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San Joaquin Hills
The San Joaquin Hills are a low mountain range of the Peninsular Ranges System, located in coastal Orange County, California. They extend in a northwest–southeast direction, starting in the northwest in Newport Beach, California, Newport Beach at the southern edge of the Los Angeles Basin, and extending southeast to San Juan Capistrano, California, San Juan Capistrano. Geography Geology The main ridge of the San Joaquin Hills runs southeast from the Upper Newport Bay area, attaining its maximum height of roughly near Laguna Beach, California, Laguna Beach. Many of the high ridges exceed in height. The hills stretch over a distance of about and can be up to broad. In many places, the San Joaquin Hills drop directly into the Pacific Ocean, creating the steep sea cliffs that characterize the region. Streams that originate on the west slope of the range include Buck Gully, Los Trancos Creek, Muddy Creek, El Moro Creek, Emerald Creek, Prima Deshecha Cañada, Segunda Deshecha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California State Route 73
State Route 73 (SR 73) is an approximately state highway in Orange County, California. The southernmost of the highway is a toll road operated by the Transportation Corridor Agencies, San Joaquin Hills Transportation Corridor Agency named the San Joaquin Hills Transportation Corridor, which opened in November 1996. The northernmost of the highway, which opened in 1978, is part of the Corona del Mar Freeway. SR 73's southern terminus is at Interstate 5 in California, Interstate 5 (I-5) near the San Juan Capistrano, California, San Juan Capistrano–Mission Viejo, California, Mission Viejo–Laguna Niguel, California, Laguna Niguel tripoint. Its northern terminus is at Interstate 405 (California), Interstate 405 (I-405) in Costa Mesa, California, Costa Mesa. The highway's alignment through the San Joaquin Hills follows an approximately parallel path between the California State Route 1, Pacific Coast Highway and I-405. Currently, there are no HOV Lane, HOV lanes for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand Canyon Wash
Sand Canyon Wash is an approximately (to its longest source) tributary of San Diego Creek in Orange County, California. Course Its headwaters rise in the northern San Joaquin Hills as two streams, Shady Canyon Creek and Bommer Canyon Creek, then flows northwest into Sand Canyon Reservoir, formed by a dam across Strawberry Valley east of the community of Turtle Rock near Irvine. The dry creek bed continues northwest from the reservoir, turning west where it enters the city of Irvine, flowing along the northeastern boundary of William R. Mason Regional Park. The creek then turns west to empty into San Diego Creek in its San Joaquin Marsh section, about above where the larger creek enters Upper Newport Bay Upper Newport Bay (connected to Newport Harbor via "The Back Bay") is a large coastal wetland (an estuary) in Newport Beach, California, and a major stopover for birds on the Pacific Flyway. Dozens of species, including endangered ones, can be .... See also * San Diego ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Gap
A water gap is a gap that flowing water has carved through a mountain range or mountain ridge and that still carries water today. Such gaps that no longer carry water currents are called wind gaps. Water gaps and wind gaps often offer a practical route for road and rail transport to cross the mountain barrier. Geology A water gap is usually an indication of a river that is older than the current topography. The likely occurrence is that a river established its course when the landform was at a low elevation, or by a rift in a portion of the crust of the earth having a very low stream gradient and a thick layer of unconsolidated sediment. In a hypothetical example, a river would have established its channel without regard for the deeper layers of rock. A later period of uplift would cause increased erosion along the riverbed, exposing the underlying rock layers. As the uplift continued, the river, being large enough, would continue to erode the rising land, cutting thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KNBC
KNBC (channel 4) is a television station in Los Angeles, California, United States, serving as the West Coast of the United States, West Coast flagship (broadcasting), flagship station of the NBC network. It is owned and operated by the network's NBC Owned Television Stations division alongside Corona, California, Corona-licensed Telemundo outlet KVEA (channel 52). The two stations share studios at the Brokaw News Center in the northwest corner of the Universal Studios Hollywood lot off Lankershim Boulevard in Universal City, California, Universal City; KNBC's transmitter is located on Mount Wilson (California), Mount Wilson. History Channel 4 first went on the air as KNBH (standing for "NBC Hollywood, Los Angeles, Hollywood") on January 16, 1949. It was the second-to-last VHF station in Los Angeles to debut, and the last of NBC's five original owned-and-operated stations to sign on. Unlike the other four, KNBH was the only NBC-owned television station that did not benefit from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange County Register
''The Orange County Register'' is a paid daily List of newspapers in California, newspaper published in California. The ''Register'', published in Orange County, California, is owned by the private equity firm Alden Global Capital via its Digital First Media News subsidiaries. Freedom Communications owned the newspaper from 1935 to 2016. History The ''Register'' was founded by a consortium as the ''Santa Ana Daily Register'' in 1905. It was sold to J. P. Baumgartner in 1906 and to J. Frank Burke in 1927. In 1935 it was bought by Raymond C. Hoiles, who renamed it the ''Santa Ana Register.'' After the Japanese attack on Pearl Harbor, Hoiles was one of the few newspaper publishers in the country to oppose the forced relocation of Japanese and Japanese Americans to camps away from the West Coast. Hoiles reorganized his holdings as Freedom Newspapers, Inc. In 1950, the name was changed to Freedom Communications. The paper dropped "Santa Ana" from its title in 1952. In 1956, the ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1994 Northridge Earthquake
The 1994 Northridge earthquake affected Greater Los Angeles, California, on January 17, 1994, at 04:30:55 PST. The epicenter of the moment 6.7 () blind thrust earthquake was beneath the San Fernando Valley. Lasting approximately 8 seconds and achieving the largest peak ground acceleration of over 1.7 ''g'', it was the largest earthquake in the area since 1971. Shaking was felt as far away as San Diego, Turlock, Las Vegas, Richfield, Phoenix, and Ensenada. Fifty-seven people died and more than 9,000 were injured. In addition, property damage was estimated to be $13–50 billion, making it among the costliest natural disasters in U.S. history. Geology The epicenter region of the earthquake was located in the San Fernando Valley, about northwest of downtown Los Angeles. The United States Geological Survey (USGS) placed the hypocenter's geographical coordinates at and at a depth of . Measuring 6.7, it was the largest earthquake recorded in the Los Angeles area sin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a Fracture (geology), planar fracture or discontinuity in a volume of Rock (geology), rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust (geology), crust result from the action of Plate tectonics, plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction, 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 (geometry), 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 geological maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blind Thrust Earthquake
A blind thrust earthquake occurs along a thrust fault that does not show signs on the Earth's surface, hence the designation "blind". Such faults, being invisible at the surface, have not been mapped by standard surface geological mapping. Sometimes they are discovered as a by-product of oil exploration seismology; in other cases their existence is not suspected. Although such earthquakes are not amongst the most energetic, they are sometimes the most destructive, as conditions combine to form an urban earthquake which greatly affects urban seismic risk. A blind thrust earthquake is quite close, in meaning, to a buried rupture earthquake, if a buried rupture earthquake is not specifically about the fault, but signs the earthquake leaves, on the Earth's surface. Blind thrust faults Blind thrust faults generally exist near tectonic plate margins, in the broad disturbance zone. They form when a section of the Earth's crust is under high compressive stresses, due to plate margin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Clemente, California
San Clemente (; Spanish for " St. Clement" ) is a coastal city in southern Orange County, California, United States. It was named in 1925 after the Spanish colonial island (which was named after a Pope from the first century). Located in the Orange Coast region of the South Coast of California, San Clemente's population was 64,293 in at the 2020 census. Situated roughly midway between Los Angeles and San Diego, San Clemente is a popular tourist destination in Southern California, known for its beaches, Spanish Colonial Revival architecture, and hospitality industry. San Clemente's city slogan is "Spanish Village by the Sea". History Indigenous The Acjachemen are the Indigenous people of San Clemente. Spanish era In 1776, Father Junípero Serra founded Mission San Juan Capistrano, and afterward the local indigenous people were dubbed " Juaneños" in Spanish. Both Native Americans and Spanish settlers established villages near the mission, and local indigenous people w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dana Point, California
Dana Point () is a city located in southern Orange County, California, United States. The population was 33,107 at the 2020 census. It has one of the few harbors along the Orange County coast; with ready access via State Route 1, it is a popular local destination for surfing. The city was named after the headland of Dana Point, which was in turn named after Richard Henry Dana Jr., author of '' Two Years Before the Mast'', which included a description of the area. Dana described the locale, including neighboring San Juan Capistrano, as "the only romantic spot on the coast". This area is designated California Historical Landmark #189. History Indigenous The Acjachemen village site of ''Toovannga'' was located near the present-day site of Dana Point Harbor. The village was located near the mouth of the San Juan Creek. The people lived in villages of around 250 people and stewarded the land into a thriving ecosystem. Each village was politically independent and established tie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laguna Niguel, California
Laguna Niguel () is a city in Orange County, California, United States. The name Laguna Niguel is derived from the words "Laguna" (Spanish for "lagoon") and "Niguili" (the name of a Native American village once located near Aliso Creek). It also appeared in Spanish records as Nigüili, Nigüel, or Neuil from Juaneño (Acjachemem) ''nawil.'' As of the 2020 census, the population was 64,355. Laguna Niguel is located in the San Joaquin Hills in the southeastern corner of Orange County, close to the Pacific Ocean, and borders the cities of Aliso Viejo, Dana Point, Laguna Beach, Laguna Hills, Mission Viejo, and San Juan Capistrano. Laguna Niguel has its origins in the Rancho Niguel Mexican land grant, which was acquired in 1959 by the Laguna Niguel Corporation to develop one of California's first master-planned communities. As a predominantly residential city, Laguna Niguel serves as a bedroom community for the job centers of northern and central Orange County. Laguna Nigu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
