Prediction Experiment did not manage to predict the accurate time and location of the seismic event, the results of the study were valuable for the development of the geological instrumentation patterns and exploration … Thus, the hazard remains high and the occurrence of another earthquake seems certain.