Local Data Search

 
USA.com / Tennessee / Knoxville Area / Natural Disasters and Weather Extremes

Knoxville Metro Area Natural Disasters and Weather Extremes

 

The chance of earthquake damage in Knoxville Area is higher than Tennessee average and is lower than the national average. The risk of tornado damage in Knoxville Area is much lower than Tennessee average and is much lower than the national average.

Topics:Earthquake IndexVolcano IndexTornado IndexOther Weather Extremes EventsVolcanos NearbyHistorical Earthquake EventsHistorical Tornado Events

Earthquake Index, #86

Knoxville Area
1.27
Tennessee
0.56
U.S.
1.81

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, #129

Knoxville Area
0.0000
Tennessee
0.0000
U.S.
0.0023

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, #675

Knoxville Area
63.77
Tennessee
175.35
U.S.
136.45

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 13,798 other weather extremes events within 50 miles of Knoxville Area were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:1Cold:58Dense Fog:32Drought:91
Dust Storm:0Flood:1,350Hail:3,350Heat:43Heavy Snow:153
High Surf:0Hurricane:9Ice Storm:38Landslide:2Strong Wind:101
Thunderstorm Winds:7,789Tropical Storm:10Wildfire:6Winter Storm:102Winter Weather:93
Other:570 

Volcanos Nearby

No volcano is found in or near Knoxville Area.

Historical Earthquake Events

A total of 5 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Knoxville Area.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
9.51973-11-304.7335.8-83.96
20.71984-02-143.61036.13-83.74
21.21969-07-133.5N/A36.1-83.7
21.71982-09-243.5835.68-84.25
41.91977-07-273.5735.42-84.42

Historical Tornado Events

A total of 26 historical tornado events that had recorded magnitude of 2 or above found in or near Knoxville Area.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
2.11965-04-15235°52'N / 84°05'W35°57'N / 84°00'W7.40 Miles200 Yards062.5M0Knox
7.71953-05-02236°02'N / 84°04'W0.80 Mile100 Yards003K0Anderson
10.31993-02-21336°01'N / 84°15'W36°06'N / 83°58'W10.00 Miles150 Yards035.0M0Knox
 Brief Description: The tornado started near Oak Ridge, moved through the Bull Run Steam Plant and went through the town of Claxton. Fifty homes were damaged and six mobile homes were destroyed. Two business were destroyed and another 10 were damaged including a weapons plant. Twelve electric transmission towers were knocked down.
11.51974-04-03235°47'N / 83°55'W0.50 Mile50 Yards02250K0Blount
19.81974-04-03235°40'N / 84°10'W35°40'N / 84°09'W02250K0Loudon
20.02002-11-10236°12'N / 84°12'W36°12'N / 84°05'W5.50 Miles75 Yards00213K0Anderson
 Brief Description: An F2 tornado produced a damage path 75 yards wide for a distance of 5.5 miles from near Briceville to Medford. The Medford community received the brunt of the damage, which was concentrated along Highway 25W, Leinart Road, Bryant Circle and Old and New Clear Branch roads. In all, 32 homes were damaged while 3 were totally destroyed. In addition, 9 mobile homes were damaged.
21.21955-03-25236°01'N / 84°25'W36°12'N / 84°14'W16.30 Miles1760 Yards003K0Jefferson
22.62010-04-25235°37'N / 84°08'W1.00 Mile100 Yards0020K0KBlount
 Brief Description: EVENT NARRATIVE: The NWS storm survey determined a tornado tracked from Loudon County for one-half of a mile along Thompson Bridge road. It was classified as an EF2 tornado with winds estimated at 110 mph with a path width of 100 yards. EPISODE NARRATIVE: A strong low pressure system along with an associated cold front tracked across the area triggering thunderstorms during the evening and overnight hours. A tornado touched down in eastern Monroe County, then tracked across southern Loudon County and finally dissipated in western Blount County. Another weak tornado touched down briefly in Polk County.
23.11984-05-07235°44'N / 84°21'W1.00 Mile70 Yards00250K0Loudon
29.52002-11-10336°02'N / 84°36'W36°03'N / 84°27'W8.30 Miles300 Yards728968K0Morgan
 Brief Description: A strong F3 tornado (with wind speeds estimated around 175 mph) touched down 4.4 miles south of Wartburg in the Mossy Grove community killing 5 people and injuring 28. This tornado then struck Joyner at 8:40 P.M. killing two more people for a total of 7 dead. The tornado damaged 63 homes while destroying 24 others. In addition, 18 mobile homes were damaged and 12 others were destroyed. M47PH, F36PH, F73PH, M55VE, F1VE, M45PH, F93PH
31.51993-02-21235°47'N / 84°34'W35°45'N / 84°31'W10.00 Miles100 Yards00500K0Blount And Loudon
 Brief Description: The tornado that went through Loudon County continued across Blount County through the town of Friendsville and ending just west of Maryville. One large home was destroyed and several other were damaged. Numerous trees were snapped.
34.11974-04-03235°31'N / 84°21'W1.00 Mile200 Yards00250K0Monroe
36.72009-05-08236°21'N / 84°25'W5.00 Miles200 Yards0090K0KScott
 Brief Description: EVENT NARRATIVE: An EF2 tornado with a maximum wind speed of 135 miles an hour occurred around five miles southeast of Huntsville. The tornado initially touched down just west of the Fairview community with a maximum wind speed of 90 mph (EF-1) and a width of 100 yards. The tornado continued along an east path and increased in size and intensity to an EF-2 with a maximum wind speed at 135 mph and a width of 200 yards. Several large hardwood trees were snapped off near trunk level and a free standing cell phone tower was collapsed and twisted by the tornado winds. Extensive damage occurred in a concentrated path at least 80 yards in length at the 135 mph EF-2 level. The tornado continued east and finally weakened to an EF-1 with a maximum wind speed of 100 mph as it dissipated at the foothill of Gray Mountain. At least seven homes suffered minor to moderate wind damage along the 4.5 mile path of the tornado. EPISODE NARRATIVE: A highly organized mesoscale convective vorticity maximum with strong low to mid tropospheric flow coupled with moderate instability resulted in the development of discrete supercellular thunderstorms. These storms produced a long-lived tornado across Northeast Tennessee late in the afternoon and another long duration tornado across Southwest Virginia later in the evening.
40.81974-04-03336°17'N / 84°37'W36°22'N / 84°30'W8.60 Miles350 Yards050K0Scott
42.01974-04-03336°15'N / 84°40'W36°17'N / 84°37'W3.60 Miles350 Yards0625K0Morgan
43.21974-04-03235°20'N / 83°49'W35°23'N / 83°35'W13.60 Miles33 Yards003K0Swain
43.82009-05-08236°27'N / 83°34'W2.00 Miles100 Yards000K0KClaiborne
 Brief Description: EVENT NARRATIVE: An EF-2 tornado with maximum wind speed of 110 miles an hour occurred around five miles southwest of Tazewell. The tornado initially touched down along Cole Road and quickly produced 110 mph winds. It lifted the roof off of a home on Cole Road moved east across the road and moved east across the road and destroyed two large wooden barns carrying debris up to a half mile away. Several trees were also snapped off at mid trunk level. The tornado continued in a 2.2 mile path and dissipated near Neely Road. EPISODE NARRATIVE: A highly organized mesoscale convective vorticity maximum with strong low to mid tropospheric flow coupled with moderate instability resulted in the development of discrete supercellular thunderstorms. These storms produced a long-lived tornado across Northeast Tennessee late in the afternoon and another long duration tornado across Southwest Virginia later in the evening.
43.91974-04-03235°16'N / 83°59'W35°20'N / 83°49'W10.50 Miles33 Yards211250K0Graham
44.71976-02-18235°57'N / 83°13'W1.00 Mile33 Yards0102.5M0Cocke
46.81963-03-19235°27'N / 84°39'W35°29'N / 84°36'W3.60 Miles200 Yards0125K0Mcminn
48.11974-04-08335°26'N / 84°37'W2.00 Miles440 Yards01250K0Mcminn
49.01953-05-02435°31'N / 84°45'W35°32'N / 84°43'W1.90 Miles33 Yards000K0Mcminn
49.21980-04-28235°15'N / 84°20'W35°16'N / 84°17'W3.30 Miles50 Yards01250K0Monroe
49.21952-02-29235°18'N / 84°40'W35°27'N / 84°28'W15.30 Miles587 Yards00250K0Mcminn
49.51988-05-09336°36'N / 83°45'W36°36'N / 83°39'W5.00 Miles500 Yards11525.0M0Bell
49.71974-04-03336°29'N / 84°36'W36°35'N / 84°24'W13.00 Miles400 Yards021250K0Scott


* 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.


 
The USA.com website and domain are privately owned and are not operated by or affiliated with any government or municipal authority.
© 2018 World Media Group, LLC.