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Western Quebec Seismic Zone
The Western Quebec Seismic Zone (french: Zone sismique de l'Ouest du Québec) is a seismically active area in the Ottawa Valley in Eastern Ontario and Western Quebec. The zone stretches from Montreal to Témiscaming and from Cornwall up along the Laurentian Mountains. Significant earthquakes associated with this seismic zone include the 1732 Montreal earthquake, the 1935 Timiskaming earthquake, the 1944 Cornwall–Massena earthquake, and the 2010 Central Canada earthquake. Between the years 1980 and 2000 there were 16 earthquakes stronger than a Richter 4.0, with many more of a lesser magnitude. The zone averages about one seismic event every five days. Seismological monitoring of the zone is performed by the Canadian National Seismograph Network. Significant earthquakes 1732 Montreal earthquake Because this is the earliest recorded local earthquake, there is little information about it. It is known that it was a powerful earthquake, leaving much devastation but few d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Quebec Seismic Zone
The Western Quebec Seismic Zone (french: Zone sismique de l'Ouest du Québec) is a seismically active area in the Ottawa Valley in Eastern Ontario and Western Quebec. The zone stretches from Montreal to Témiscaming and from Cornwall up along the Laurentian Mountains. Significant earthquakes associated with this seismic zone include the 1732 Montreal earthquake, the 1935 Timiskaming earthquake, the 1944 Cornwall–Massena earthquake, and the 2010 Central Canada earthquake. Between the years 1980 and 2000 there were 16 earthquakes stronger than a Richter 4.0, with many more of a lesser magnitude. The zone averages about one seismic event every five days. Seismological monitoring of the zone is performed by the Canadian National Seismograph Network. Significant earthquakes 1732 Montreal earthquake Because this is the earliest recorded local earthquake, there is little information about it. It is known that it was a powerful earthquake, leaving much devastation but few d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richter Magnitude Scale
The Richter scale —also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale—is a measure of the strength of earthquakes, developed by Charles Francis Richter and presented in his landmark 1935 paper, where he called it the "magnitude scale". This was later revised and renamed the local magnitude scale, denoted as ML or . Because of various shortcomings of the original scale, most seismological authorities now use other similar scales such as the moment magnitude scale () to report earthquake magnitudes, but much of the news media still erroneously refers to these as "Richter" magnitudes. All magnitude scales retain the logarithmic character of the original and are scaled to have roughly comparable numeric values (typically in the middle of the scale). Due to the variance in earthquakes, it is essential to understand the Richter scale uses logarithms simply to make the measurements manageable (i.e., a magnitude 3 quake factors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Ontario
The geology of Ontario consists of the study of the rock formations in the most populated province of Canada. Ontario has some of the oldest rocks on Earth. It is made up of ancient Precambrian igneous and metamorphic rock and overlain by younger sedimentary rocks and soils. About 61% of the province is covered by the Canadian Shield. The shield can further be divided into three sections or provinces. The northwestern parts of the Shield, located roughly north and west of Sudbury, are known as the Superior province is the largest of the three sections, covering about 70% of the Shield portion in Ontario. The Southern province is a narrow region from Sault Ste. Marie to Kirkland Lake. The South central part is dominated by the Grenville Province but flanked by two basins of Phanerozoic materials. World-class mineral deposits can be found here and are mined extensively. Canadian Shield About 61% of Ontario is covered by the Canadian Shield, mostly with Precambrian rock. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Quebec
The geology of Quebec involves several different geologic provinces, made up of ancient Precambrian crystalline igneous and metamorphic rock, overlain by younger sedimentary rocks and soils. Most of southern Quebec is dominated by the Grenville Province, while the vast north is divided between the large Superior Province and the Churchill Province to the east, near Labrador. Geologic History, Stratigraphy & Tectonics The Grenville Province, which dominates southern Quebec, particularly the northern shore of the St. Lawrence formed beginning in the Archean, more than 2.5 billion years ago. Geologists subdivide the Grenville Province into the Allochthon along the river itself and the more northern Parautochthon. The Parautochthon is a band running parallel to the Grenville Front, which varies in width from Labrador to northeastern Georgian Bay on Lake Huron. Parautochthonous rocks are made up composed of ancient Archean and Proterozoic rocks that are highly deformed plutonic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In Canada
This is a list of earthquakes in Canada. List Abbreviations used: See also *Hydraulic fracturing in Canada References External links *Natural Resources CanadEarthquakes Canada*Earthquakes CanadRecent earthquakes {{DEFAULTSORT:Earthquakes In Canada Earthquakes Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ... Lists of disasters in Canada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquake Hazards Program
The 2004 re-authorization of National Earthquake Hazards Reduction Program (NEHRP) directed that the Director of the U.S. National Institute of Standards and Technology (NIST) establish the Advisory Committee on Earthquake Hazards Reduction (ACEHR) to assess: * trends and developments in the science and engineering of earthquake hazards reduction; * the effectiveness of NEHRP in performing its statutory activities: ** improved design and construction methods and practices; ** land use controls and redevelopment; ** prediction techniques and early-warning systems; ** coordinated emergency preparedness plans; and ** public education and involvement programs; * any need to revise NEHRP; and * the management, coordination, implementation, and activities of the NEHRP. On June 27, 2006, the official ''Charter of the Advisory Committee on Earthquake Hazards Reduction''http://www.nehrp.gov/pdf/acehr_charter_signed.pdf was established by the U.S. Department of Commerce, parent agency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modified Mercalli 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] |
Timiskaming District
Timiskaming is a district and census division in Northeastern Ontario in the Canadian province of Ontario. The district was created in 1912 from parts of Algoma, Nipissing, and Sudbury districts. In 1921, Cochrane District was created from parts of this district and parts of Thunder Bay District. The division had a population of 32,251 in the Canada 2016 Census. The land area is ; the population density was . It is just west of the similarly named Témiscamingue county in Québec, which is also informally called a region, but is administratively part of a greater region named Abitibi-Témiscamingue. Temiskaming District is home to several provincial parks. History The ''coureurs de bois'' explored and traded fur in what is now the Timiskaming District, in the 17th century. Subdivisions City * Temiskaming Shores (Haileybury, New Liskeard, Dymond Township, North Cobalt) Towns * Cobalt * Englehart * Kirkland Lake (Chaput Hughes, Swastika) * Latchford Townships * Arms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian National Seismograph Network
The Canadian National Seismograph Network is a network of seismographs to detect earthquakes across Canada. It is operated by the Geological Survey of Canada The Geological Survey of Canada (GSC; french: Commission géologique du Canada (CGC)) is a Canadian federal government agency responsible for performing geological surveys of the country, developing Canada's natural resources and protecting the en ... and consists of over 60 low-gain seismographs and over 100 high-gain seismographs. It was started in 1975. CN: Canadian National Seismograph Network https://www.fdsn.org/networks/detail/CN/ References Sources * Seismology of Canada Seismological observatories, organisations and projects {{Seismology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Resources Canada
Natural Resources Canada (NRCan; french: Ressources naturelles Canada; french: RNCan, label=none)Natural Resources Canada is the applied title under the Federal Identity Program; the legal title is Department of Natural Resources (). is the department of the Government of Canada responsible for natural resources, energy, minerals and metals, forests, earth sciences, mapping, and remote sensing. It was formed in 1994 by amalgamating the Department of Energy, Mines and Resources with the Department of Forestry. Under the ''Constitution Act, 1867'', primary responsibility for natural resources falls to provincial governments, however, the federal government has jurisdiction over off-shore resources, trade and commerce in natural resources, statistics, international relations, and boundaries. The department administers federal legislation relating to natural resources, including energy, forests, minerals and metals. The department also collaborates with American and Mexican governme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2010 Central Canada Earthquake
The 2010 Central Canada earthquake occurred with a moment magnitude of 5.0 in Central Canada on 23 June at about 13:41:41 EDT and lasted about 30 seconds. The epicentre was situated in the area of Buckingham, Quebec, approximately north of Ottawa, Ontario, closest to the settlement of Val-des-Bois, Quebec. Canada's capital, Ottawa, declared this earthquake as being its most powerful in 65 years. It was felt across most of Ontario and Quebec, as well as parts of the northeastern United States, in addition to places as far as Chicago, Pittsburgh, Baltimore, Charleston, West Virginia, and Halifax. It was the first moderate earthquake associated with the Western Quebec Seismic Zone since 20 April 2002, when the area was affected by magnitude 5.1 Mw tremors. Southern Ontario was also affected by the 1998 magnitude 5.2 Mw Pymatuning earthquake, associated with a different seismic region (Southern Great Lakes Seismic Zone). Although a 5.0 magnitude quake is considered to be mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
