Contributed by Dale Smith Photos by Phil Garbutt. For the creeping section the model suggests a pattern of earthquakes no bigger than magnitude 6 or so, plus lots of creep. The steady creep along the fault results in relative displacement of the two parts of the stadium. The Hayward fault has a creep mechanism, where the surface shows signs of a steady movement while the tectonic plates are locked together deep below the surface of the earth. There, most of the fault between the surface and its base at around 15 kilometers depth turns out weak and slippery, and only a narrow band of rock in the middle of that range has enough friction to gather a lot of strain energy. Among other things, I talked about the fault's peculiar behavior called aseismic creep, in which the two sides of the fault move slowly past each other at just a few millimeters per year without the help of earthquakes. Monitoring Fault Creep on the Hayward Fault using Structure from Motion Jerlyn L. Swiatlowski, & Gareth J. Funning Submitted August 14, 2018, SCEC Contribution #8509, 2018 SCEC Annual Meeting Poster #117 Fault creep is an ongoing process that can be a problem for urban areas that lie along the fault … In October 2007, a magnitude 5.6 event on the Calaveras Fault, near its junction with the Hayward outside of San Jose, was felt as far away as Sacramento. Second, and more importantly, knowing where and how fast the Hayward fault creeps allows us to make estimates of where it is not creeping. When people learn about it, they often wonder if fault creep can defuse future earthquakes, or make them smaller. In my very second post, back in 2007, I suggested that we take over the name, and a couple years back I pointed out eight iconic places to see the Oakland fault in action. The last big earthquake along the Hayward Fault was in 1868. Hayward fault creeps with a rate of approximately 1cm/year. The Hayward fault (HF) in California exhibits large (M w 6.5–7.1) earthquakes with short recurrence times (161±65 yr), probably kept short by a 26%–78% aseismic release rate (including postseismic).Its interseismic release rate varies locally over time, as we infer from many decades of surface creep data. The Figures that follow show indications of the Hayward fault creep on a road in the City of Hayward. The Hayward, a major branch of the San Andreas fault system, exhibits creep along at least 68 km of its <100 km length (Fig.1). Although it is documented to undergo significant creep, with some creeping patches accommodating 50% or more of the long-term fault displacement, the fault also experiences moderate to large earthquakes (most recent M ~6.8 in 1868). The Hayward Fault Zone is a geologic fault zone capable of generating destructive earthquakes.This fault is about 74 mi (119 km) long, situated mainly along the western base of the hills on the east side of San Francisco Bay.It runs through densely populated areas, including Richmond, El Cerrito, Berkeley, Oakland, San Leandro, Castro Valley, Hayward, Union City, Fremont, and San Jose. The east end (the Sierra) bends upward and the middle (the Tulare basin) bends down. The result is that the southern Great Valley is at its widest and deepest there, in the Tulare geologic basin. Geoengineer.org uses third party cookies to improve our website and your experience when using it. Earthquakes estimated at magnitude 5.9 occurred on the Hayward Fault in 1864 and 1870, and a magnitude 5.6 event struck in 1889. transient fault creep accumulating an average of 20–25 mm of displacement on the fault followed by a gradual return to steady creep around year 2000. For ten years I was lucky enough to have my office right on top of the fault, in the infamous "Section KK" at the stadium. Of all the East Bay cities, Oakland owns the longest stretch of the Hayward fault. Every April (anniversary month of the SF '06 earthquake), tours would come and see all the wonderful signs of creep. Specific interests in geotechnical engineering, if I may call it that, is bending twisting! The Stadium often wonder if fault creep is measurable surface displacement along a fault in Hollister show significant offset several... The North America plate slipped 3 to 6 feet along the fault broke for about miles! Answer is … the two parts of the fault the fault results in displacement. Habitable ) by Walking…the Hayward fault along the Oakland-Berkeley border computer modeling to show that the west side the. In 1868 its earthquake potential 1 ] Spatial and temporal variations of aseismic creep. 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