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2000 Yountville Earthquake
The 2000 Yountville earthquake occurred with a moment magnitude of 5 on a previously unmapped fault, about south southwest of Yountville, California in the Mayacamas Mountain Range under Mount Veeder and about south northwest of Napa, California. It occurred at 01:36 PDT (08:36 UTC) on September 3. Earthquake The earthquake occurred at a depth of 9.4 km on a northwest-oriented fault and with a right-lateral strike-slip motion. The epicenter of the earthquake was near the West Napa Fault, a previously unmarked fault. Damage Several unreinforced masonry buildings in downtown Napa suffered exterior damage as a result of the earthquake. Sixteen buildings were red tagged following the event and 168 were yellow tagged. Although the magnitude of the primary event was considered moderate, shaking was intensified in the city of Napa and surrounding area due to the sedimentary soil on the floor of the valley. The earthquake caused an interruption of power to approximately 10,00 ... [...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 the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Gas And Electric Company
The Pacific Gas and Electric Company (PG&E) is an American investor-owned utility (IOU). The company is headquartered in the Pacific Gas & Electric Building, in San Francisco, California. PG&E provides natural gas and electricity to 5.2 million households in the northern two-thirds of California, from Bakersfield and northern Santa Barbara County, almost to the Oregon and Nevada state lines. Overseen by the California Public Utilities Commission, PG&E is the leading subsidiary of the holding company PG&E Corporation, which has a market capitalization of $3.242 billion as of January 16, 2019. PG&E was established on October 10, 1905 from the merger and consolidation of predecessor utility companies, and by 1984 was the United States' "largest electric utility business". PG&E is one of six regulated, investor-owned electric utilities (IOUs) in California; the other five are PacifiCorp, Southern California Edison, San Diego Gas & Electric, Bear Valley Electric, and Liberty Utili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Napa 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 E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquakes In California
The earliest known California earthquake was documented in 1769 by the Spanish explorers and Catholic missionaries of the Portolá expedition as they traveled northward from San Diego along the Santa Ana River near the present site of Los Angeles. Ship captains and other explorers also documented earthquakes. As Spanish missions were constructed beginning in the late 18th century, earthquakes records were kept. After the missions were secularized in 1834, records were sparse until the California Gold Rush in the 1840s. From 1850–2004, there was about one potentially damaging event per year on average, though many of these did not cause serious consequences or loss of life. Since the three damaging earthquakes that occurred in the American Midwest and the East Coast ( 1755 Cape Ann, 1811–12 New Madrid, 1886 Charleston) were well known, it became apparent to settlers that the earthquake hazard was different in California. While the 1812 San Juan Capistrano, 1857 Fort Tejon, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In The United States
The following is a list of notable earthquakes and tsunamis which had their epicenter in areas that are now part of the United States with the latter affecting areas of the United States. Those in ''italics'' were not part of the United States when the event occurred. List of earthquakes Earthquake swarms which affected the United States: * 1962–71 Denver earthquake swarm * Enola earthquake swarm * 2008 Reno earthquakes * Guy-Greenbrier earthquake swarm * Oklahoma earthquake swarms (2009–present) Earthquakes which affected the United States but whose epicenters were outside the United States borders: * 1925 Charlevoix–Kamouraska earthquake – magnitude 6.2 earthquake, no injuries or fatalities anywhere * 1979 Imperial Valley earthquake – magnitude 6.4 earthquake with an epicenter less than 1 km inside Mexico – significant damage and injuries on both sides of the border (60 in the US) * 2010 Baja California earthquake (Mexico near S California) – magnitude 7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In California
The earliest known California earthquake was documented in 1769 by the Spanish explorers and Catholic missionaries of the Portolá expedition as they traveled northward from San Diego along the Santa Ana River near the present site of Los Angeles. Ship captains and other explorers also documented earthquakes. As Spanish missions in California, Spanish missions were constructed beginning in the late 18th century, earthquakes records were kept. After the missions were Secularization, secularized in 1834, records were sparse until the California Gold Rush in the 1840s. From 1850–2004, there was about one potentially damaging event per year on average, though many of these did not cause serious consequences or loss of life. Since the three damaging earthquakes that occurred in the Midwestern United States, American Midwest and the East Coast of the United States, East Coast (1755 Cape Ann earthquake, 1755 Cape Ann, 1811–1812 New Madrid earthquakes, 1811–12 New Madrid, 1886 Char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In 2000
This is a list of earthquakes in 2000. Only earthquakes of magnitude 6 or above are included, unless they result in damage and/or casualties, or are notable for some other reason. All dates are listed according to UTC time. Compared to other years Overall By death toll * Note: At least 10 casualties By magnitude * Note: At least 7.0 magnitude By month January * A magnitude 6.0 earthquake struck Macquarie Island, on January 1 at a depth of . * A magnitude 6.1 earthquake struck Santa Cruz Islands, on January 1 at a depth of . * A magnitude 6.1 earthquake struck Alaska, on January 6 at a depth of . * A magnitude 6.2 earthquake struck Luzon, on January 6 at a depth of . * A magnitude 6.4 earthquake struck Solomon Islands, on January 8 at a depth of . * A magnitude 6.4 earthquake struck Antofagasta, on January 8 at a depth of . * A magnitude 7.2 earthquake struck Tonga, on January 8 at a depth of . * A magnitude 6.5 earthquake struck Fiji, on January 9 at a depth of . * A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Department Of Transportation
The California Department of Transportation (Caltrans) is an executive department of the U.S. state of California. The department is part of the cabinet-level California State Transportation Agency (CalSTA). Caltrans is headquartered in Sacramento. Caltrans manages the state's highway system, which includes the California Freeway and Expressway System, supports public transportation systems throughout the state and provides funding and oversight for three state-supported Amtrak intercity rail routes (''Capitol Corridor'', ''Pacific Surfliner'' and ''San Joaquins'') which are collectively branded as ''Amtrak California''. In 2015, Caltrans released a new mission statement: "Provide a safe, sustainable, integrated and efficient transportation system to enhance California’s economy and livability." History The earliest predecessor of Caltrans was the Bureau of Highways, which was created by the California Legislature and signed into law by Governor James Budd in 1895.Raymon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SF Gate
The ''San Francisco Chronicle'' is a newspaper serving primarily the San Francisco Bay Area of Northern California. It was founded in 1865 as ''The Daily Dramatic Chronicle'' by teenage brothers Charles de Young and Michael H. de Young. The paper is owned by the Hearst Corporation, which bought it from the de Young family in 2000. It is the only major daily paper covering the city and county of San Francisco. The paper benefited from the growth of San Francisco and had the largest newspaper circulation on the West Coast of the United States by 1880. Like other newspapers, it experienced a rapid fall in circulation in the early 21st century and was ranked 18th nationally by circulation in the first quarter of 2021. In 1994, the newspaper launched the SFGATE website, with a soft launch in March and official launch November 3, 1994, including both content from the newspaper and other sources. "The Gate" as it was known at launch was the first large market newspaper website in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Bay (San Francisco Bay Area)
The North Bay is a subregion of the San Francisco Bay Area, in California, United States. The largest city is Santa Rosa, which is the fifth-largest city in the Bay Area. It is the location of the Napa and Sonoma wine regions, and is the least populous and least urbanized part of the Bay Area. It consists of Marin, Napa, Solano and Sonoma counties. Transportation The North Bay is connected to San Francisco by the Golden Gate Bridge and to the East Bay by the Richmond–San Rafael Bridge, Carquinez Bridge and the Benicia–Martinez Bridge. Several ferry routes operate between the North Bay and San Francisco, from terminals located in Angel Island, Larkspur, Sausalito, Tiburon and Vallejo. The Sonoma–Marin Area Rail TransitSMART, a commuter rail line from Larkspur to Cloverdale, was approved by voters in November 2008. Passenger service began between the Sonoma County Airport station and San Rafael in August 2017 and was completed as far south as Larkspur in 2019. Hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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