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Chino Fault
The Chino Fault extends along the eastern Chino Hills range region, from Corona in Riverside County to the Los Serranos, Chino Hills area of San Bernardino County in Southern California. Geology The Chino Fault and Whittier Fault are the two upper branches of the Elsinore Fault Zone, which is part of the trilateral split of the San Andreas fault system. The right-lateral strike-slip fault has a slip rate of 1.0 millimeter/year and is capable of producing anywhere from a 6.0 to a 7.0 earthquake. See also * 2008 Chino Hills earthquake – ''Whittier Fault'' * Puente Hills Fault The Puente Hills Fault (also known as the Puente Hills Thrust Fault System) is an active geological fault that is located in the Los Angeles Basin in California. The thrust fault was discovered in 1999 and runs about in three discrete sections f ... References Seismic faults of California Strike-slip faults Chino Hills (California) Geology of Riverside County, California Geology of San Ber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chino Hills
The Chino Hills are a mountain range on the border of Orange, Los Angeles, and San Bernardino counties, California, with a small portion in Riverside County. The Chino Hills State Park preserves open space and habitat in them. Geography The Chino Hills are separated from the Santa Ana Mountains to the south by the Santa Ana River ( Santa Ana Canyon). On the northwest, Brea Canyon separates the Chino Hills from the Puente Hills.''Santa Ana, California,'' 30x60 Minute Topographic Quadrangle, USGS, 1983 To the north of the Puente Hills and San Jose Creek lie the San Jose Hills. The only paved road crossing the Chino Hills is Carbon Canyon Road (State Route 142). Flora The Chino Hills are in the California chaparral and woodlands ecoregion of the California Floristic Province. The California native plants here are in the chaparral and oak woodland plant communities, with remnant stands of native grasses of California. Chino Hills earthquake On July 29, 2008, a magnitud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A '' fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Riverside County, California
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of Eart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chino Hills (California)
The Chino Hills are a mountain range on the border of Orange, Los Angeles, and San Bernardino counties, California, with a small portion in Riverside County. The Chino Hills State Park preserves open space and habitat in them. Geography The Chino Hills are separated from the Santa Ana Mountains to the south by the Santa Ana River ( Santa Ana Canyon). On the northwest, Brea Canyon separates the Chino Hills from the Puente Hills.''Santa Ana, California,'' 30x60 Minute Topographic Quadrangle, USGS, 1983 To the north of the Puente Hills and San Jose Creek lie the San Jose Hills. The only paved road crossing the Chino Hills is Carbon Canyon Road (State Route 142). Flora The Chino Hills are in the California chaparral and woodlands ecoregion of the California Floristic Province. The California native plants here are in the chaparral and oak woodland plant communities, with remnant stands of native grasses of California. Chino Hills earthquake On July 29, 2008, a magnitude 5.4 e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strike-slip Faults
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A '' fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismic Faults Of California
Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies. It also includes studies of earthquake environmental effects such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, glacial, fluvial, oceanic, atmospheric, and artificial processes such as explosions. A related field that uses geology to infer information regarding past earthquakes is paleoseismology. A recording of Earth motion as a function of time is called a seismogram. A seismologist is a scientist who does research in seismology. History Scholarly interest in earthquakes can be traced back to antiquity. Early speculations on the natural causes of earthquakes were included in the writings of Thales of Miletus (c. 585 BCE), Anaximenes of Miletus (c. 550 BCE), Aristotle (c. 340 BCE), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puente Hills Fault
The Puente Hills Fault (also known as the Puente Hills Thrust Fault System) is an active geological fault that is located in the Los Angeles Basin in California. The thrust fault was discovered in 1999 and runs about in three discrete sections from the Puente Hills region in the southeast to just south of Griffith Park in the northwest. The fault is known as a blind thrust fault, as the fault plane does not extend to the surface. Large earthquakes on the fault are relatively infrequent but computer modeling has indicated that a major event could have substantial impact in the Los Angeles area. The fault is now thought to be responsible for one moderate earthquake in 1987 (the 1987 Whittier Narrows earthquake) and another light event that took place in 2010, with the former causing considerable damage and deaths. Geology The Los Angeles Basin is situated along the coast of Southern California at the confluence of the Transverse Ranges and the Peninsular Ranges. The basin is unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2008 Chino Hills Earthquake
The 2008 Chino Hills earthquake occurred at 11:42:15 am PDT (18:42:15 UTC) on July 29 in Southern California. The epicenter of the magnitude 5.4 earthquake was in Chino Hills, c. east-southeast of downtown Los Angeles. Though there were no deaths, eight people were injured, and it caused considerable damage in numerous structures throughout the area and caused some amusement park facilities to shut down their rides. The earthquake led to increased discussion regarding the possibility of a stronger earthquake in the future. Earthquake The Chino Hills earthquake was caused by oblique-slip faulting, with components of both thrust and sinistral strike-slip displacement. Preliminary reports cited the Whittier fault as the active cause, but the quake was later determined to have been generated by the " Yorba Linda trend," as identified by Caltech seismologist Egill Hauksson. Its epicenter was within of Chino Hills and its hypocenter was c. deep. Initial estimations of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Andreas Fault
The San Andreas Fault is a continental transform fault that extends roughly through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip (horizontal). The fault divides into three segments, each with different characteristics and a different degree of earthquake risk. The slip rate along the fault ranges from /yr. It was formed by a transform boundary. The fault was identified in 1895 by Professor Andrew Lawson of UC Berkeley, who discovered the northern zone. It is often described as having been named after San Andreas Lake, a small body of water that was formed in a valley between the two plates. However, according to some of his reports from 1895 and 1908, Lawson actually named it after the surrounding San Andreas Valley. Following the 1906 San Francisco earthquake, Lawson concluded that the fault extended all the way into southern California. In 1953, geologist Thomas Dibblee c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corona, California
Corona ( Spanish for "Crown") is a city in Riverside County, California, United States. At the 2020 census, the city had a population of 157,136, up from 152,374 at the 2010 census. The cities of Norco and Riverside lie to the north and northeast, Chino Hills and Yorba Linda to the northwest, Anaheim to the west, Cleveland National Forest and the Santa Ana Mountains to the southwest, and unincorporated Riverside County along the rest of the city's borders. Downtown Corona is approximately southeast of Downtown Los Angeles and north-northwest of San Diego. Corona, located along the western edge of Southern California's Inland Empire region, is known as the "Circle City" due to Grand Boulevard's circular layout. It is one of the most residential cities in the Inland Empire, but also has a large industrial portion on the northern half, being the headquarters of companies such as Fender Musical Instruments Corporation, Monster Beverage Corporation, and supercar manufact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elsinore Fault Zone
The Elsinore Fault Zone is a large right-lateral strike-slip geological fault structure in Southern California. The fault is part of the trilateral split of the San Andreas fault system and is one of the largest, though quietest faults in Southern California. Fault characteristics The Elsinore fault zone, not including Whittier, Chino, and Laguna Salada faults, is long with a slip-rate of 4.0 millimeters/year (0.15 in/yr). It is estimated that this zone is capable of producing a quake of 6.5–7.5 MW. The projected interval between major rupture events is 250 years. The last major rupture event on the main Elsinore fault was in 1910 with a 6 MW earthquake centered just northwest of the city of Lake Elsinore. Fault segments and geography The fault runs from the mountainous Peninsular Ranges region between El Centro and San Diego, northwest to the Chino Hills range and Chino Hills. On the southern end of the fault zone is the southeastern extension of the Elsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whittier Fault
The Whittier Fault is a geologic fault located in eastern Los Angeles County in Southern California, that is one of the two upper branches of the Elsinore Fault Zone, with the Chino Fault the second. Geology The Whittier Fault is a right-lateral strike-slip fault that runs along the Chino Hills range between the cities of Chino Hills and Whittier. The fault has a slip rate of per year. It is estimated that this fault could generate a quake of 6.0–7.2 on the moment magnitude scale. See also * Puente Hills Fault * San Andreas Fault The San Andreas Fault is a continental transform fault that extends roughly through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip (horizontal). ... References * Seismic faults of California Strike-slip faults Geology of Los Angeles County, California Geology of Orange County, California Geology of Riverside County, California G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
