The High Court held that the entire agreement clause was not effective in excluding misrepresentation claims and the parties had not separately agreed any such exclusion. Residents were generally shaken, but no damage was sustained. In 1985 the Army permanently sealed the disposal well in stages. The shock shuffled furniture around in homes, and left electrical wall outlets hanging by their wires at Irondale. Subsurface rocks in the Rangely Oil Field. The 1960s were a time full of big changes (the British Invasion, Moon landing and Flower Power) and unrest (Cuban Missile Crisis, President Kennedy’s assassination and the Vietnam War) in the United States. Two early morning shocks occurred November 14. She said that while Colorado had experienced several earthquakes close to Monday’s size in recent decades — a magnitude 5.3 near Denver in 1967 … The Rocky Mountain Arsenal was created out of farmland on the eastern edge of metro Denver during World War II to arm the U.S. Army. Additional cement barriers were placed inside the casing across zones that could access water-bearing formations (aquifers). Read more about how to obtain copies of certific… Just watch where you step. Modeling of near-field seismoscope observations lend support to the focal mechanisms derived. Long-period surface-wave studies are used together with P-wave first motions to show that the 10 April, 9 August, and 27 November 1967 earthquakes occurred at depths of 3 to 5 km and were characterized by normal faulting along a northwest striking fault plane. Article navigation. Both features are part of the eastern deformation front of the Laramide orogeny. A joint hypocenter relocation of 103 microearthquakes of a data set of 279 recorded between 1967 and 1968 shows a hypocenter pattern striking N50°W, with most of the events located about 5 km northwest of the disposal well at depths between 3 to 8 km. During 1968, ten slight shocks were felt in Colorado. In 1967 north-eastern Denver (Derby) earthquakes were the largest in the state, with three shocks above magnitude 5, and the greatest number, 314 events, recorded at GOL(4). Join the Westword community and help support independent local journalism in Denver. Greg Pinney, "Geologist Gives View on Quake," The Denver Post, Aug. 9, 1967 at 4. Several reported basement floors separated from walls. Volume 39, Number 1-2 The Army was dumping dangerous chemicals into a deep injection well out at the Rocky Mountain Arsenal. TimesMachine is an exclusive benefit for home delivery and digital subscribers. ... 1967, Page 58 Buy Reprints. Moderate mag. For testing purposes, the well was injected with approximately 568,000 gallons of city water prior to injecting any waste. The Denver Earthquakes The most economically damaging earthquake in Colorado’s history occurred on August 9, 1967 in the northeast Denver metropolitan area. It has over 40 individual and 60 institutional members including Canadian Forces museums, Parks Canada sites federal, provincial and municipal museums. On August 9, 1967, a 5.5 magnitude earthquake struck Northglenn, a northern suburb of Denver, Colorado. Earthquakes which did not affect the United States directly, but caused tsunamis which did: 1960 Valdivia earthquake and tsunami – magnitude 9.5 earthquake, between 2200 and 6000 fatalities, including 61 in Hilo, HI; 2006 Kuril Islands earthquake and tsunami – magnitude 8.3 earthquake… Since we started Westword, it has been defined as the free, independent voice of Denver, and we would like to keep it that way. After the war, it became a bustling center of industrial activity -- a top-secret center that created a lot of dangerous waste. The quake was the largest in Colorado since a magnitude-5.3 temblor was recorded in Denver's northern suburbs in 1967, said Paul Earle of the USGS. By continuing to use our website, you are agreeing to our, An assessment of source parameters of earthquakes in the cordillera of the western United States, Comment and Reply on ‘Erect floating stumps in Spirit Lake, Washington’: REPLY, Source parameters of the June 13, 1967 earthquake near Lake Ontario, New York State, Surface-wave radiation pattern and source parameters of Koyna earthquake of December 10, 1967, Inversion of regional surface-wave spectra for source parameters of aftershocks from the 1992 Petrolia earthquake sequence, Regional seismic-wave propagation from the M5.8 23 August 2011, Mineral, Virginia, earthquake, Present motion and deformation of the Caribbean plate: Constraints from new GPS geodetic measurements from Honduras and Nicaragua, Seismicity in the Clear Lake area, California, 1975–1983, Weak elastic anisotropy in global seismology, The 2011 Mineral, Virginia, earthquake, and its significance for seismic hazards in eastern North America—Overview and synthesis, The Hawaiian SWELL pilot experiment—Evidence for lithosphere rejuvenation from ocean bottom surface wave data, Copyright © 2020 Seismological Society of America. The magnitude 5.2 event caused widespread minor damage in the suburban areas of northeast Denver… The magnitude 5.3 tremor caused the most serious damage at Northglenn, where concrete pillar supports to a church roof were weakened, and 20 windows were broken. The magnitude-5.3 quake hit at 11:46 p.m. Monday about 9 miles southwest of Trinidad, or 180 miles south of Denver, according to the Geological Survey’s National Earthquake … In September of that year, the Army began removing fluid from the Arsenal well at a very slow rate, in hope that earthquake activity would lessen. Houses creaked and objects rattled during this magnitude 2.1 earthquake. As civil registration (birth, marriage and death records) is not a federal jurisdiction, Library and Archives Canada does not hold the civil registers and does not issue certificates. During this period on a lesser scale occurred throughout the area injection well out at the bottom feet... 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