Denver, Aurora Metro Area Natural Disasters and Weather Extremes
The chance of earthquake damage in Denver, Aurora Area is much higher than Colorado average and is much higher than the national average. The risk of tornado damage in Denver, Aurora Area is much higher than Colorado average and is much higher than the national average.
Earthquake Index, #40
|Denver, Aurora Area||4.07|
The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.
Volcano Index, #115
|Denver, Aurora Area||0.0002|
The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.
Tornado Index, #210
|Denver, Aurora Area||224.16|
The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.
Other Weather Extremes Events
A total of 7,247 other weather extremes events within 50 miles of Denver, Aurora Area were recorded from 1950 to 2010. The following is a break down of these events:
|Dust Storm:||0||Flood:||349||Hail:||5,088||Heat:||0||Heavy Snow:||43|
|High Surf:||0||Hurricane:||0||Ice Storm:||0||Landslide:||0||Strong Wind:||49|
|Thunderstorm Winds:||1,054||Tropical Storm:||0||Wildfire:||16||Winter Storm:||35||Winter Weather:||7|
A total of 1 volcano is found in or near Denver, Aurora Area.
|Distance (miles)||Name||Region||Latitude||Longitude||Elevation (foot)||Type||Status||Last Eruption|
|114.3||Dotsero||US-Colorado, United States||39.65||-107.03||2230||Maar||Radiocarbon||Last known eruption B.C. (Holocene)|
Historical Earthquake Events
A total of 29 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Denver, Aurora Area.
|Distance (miles)||Date||Magnitude||Depth (km)||Latitude||Longitude|
Historical Tornado Events
A total of 32 historical tornado events that had recorded magnitude of 2 or above found in or near Denver, Aurora Area.
|Distance (miles)||Date||Magnitude||Start Lat/Log||End Lat/Log||Length||Width||Fatalities||Injuries||Property Damage||Crop Damage||Affected County|
|3.0||1961-05-20||2||39°24'N / 104°52'W||2.00 Miles||67 Yards||0||2||25K||0||Douglas|
|7.1||1985-07-19||2||39°32'N / 104°52'W||0.50 Mile||40 Yards||0||0||250K||0||Douglas|
|16.0||1978-05-17||2||39°38'N / 104°45'W||0.50 Mile||33 Yards||0||0||250K||0||Adams|
|19.5||1986-06-08||2||39°43'N / 104°54'W||1.00 Mile||50 Yards||0||6||2.5M||0||Denver|
|19.7||1986-06-08||2||39°43'N / 104°51'W||39°43'N / 104°51'W||0.10 Mile||50 Yards||0||0||2.5M||0||Arapahoe|
|20.7||1988-06-15||2||39°44'N / 104°56'W||0.50 Mile||400 Yards||0||0||2.5M||0||Denver|
|20.7||1988-06-15||3||39°44'N / 104°56'W||2.50 Miles||200 Yards||0||7||25.0M||0||Denver|
|21.4||1981-06-03||2||39°43'N / 105°03'W||39°44'N / 105°02'W||0||0||2.5M||0||Jefferson|
|21.6||1981-06-03||2||39°44'N / 105°02'W||39°44'N / 105°01'W||0||0||2.5M||0||Denver|
|21.8||2009-06-15||2||39°14'N / 104°38'W||39°11'N / 104°36'W||4.00 Miles||440 Yards||0||0||100K||0K||Elbert|
|Brief Description: EVENT NARRATIVE: The tornado began 8 miles south-southwest of Elizabeth and produced minor damage to two homes. The tornado then moved southeast and intensified with EF1 and EF2 damage observed 9 miles south of Elizabeth, with substantial damage to a farm, trees, and snapped power poles. The tornado moved on a more southerly track for the next 2 miles with additional EF1 and EF2 damage 11 miles south of Elizabeth. The tornado leveled a 70-yr old barn and a nearby cinder-block shed was torn open. Major tree damage was also observed. The tornado then continued southward for another mile before lifting with some EF0 and EF1 damage 12 miles south of Elizabeth. Minor damage to another home was observed with several large trees uprooted. EPISODE NARRATIVE: Severe weather again broke out across Northeast Colorado. Three tornadoes touched down in southwest Elbert County; the strongest was rated EF2. In addition to the tornadoes, severe thunderstorms produced hail up to the size of golfballs. Damaging thunderstorm winds also downed a tree in Boulder. Other counties affected by severe thunderstorms included: Boulder, Douglas, Larimer, Lincoln and Sedgwick.|
|24.2||1983-06-04||2||39°20'N / 104°35'W||39°24'N / 104°20'W||8.00 Miles||200 Yards||0||0||250K||0||Elbert|
|24.7||1977-06-13||2||39°05'N / 104°49'W||1.00 Mile||50 Yards||0||0||250K||0||El Paso|
|26.6||1976-05-30||2||39°48'N / 104°53'W||39°50'N / 104°47'W||5.40 Miles||67 Yards||0||0||250K||0||Adams|
|27.5||1987-06-20||2||39°46'N / 104°37'W||1.00 Mile||30 Yards||0||0||0K||0||Adams|
|28.9||1975-05-18||3||39°48'N / 104°44'W||39°51'N / 104°41'W||4.10 Miles||440 Yards||0||0||0K||0||Adams|
|30.2||1981-06-03||2||39°52'N / 104°59'W||2.30 Miles||133 Yards||0||42||25.0M||0||Adams|
|30.4||1977-06-13||2||39°00'N / 105°00'W||1.00 Mile||50 Yards||0||2||250K||0||El Paso|
|31.9||1986-06-08||2||39°50'N / 104°36'W||2.00 Miles||100 Yards||0||0||0K||0||Adams|
|32.3||1987-07-02||2||39°53'N / 104°44'W||1.00 Mile||250 Yards||0||0||3K||0||Adams|
|34.8||1982-06-12||3||39°49'N / 104°32'W||39°53'N / 104°32'W||3.00 Miles||400 Yards||0||0||3K||0||Adams|
|35.3||1977-06-13||3||38°56'N / 105°01'W||38°55'N / 104°55'W||4.90 Miles||100 Yards||0||0||0K||0||El Paso|
|36.7||1988-06-05||2||39°57'N / 105°04'W||0.50 Mile||50 Yards||0||0||250K||0||Boulder|
|37.4||1996-07-13||2||39°48'N / 104°24'W||39°39'N / 104°13'W||12.00 Miles||440 Yards||0||0||220K||6.5M||Adams|
|Brief Description: A fast moving tornado ripped a 12-mile path of destruction near Strasburg, in eastern Adams County. The tornado caused extensive structural damage to several galvanized metal grain silos, farm buildings and sheds in the area. The roof of a two-story log home was completely torn off. The home received substantial damage from the wind and heavy rain that followed the tornado. Several other homes in the area sustained roof damage and a number of power poles were downed along Highway 36.|
|40.4||1988-06-05||2||40°00'N / 104°58'W||40°02'N / 104°59'W||1.00 Mile||50 Yards||0||0||250K||0||Adams|
|41.0||1979-06-24||3||38°51'N / 104°55'W||38°50'N / 104°50'W||4.30 Miles||50 Yards||0||1||250K||0||El Paso|
|41.5||1988-06-05||2||40°02'N / 104°59'W||40°02'N / 104°58'W||1.00 Mile||50 Yards||0||0||250K||0||Weld|
|42.9||1982-06-14||2||39°29'N / 104°06'W||2.00 Miles||200 Yards||0||0||0K||0||Elbert|
|43.5||1980-10-15||2||40°01'N / 105°13'W||1.50 Miles||50 Yards||0||0||25K||0||Boulder|
|44.6||1959-05-29||2||39°53'N / 104°18'W||2.00 Miles||33 Yards||0||0||25K||0||Adams|
|45.6||2004-05-10||2||39°18'N / 104°02'W||39°22'N / 104°05'W||6.00 Miles||150 Yards||0||0||0||0||Elbert|
|Brief Description: A tornado touched down and severely damaged two farmsteads. The first farmstead was struck approximately 10 miles north-northwest of Simla. One tree was knocked over by the tornado. One cow was killed, another was severely injured and had to be destroyed. An unoccupied ranch house on a neighboring farmstead, about 11.5 miles north of Simla, was also destroyed. The tornado picked up the modular home and its contents, and dumped it about 500 feet away from the farmstead. In addition, a calving shed and a two story barn built in 1925 were destroyed. A pig, lamb and dog were killed. The twister also picked up and scattered a dozen trucks, farm vehicles and cars on the farmstead.|
|47.0||1958-06-08||2||40°04'N / 104°42'W||40°06'N / 104°34'W||7.10 Miles||33 Yards||0||0||3K||0||Weld|
|49.5||2001-05-28||2||38°50'N / 104°24'W||38°50'N / 104°24'W||0.30 Mile||30 Yards||0||5||100K||0||El Paso|
|Brief Description: A slow moving supercell thunderstorm stayed over the Ellicott area of eastern El Paso county for over an hour on Memorial Day evening. For over an hour, heavy rain and large hail pelted the area. Then another thunderstorm cell merged with the supercell, causing a brief time of extreme winds and three small tornadoes. A large mesocyclone developed, and the extreme winds rotated around its northeastern quarter. All of the debris from the damaged structures was moved to the west-northwest or west. Straight-line and twisting microburst winds, in some areas causing F2 damage, damaged or destroyed nearly 100 mobile homes, many occupied. Embedded within these winds, three tornadoes occurred. One, rated F2, struck the junior-senior high school building, totally destroying nearly one half of the structure. That tornado lifted briefly and set down again about 3/4 of a mile northwest of the school building and destroyed several mobile homes. Another tornado, rated F1, occurred about one mile west of the school building, flipping a mobile home.|
* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.