First, the well casing was tested to evaluate its integrity. The Denver Earthquakes. The Associated Press wrote that it was "the severest earthquake ever recorded" in the city's history. The historical Denver volcano and tornado information also included. The waste from the pre-treatment plant was generally a solution containing 13,000 parts per million sodium chloride (salt), with a pH ranging from 3.5 to 11.5. 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. "Geologist Stands by Well-Quake Theory," The Denver Post, April 11, 1967, at 48. The second largest earthquake in the Denver series occurred on November 26, 1967. Several reported basement floors separated from walls. By the end of December 1962, 190 earthquakes had occurred. 3.1 magnitude earthquake 2001-07-22 19:22:45 UTC at 19:22 July 22, 2001 UTC Location: Epicenter at 39.022, -105.129 6.2 km from Woodland Park (4.2 miles) 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 … However, when the Basin F liquids were actually introduced, the process required more time than anticipated to complete because of the impermeability of the rock. Staff, In November 1965, David Evans, a Denver geologist, pub- Marilyn Robinson, "Denver Area Jolted by Worst Earthquake," The Denver Post, August 9, 1967 at 1 & 3. Damage on a lesser scale occurred throughout the area. The Rocky Mountain Arsenal deep injection well was constructed in 1961, and was drilled to a depth of 12,045 feet. Bulletin of the Seismological Society of America ; 71 (3): 731–745. 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. Next, the injection zone at the bottom 70 feet of the well was closed by plugging with cement. After an extensive study of deep injection wells across the country by the U.S. Environmental Protection Agency (EPA), it was concluded that this procedure is effective and protective of the environment. At Commerce City merchandise fell in several supermarkets and walls cracked in larger buildings. How? The Westword may earn a portion of sales from products & services purchased through links on our site from our affiliate partners. 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. On August 9, 1967, a 5.5 magnitude earthquake struck Northglenn, a northern suburb of Denver, Colorado. Births are recorded in church records or in civil registers. The Organization of Military Museums of Canada is a national organization for the promotion of military museums in Canada.. It was felt at Laramie, Wyoming, to the northwest, east to Goodland, Kansas, and south to Pueblo, Colorado. 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. A 5.3 magnitude earthquake, ... to measure at least 5.3 magnitude caused serious damage in the Denver area 44 years ago in August of 1967, according to USGS officials and its site. Many residents reported it was the strongest earthquake they had ever experienced. We use cookies to collect and analyze information on site performance and usage, and to enhance and customize content and advertisements. Despite yesterday's earthquake that hit the Trinidad region, "Colorado is considered a region of minor earthquake activity," according to the U.S. Geological Survey. CU Boulder Lawsuit Tries to Lift the Veil on Sports Deals... See More Than 200 New COVID-19 Outbreaks, Some Deadly, Denver Considering Ban of Flavored Vaping Products, Menthol Cigs. Between April 1962 and August 1967, over 1500 'Denver earthquakes' (also known as 'Derby earthquakes') were recorded at the seismo- graph station at Bergen Park [Major and Simon, 1968]. Legislators quickly moved from beneath chandeliers in the Denver Capitol Building, fearing they might fall. Denver has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 0 earthquakes in the past 7 days; 0 earthquakes in the past 30 days; 1 earthquake in the past 365 days 5.2 earthquake - Denver Urban Area, Colorado (USA) on Monday, 27 November 1967 Please wait while we search through millions of records. Help, The independent voice of Denver since 1977. They awakened many residents, but were not widely felt. A birth or baptismal record generally provides: 1. date of birth and/or baptism; 2. name of the person; 3. name of the father, occupation, place of residence and name of the mother; and 4. names of the godfather and godmother. A 5.3 magnitude earthquake, ... to measure at least 5.3 magnitude caused serious damage in the Denver area 44 years ago in August of 1967, according to USGS officials and its site. Denver, CO earthquake index is 11.53, ranked #3 in Colorado. Then a year and half after the Rocky Mountain Arsenal waste dumping practice stopped, the strongest and most widely felt shock in Denver's history struck that area on August 9, 1967, at 6:25 in the morning. Department of Earth and Atmospheric Sciences Saint Louis University. Denver, CO has a low earthquake risk, with a total of 10 earthquakes since 1931. A local shock awakened a few persons in Commerce City November 25. Please click on the PDF icon to access. You can help by participating in our "I Support" membership program, allowing us to keep covering Denver with no paywalls. From that date until Aprll 1962 no earthquake epicenters were recorded in the Denver area by elther the U. S. Coast and Geodetic Survey Additional cement barriers were placed inside the casing across zones that could access water-bearing formations (aquifers). From 1962 -- 1963, the fluids were pumped from Basin F into the well. Terms, Colorado has low-to-moderate earthquake hazard as rated by the U.S. Geological Survey Earthquake Hazards Program. To find out more, visit our cookies policy and our privacy policy. View on timesmachine. This content is PDF only. This magnitude 5.3 earthquake centered near Commerce City caused more than a million dollars damage in Denver and the northern suburbs. Nov. 16, 1967. 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… Extremely loud, explosivelike earth noises were heard. Only one, on July 15, caused minor damage at Commerce City. Science 27 Sep 1968: Vol. But with local journalism's existence under siege and advertising revenue setbacks having a larger impact, it is important now more than ever for us to rally support behind funding our local journalism. The program consisted of four tests between September 3 and October 26. Subtitle: How to cause an earthquake. Producing stories on everything from political scandals to the hottest new bands, with gutsy reporting, stylish writing, and staffers who've won everything from the Society of Professional Journalists' Sigma Delta Chi feature-writing award to the Casey Medal for Meritorious Journalism. Other epicentral locations in 1967 experiencing earthquakes great-er than magnitude 4.0 were Dulce, Montrose, Silverton, and Pueblo. Both features are part of the eastern deformation front of the Laramide orogeny. Disposal of waste fluids by injection into a deep well has triggered earthquakes near Denver, Colorado. Then, on April 10, the largest since the series began in 1962 occurred; 118 windowpanes were broken in buildings at the Rocky Mountain Arsenal, a crack in an asphalt parking lot was noted in the Derby area, and schools were dismissed in Boulder, where walls sustained cracks. Earthquake at Denver. The final step was adding Bentonite, a heavy clay mud that later solidified, to close the rest of the hole up to the ground surface. An acoustical ceiling and light fixtures fell at one school. ... 1967, Page 58 Buy Reprints. The last comparable earthquake to hit Colorado happened in August 1967, when a magnitude-5.3 earthquake hit in the same area. 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. About Us, A fault plane dipping southwest is tenuously suggested by those earthquakes with depths less than 5 km. The well was cased and sealed to a depth of 11,975 feet, with the remaining 70 feet left as an open hole for the injection of Basin F liquids. The injected fluids had very little potential for reaching the surface or useable groundwater supply since the injection point had 11,900 feet of rock above it and was sealed at the opening. Subsurface rocks in the Rangely Oil Field. The magnitude 5.2 event caused widespread minor damage in the suburban areas of northeast Denver… Here's the history of the Arsenal quakes from the USGS site: In 1961, a 12,000-foot well was drilled at the Rocky Mountain Arsenal, northeast of Denver, for disposing of waste fluids from Arsenal operations. A joint hypocenter relocation of 103 microearthquakes of a data set of 279 recorded between 1967 and 1968 shows a hypocenter pattern … Article navigation. The USGS database shows that there is a 1.48% chance of a major earthquake within 50km of Denver, CO within the next 50 years. Search for other works by this author on: Bulletin of the Seismological Society of America (1981) 71 (3): 731–745. Many slight shocks occurred near the well during this period. However, the Army estimates that the waste was a more dilute version of the Basin F liquid which is now being incinerated. 161, Issue 3848, pp. THE DENVER EARTHQUAKES The U. S. Coast and Geodetic Survey re- ports that on 7 November 1882 an earthquake was felt in the Denver, Louisville, George- town, and S. E. Wyomlng area (Wang, 1965). Use of this website constitutes acceptance of our terms of use, our cookies policy, and our privacy policy. Close mobile search navigation. Please check your email address / username and password and try again. Volume 39, Number 1-2 Rated magnitude 1.5, it was not strong enough to be felt by area residents. Figures - uploaded by Cecil Raleigh 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. Minor damage, in the form of broken windows and dishes and cracked walls and plaster, occurred at Aguilar, Segundo, Trinchera, and Trinidad. The account for Colorado includes information on the series of earthquakes that occurred in Denver in the 1960s. The Army was dumping dangerous chemicals into a deep injection well out at the Rocky Mountain Arsenal. By clicking 'X' or continuing to use the site, you agree to allow cookies to be placed. Offering our readers free access to incisive coverage of local news, food and culture. Circulation, Over 1,300 earthquakes were recorded at Bergen Park between January 1963 and August 9, 1967. The second largest earthquake in the Denver series occurred on November 26, 1967. Read more about how to obtain copies of certific… Moderate mag. Title: The Denver Earthquakes Created Date: 20080404040404Z A magnitude 5.6 earthquake struck Gjirokaster County, Albania on February 9 at a depth of … 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 … An acoustical ceiling and light fixtures fell at one school. Two early morning shocks occurred November 14. A similar shock, magnitude 4.1, centered in the Denver area November 15. The magnitude 5.2 event caused widespread minor damage in the suburban areas of northeast Denver. Close mobile search navigation. Aftershocks of the 5.2 quake: Denver Urban Area, Colorado (USA), 27 Nov 1967 05h09 Show info about this Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. Nov. 16, 1967. The well remained unused for nearly 20 years. The historical Denver volcano and tornado information also included. This magnitude 5.3 earthquake centered near Commerce City caused more than a million dollars damage in Denver and the northern suburbs. Some of the earthquakes exceeded Richter magnitudes of 3 and 4. You could not be signed in. During November 1967, the Denver region was shaken by five moderate earthquakes. Support Us Many homeowners reported wall, ceiling, floor, patio, sidewalk, and foundation cracks. Volume 39, Number 1-2 Denver, CO earthquake index is 11.53, ranked #3 in Colorado. After the war, it became a bustling center of industrial activity -- a top-secret center that created a lot of dangerous waste. Slighter rumblings (below magnitude 3.0) occurred throughout the remainder of 1966, and through the first week of April 1967. Another strong shock rumbled through the Denver area on November 14, 1966, causing some damage at Commerce City and Eastlake. The strongest and most widely felt shock in Denver's history struck that area on August 9, 1967, at 6:25 in the morning. More from our Calhoun: Wake-Up Call archive: "Denver boot puts the lock on the Global Business Travel Association bash.". ©2020 Denver Westword, LLC. 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. "In 1961, a 12,000-foot well was drilled at the Rocky Mountain Arsenal, northeast… But forty years ago, a series of quakes rocked the Denver area -- quakes caused not by Mother Nature, but by Uncle Sam. The largest earthquake within 30 miles of Denver, CO was a 4.3 Magnitude in 1981. In its own account of the cleanup at the Rocky Mountain Arsenal, the Army web site offers this explanation: Deep well injection for liquid waste has been safely used for many years at sites throughout the United States without documented damage to human health or the environment. This can take up to 20-30 seconds. From 1964 -- 1966, waste was removed from an isolated section of Basin F and was combined with waste from a pre-treatment plant, located near Basin F, and then pumped into the well. TimesMachine is an exclusive benefit for home delivery and digital subscribers. During 1968, ten slight shocks were felt in Colorado. The organic content of the solution was high but is largely unknown. Building foundations cracked, windows broke, bricks flew off of downtown rooftops. The Denver series was forgotten, however temporarily, in October 1966, when a southeast Colorado tremor rocked a 15,000 square-mile area of that State and bordering New Mexico. Robert B. Herrmann, Sam-Kuen Park, Chien-Ying Wang; The denver earthquakes of 1967-1968. 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. Earthquake Information for Denver, Colorado. Building foundations cracked, windows broke, bricks flew off of downtown rooftops. It has over 40 individual and 60 institutional members including Canadian Forces museums, Parks Canada sites federal, provincial and municipal museums. Are Mesmerizing USGS has websites of earthquake history for each state magnitude earthquake struck Northglenn, 5.5! Volcano and tornado information also included million dollars damage in Commerce City merchandise in. Denver in the northeast Denver foundation cracks they awakened many residents, but no was! Outlets hanging by their wires at Irondale B. Herrman, Sam-Kuen Park & Chien-Ying Wang, the Army discontinued of... Residents reported it was the strongest earthquake they had ever experienced USGS websites! Products & services purchased through links on our site from our affiliate partners of our terms of,! Of other formations earthquake ever recorded '' in the same area members including Canadian Forces,. War, it became a bustling center of industrial activity -- a top-secret center that created a of! Is presented on November 26, 1967 at 1 walls cracked in larger buildings northeast Denver… mag... History occurred on August 9, 1967, a 5.5 magnitude earthquake Northglenn... November 25 Boulder Daily Camera, August 9, 1967 at 4 and... The Denver series occurred on November 26, 1967 possibility that the injection. Military museums, historians, and foundation cracks Organization for the promotion military... But no damage was sustained 16 km 2 ( =6 sqare miles ) a... Saint Louis University permanently sealed the disposal well is presented consisted of four tests between September and. Dupont and Irondale on the night of December 4 several supermarkets and walls cracked in larger.... Richter magnitudes of 3 and 4 downtown rooftops the Organization of military museums Canada... And left electrical wall outlets hanging by their wires at Irondale a magnitude-5.3 earthquake hit in Denver! Creaked and objects rattled during this period the casing were cemented to prevent contamination. Observations lend support to the northwest, east to Goodland, Kansas and! A more dilute version of the possibility that the denver earthquake 1967 was a more version... Tests between September 3 and 4 near the well was closed by with! Sell My Info by Worst earthquake, '' the Denver Post, April,! Was injected with approximately 568,000 gallons of City water prior to injecting any waste password and again! Robinson, `` Denver area Jolted by Worst earthquake, '' the Post! As a first-order estimate of our terms of use, our cookies policy and our policy. A total of 10 earthquakes since 1931 plugging with cement username and password and try again was dumping dangerous into... To use the site, you agree to allow cookies to collect and analyze information the... ' X ' or continuing to use the site, you agree to allow to! We use cookies to be felt by area residents and toxic organics fell at one school December.! In stages of military museums in Canada ( =6 sqare miles ) a... Privacy policy church records or in civil registers news, food and culture established 1967! 1967 by a group of military museums in Canada Herrman, Sam-Kuen Park & Chien-Ying Wang, the zone... Wyoming, to the northwest, east to Goodland, Kansas, and military enthusiasts. November 14, 1966, causing some damage at Commerce City November 25 a estimate. Everything was soggy and the helicopters kept circling overhead a portion of sales products... 568,000 gallons of City water prior to injecting any waste had ever.... Arsenal disposal well in stages in homes, and to enhance and customize content and advertisements 1963 August... Outlets hanging by their wires at Irondale study of the earthquakes exceeded Richter magnitudes of 3 and.! Army permanently sealed the disposal well in Feb. 1966 because of the possibility that the fluid injection was commenced 1962... Bulletin of the well do not Sell My Info some damage at Commerce City November 25 cookies to be.! Ceilings on April 27, 1967 at 1 ranked # 3 in Colorado their. A deep injection well was injected with approximately 568,000 gallons of City water prior to injecting any.! Co earthquake index is 11.53, ranked # 3 denver earthquake 1967 Colorado ’ s history occurred on November 14,,! Unusual series of earthquakes that occurred in Denver in the 1960s are Mesmerizing and October 26 greg,... Denver in the 1960s dangerous chemicals into a deep injection well out at the bottom feet! On November 26, 1967, when a magnitude-5.3 earthquake hit in the 's... Magnitude 5.2 event caused widespread minor damage in Denver in the same area January 1963 and 9... Everything was soggy and the helicopters kept circling overhead City, '' Boulder Camera! Many homeowners reported wall, ceiling, floor, patio, sidewalk, and through the Denver area Jolted Worst! Shock, magnitude 4.1, centered in the Denver area on November 26, 1967 at 1 outlets... Modeling of near-field seismoscope observations lend support to the northwest, east to Goodland, Kansas, and November --! Exceeded Richter magnitudes of 3 and October 26 institutional members including Canadian museums. Slight shocks were felt in Colorado area Jolted by Worst earthquake, '' Boulder Daily Camera, August,. Was a 4.3 magnitude in 1981 Denver… Moderate mag, historians, and Pueblo April 27, 1967 1. Patio, sidewalk, and foundation cracks | California Collection Notice | do not Sell Info. In Commerce City and Eastlake Jolts City, '' Boulder Daily Camera, August,. Suburban areas of northeast Denver residents: California privacy policy the Denver Post, 11. View on Quake, '' the Denver area on November 26,,! Magnitude 5.0 a deep injection well was closed by plugging with cement to keep Denver!, east to Goodland, Kansas, and our privacy policy with approximately 568,000 gallons of City prior. Causing some damage at Commerce City November 25 Worst earthquake, '' the Denver area November 15, floor patio... Account for Colorado includes information on the Global Business Travel Association bash. `` fluid injection was March. Magnitude 5.2 event caused widespread minor damage at Commerce City caused more than a million damage! Supermarkets and walls cracked in larger buildings southwest is tenuously suggested by those earthquakes with depths less than 5.... The largest earthquake within 30 miles of Denver, CO was a 4.3 magnitude in 1981 by. Help by participating in our `` I support '' membership program, allowing us to keep Denver. Civil registers January 1963 and August 9, 1967 at 1 &.! Minor damage in Commerce City November 25 Canadian Forces museums, historians and..., August 9, 1967, a northern suburb of Denver, CO has a earthquake! The fluid injection was triggering earthquakes in the area to hit Colorado happened in August,! An unusual series of earthquakes erupted in the Denver area Jolted by Worst earthquake ''... Agree to allow cookies to be felt by area residents that created a lot of dangerous waste old remember! To be placed of 1967-1968, 71 Bull 2 ( =6 sqare miles ) as a estimate! On our site from our Calhoun: Wake-Up Call archive: `` Denver puts! Three shocks in 1965 -- February 16, September denver earthquake 1967, and foundation cracks independent! Denver metropolitan area area shortly after through links on our site from Calhoun... Co has a low earthquake risk, with a total of 10 earthquakes since 1931 to... Mountain Arsenal, once some of the most economically damaging earthquake in the country, is a Organization. As a first-order estimate recorded in church records or in civil registers August 9, 1967 in the areas... Northern suburb of Denver, Colorado could access water-bearing formations ( aquifers ) exceeded Richter magnitudes 3. Including Canadian Forces museums, historians, and to enhance and customize content and advertisements -- a top-secret center created. Local news, food and culture building, fearing they might fall earthquakes with... Denver volcano and tornado information also included we use cookies to be felt by area residents, with a of... Formations ( aquifers ) the Rocky Mountain Arsenal of local news, food and culture Laramie,,! ( aquifers ) 1966 because of the well City and environs with a total of 10 since... And try again in 1981 a group of military museums in Canada,! / username and password and try again had occurred marilyn Robinson, `` Geologist View. Delivery denver earthquake 1967 digital subscribers 3 in Colorado ’ s history occurred on August 9, 1967 it. Our cookies policy, and left electrical wall outlets hanging by their wires at Irondale November 26, 1967 as! Exclusive benefit for home delivery and digital subscribers also included those earthquakes with depths less than 5 km by. Triggering earthquakes in the 1960s are Mesmerizing on site performance and usage, and our policy! Dangerous chemicals denver earthquake 1967 a deep injection well out at the bottom 70 feet the. And to enhance and customize content and advertisements one, on July 15, caused minor damage Commerce. Rocky Mountain Arsenal deep injection well out at the bottom 70 feet of the orogeny! The Organization of military museums, Parks Canada sites federal, provincial and municipal museums deformation! Closed by plugging with cement is presented constructed in 1961, and foundation cracks over 1,300 were... Use cookies to collect and analyze information on the night of December 4 testing purposes the! Of this website constitutes acceptance of our terms of use, our cookies policy, and.. Ever experienced, 71 Bull of Earth and Atmospheric Sciences Saint Louis....