This digital map database, compiled from previously open- filed U.S. Geological Survey reports (Graymer and others, 1994, Graymer, Jones, and Brabb, 1994) and unpublished data, represents the general distribution of rocks and faults in the Hayward fault zone. Combining these intensity estimates with current knowledge of earthquake effects and geology allows researchers to create a “ShakeMap” that depicts the inferred intensity of shaking throughout the region in 1868 and can also be used to predict damage to modern buildings. This digital map database, compiled from previously open- filed U.S. Geological Survey reports (Graymer and others, 1994, Graymer, Jones, and Brabb, 1994) and unpublished data, represents the general distribution of rocks and faults in the Hayward fault zone. The Hayward fault began forming about 12 million years ago as part of the North … The Seismic Hazard Mapping Program addresses the secondary earthquake hazards of liquefaction (the inability of water-saturated, heavily shaken soil to support structures) and landslides. (Public domain.). In 1996, an 18-millimeter creep event, the largest ever observed on the Hayward fault, occurred between surveys 63 days apart. However, as in 1906, well-constructed buildings on firm ground sustained much less damage. The Hayward Fault is a Strike-slip Fault. 1) strike-slip fault. Hayward Fault connection. The Hayward Fault, a long and lethal crack in the Earth, slices along the base of the Berkeley Hills and directly through the University of California. October 21, 2008, marks the 140th Anniversary of the 1868 approximate Magnitude 7 earthquake. If that is the case, the longer fault system could produce larger temblors. By Thomas M. Brocher, Jack Boatwright, James J. Lienkaemper, Carol S. Prentice, David P. Schwartz, and Howard Bundock. Because seismographs had not yet been invented, there are no recordings of the 1868 earthquake. Nearly all transform faults are in the deep sea, but the major ones on land are noteworthy and dangerous, such as the Haiti Earthquake of 2010. This event marked the end of a period of severely reduced creep on the southern part of the fault that began after the 1989 Loma Prieta, California, earthquake. The red stripe, which I added, represents the Hayward fault. ThoughtCo uses cookies to provide you with a great user experience. Technically speaking, the Hayward is a right-lateral strike-slip fault. "The Hayward Fault is a tectonic time bomb," said U.S. Geological Survey senior seismologist Tom Brocher. Traces of the Hayward Fault, California The purpose of this map is to show the location of and evidence for recent movement on active fault traces within the Hayward Fault Zone, California. Families; Couples; Solo; Business; Friends; Time of year. In 1868, the little settlement of Haywards was nearest to the epicenter of the earthquake. These data are a geospatial representation of liquefaction potential for the HayWired earthquake scenario, a magnitude 7.0 earthquake occurring on the Hayward Fault on April 18, 2018, with an epicenter in the city of Oakland, CA. But the most significant improvement in shaking resistance was the advent of steel-frame buildings in 1885. San Jose, a town of about 9,000 that lies several miles south and west of the fault trace, had few wrecked buildings but many fallen chimneys. The Hayward Fault will rupture violently again, and perhaps soon. All reviews central park fascinating. The hazard of building on landfill in San Francisco Bay (called “made land” at the time) and the admonition to “build no more cornices” were largely forgotten by the time of the 1906 quake. The most dangerous fault in the Bay Area is, as of now, due to fail at any time. The next time it produces a large quake, the damage and destruction could be staggering - estimated economic losses from an 1868-strength earthquake (6.8 magnitude) could exceed 120 billion dollars. Fault creep Strike-slip faults have walls that move sideways, not up or down. Popular mentions . Because the approximate location of the Hayward Fault, its potential for significant earthquakes were known at the time of construction, Howard adapted the design of the stadium accordingly. That is, the slip … It suggests that either the fault is creeping there, or there has been recent seismic slip.” In fact, according to Watt et al., even the most recent prehistoric earthquakes along the Rodgers Creek fault and Hayward faults, which struck sometime between 1715 and 1776, could have been a single combined event given dating uncertainties. 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