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1892 Vacaville–Winters Earthquakes
The 1892 Vacaville–Winters earthquakes occurred in northern California as a large doublet on April 19 and April 21. Measured on a seismic scale that is based on an isoseismal map or the event's felt area, the 6.4 and 6.2 events were assigned a maximum Mercalli intensity of IX (''Violent''), and affected the North Bay and Central Valley areas. The total damage was estimated to be between $225,000 and 250,000 and one person was killed. No evidence of fault movement on the surface of the ground was observed as a result of either of the strong shocks. Both occurred in the domain of the San Andreas strike-slip system of faults, but their focal mechanism is uncertain. Tectonic setting The primary tectonic feature of the region is the strike-slip San Andreas system of faults (that move laterally alongside one another). From west to east, the Hayward–Rogers Creek Fault Zone and the Concord–Green Valley Faults are the closest to Vacaville and Winters. A 1999 forecast state ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Dollar
The United States dollar ( symbol: $; code: USD; also abbreviated US$ or U.S. Dollar, to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official currency of the United States and several other countries. The Coinage Act of 1792 introduced the U.S. dollar at par with the Spanish silver dollar, divided it into 100 cents, and authorized the minting of coins denominated in dollars and cents. U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks due to their predominantly green color. The monetary policy of the United States is conducted by the Federal Reserve System, which acts as the nation's central bank. The U.S. dollar was originally defined under a bimetallic standard of (0.7735 troy ounces) fine silver or, from 1837, fine gold, or $20.67 per troy ounce. The Gold Standard Act of 1900 linked the dollar solely to gold. From 1934, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresno, California
Fresno () is a major city in the San Joaquin Valley of California, United States. It is the county seat of Fresno County and the largest city in the greater Central Valley region. It covers about and had a population of 542,107 in 2020, making it the fifth-most populous city in California, the most populous inland city in California, and the 34th-most populous city in the nation. The Metro population of Fresno is 1,008,654 as of 2022. Named for the abundant ash trees lining the San Joaquin River, Fresno was founded in 1872 as a railway station of the Central Pacific Railroad before it was incorporated in 1885. It has since become an economic hub of Fresno County and the San Joaquin Valley, with much of the surrounding areas in the Metropolitan Fresno region predominantly tied to large-scale agricultural production. Fresno is near the geographic center of California, approximately north of Los Angeles, south of the state capital, Sacramento, and southeast of San Franc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lineament
''See also Line (geometry)'' A lineament is a linear feature in a landscape which is an expression of an underlying geological structure such as a fault. Typically a lineament will appear as a fault-aligned valley, a series of fault or fold-aligned hills, a straight coastline or indeed a combination of these features. Fracture zones, shear zones and igneous intrusions such as dykes can also be expressed as geomorphic lineaments. Lineaments are often apparent in geological or topographic maps and can appear obvious on aerial or satellite photographs. There are for example, several instances within Great Britain. In Scotland the Great Glen Fault and Highland Boundary Fault give rise to lineaments as does the Malvern Line in western England and the Neath Disturbance in South Wales. The term 'megalineament' has been used to describe such features on a continental scale. The trace of the San Andreas Fault might be considered an example.Whitten & Brooks, The Penguin Dictionary of Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fissure
A fissure is a long, narrow crack opening along the surface of Earth. The term is derived from the Latin word , which means 'cleft' or 'crack'. Fissures emerge in Earth's crust, on ice sheets and glaciers, and on volcanoes. Ground fissure A , also called an , is a long, narrow crack or linear opening in the Earth's crust. Ground fissures can form naturally, such as from tectonic faulting and earthquakes, or as a consequence of human activity, such as oil mining and groundwater pumping. Once formed, ground fissures can be extended and eroded by torrential rain. They can be hazardous to people and livestock living on the affected surfaces and damaging to property and infrastructure, such as roads, underground pipes, canals, and dams. In circumstances where there is the extensive withdrawal of groundwater, the earth above the water table can subside causing fissures to form at the surface. This typically occurs at the floor of arid valleys having rock formations and compacte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allendale, Solano County, California
Allendale is a census-designated place (CDP) in Solano County, California, United States. Allendale is located along Interstate 505 west of Dixon. The population was 1,506 at the 2010 census. Geography According to the United States Census Bureau, the CDP covers an area of 6.2 square miles (16.1 km2), 98.98% of it land and 1.02% of it water. Demographics The 2010 United States Census reported that 1,506 people, 528 households, and 431 families resided in the CDP. The population density was . There were 554 housing units at an average density of . The racial makeup of the CDP was 82.3% White (75.0% non-Hispanic), 3.3% African American, 1.5% Native American, 2.8% Asian, 0.1% Pacific Islander, 5.2% from other races, and 4.8% from two or more races. 15.6% of the population was Hispanic or Latino of any race. The Census reported that 99.7% of the population lived in households and 0.3% lived in non-institutionalized group quarters. There were 528 households, out of wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dixon, California
Dixon is a city in northern Solano County, California, Solano County, California, United States, located from the state capital, Sacramento, California, Sacramento. It has a Mediterranean climate, hot-summer mediterranean climate on the Köppen climate classification scale. Its population was 18,988 at the 2020 census. Other nearby cities include Vacaville, California, Vacaville, Winters, California, Winters, Davis, California, Davis, Woodland, California, Woodland, and Rio Vista, California, Rio Vista. History The first semi-permanent European settlement to develop in the Dixon area emerged during the California Gold Rush of the mid-19th century when the community of Silveyville was founded in 1852 by Elijah Silvey as a halfway point between the Pacific coast and the rich gold fields of Sacramento along a route commonly traveled by miners. In 1868, Central Pacific railroad came through the area and missed Silveyville by a few miles. As a result, local leaders decided to phys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modified Mercalli Intensity Scale
The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the effects of an earthquake at a given location, distinguished from the earthquake's inherent force or strength as measured by seismic magnitude scales (such as the "" magnitude usually reported for an earthquake). While shaking is caused by the seismic energy released by an earthquake, earthquakes differ in how much of their energy is radiated as seismic waves. Deeper earthquakes also have less interaction with the surface, and their energy is spread out across a larger volume. Shaking intensity is localized, generally diminishing with distance from the earthquake's epicenter, but can be amplified in sedimentary basins and certain kinds of unconsolidated soils. Intensity scales empirically categorize the intensity of shaking based on the effect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capay, California
Capay (Wintun: ''Kapai'', meaning "Stream") is an unincorporated community in Yolo County, California. It is located on Cache Creek west-northwest of Esparto, in the Capay Valley, in the northwestern part of the county. Capay's ZIP Code is 95607 and its area code 530. It lies at an elevation of 210 feet (64 m). History Capay is located on the Mexican land grant Rancho Cañada de Capay. Capay was originally named Munchville after one of the first white settlers, a man named Munch, who built a house on the Cache Creek at the site in 1857. Mr. Empyre and Mr. Munch built a two-story building in the area. The town acquired the name Langville after John A. Lang. In 1870, Lang operated a hotel and owned a brick yard and a store. Langville grew enough to have a town plat filed on January 1, 1875, which renamed the town as Capay. A post office opened in Capay in 1868. Climate This region experiences hot, dry summers and cool, wet winters. According to the Köppen Climate Class ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esparto, California
{{Infobox settlement , official_name = Esparto , native_name = , other_name = , settlement_type = census-designated place , image_skyline = Esparto Fire Department.jpg , image_caption = The Esparto Fire Department station in downtown. , image_flag = , image_seal = , image_shield = , image_map = Yolo_County_California_Incorporated_and_Unincorporated_areas_Esparto_Highlighted.svg , mapsize = 250x200px , map_caption = Location in Yolo County and the state of California , pushpin_map = , coordinates = {{coord, 38, 41, 35, N, 122, 1, 8, W, region:US-CA, display=inline,title , subdivision_type = Country , subdivision_name = {{USA , subdivision_type1 = State , subdivision_name1 = {{flag, California , subdivision_type2 = County , subdivision_name2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sacramento Valley
, photo =Sacramento Riverfront.jpg , photo_caption= Sacramento , map_image=Map california central valley.jpg , map_caption= The Central Valley of California , location = California, United States , coordinates = , boundaries = Sierra Nevada (east), Cascade Range, Klamath Mountains (north), Coast Range (west), Sacramento–San Joaquin River Delta (south) , towns = Redding, Chico, Yuba City, Sacramento , watercourses = Sacramento River The Sacramento Valley is the area of the Central Valley of the U.S. state of California that lies north of the Sacramento–San Joaquin River Delta and is drained by the Sacramento River. It encompasses all or parts of ten Northern California counties. Although many areas of the Sacramento Valley are rural, it contains several urban areas, including the state capital, Sacramento. Since 2010, statewide droughts in California have further strained both the Sacramento Valley's and the Sacramento metropolitan region's water security. Geog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yolo County, California
Yolo County (; Wintun: ''Yo-loy''), officially the County of Yolo, is a county located in the northern portion of the U.S. state of California. As of the 2020 census, the population was 216,403. Its county seat is Woodland. Yolo County is included in the Greater Sacramento metropolitan area and is located in the Sacramento Valley. The majority of Yolo County remains a relatively rural agricultural region. Etymology In the original act of 1850 the name was spelled "Yola." ''Yolo'' is a Patwin Native American name variously believed to be a corruption of a tribal name ''Yo-loy'' meaning "a place abounding in rushes", the village of Yodoi, believed to be in the vicinity of Knights Landing, California, or the name of the chief of said village, ''Yodo''. History Yolo County was one of the original counties of California, created in 1850 at the time of statehood. Government The county is governed by a board of five district supervisors as well as the governments of its four in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solano County, California
Solano County () is a county located in the U.S. state of California. As of the 2020 census, the population was 453,491. The county seat is Fairfield. Solano County comprises the Vallejo–Fairfield, CA Metropolitan Statistical Area, which is also included in the San Jose–San Francisco–Oakland, CA Combined Statistical Area. Solano County is the northeastern county in the nine-county San Francisco Bay Area region. A portion of the South Campus at the University of California, Davis is in Solano County. History Solano County was one of the original counties of California, created in 1850 at the time of statehood. At the request of General Mariano Guadalupe Vallejo, the county was named for Chief Solano of the Suisun people, a Native American tribe of the region and Vallejo's close ally. Chief Solano at one time led the tribes between the Petaluma River and the Sacramento River. The chief was also called ''Sem-Yeto'', which signifies "brave or fierce hand." The Chief ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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