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Oacoma, SD Natural Disasters and Weather Extremes

 
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The chance of earthquake damage in Oacoma is about the same as South Dakota average and is much lower than the national average. The risk of tornado damage in Oacoma is lower than South Dakota average and is lower than the national average.

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

Earthquake Index, #15

Oacoma, SD
0.20
South Dakota
0.05
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, #1

Oacoma, SD
0.0000
South Dakota
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, #218

Oacoma, SD
97.63
South Dakota
114.73
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 1,616 other weather extremes events within 50 miles of Oacoma, SD were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:19Cold:3Dense Fog:0Drought:6
Dust Storm:0Flood:47Hail:957Heat:0Heavy Snow:23
High Surf:0Hurricane:0Ice Storm:2Landslide:0Strong Wind:19
Thunderstorm Winds:484Tropical Storm:0Wildfire:2Winter Storm:12Winter Weather:21
Other:21 

Volcanos Nearby

No volcano is found in or near Oacoma, SD.

Historical Earthquake Events

A total of 2 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Oacoma, SD.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
28.11983-03-044.6544.21-99.41
7.41967-11-234.4N/A43.7-99.4

Historical Tornado Events

A total of 30 historical tornado events that had recorded magnitude of 2 or above found in or near Oacoma, SD.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
3.61971-07-24343°46'N / 99°19'W2.50 Miles300 Yards000K0Brule
9.21965-05-08243°40'N / 99°14'W43°43'N / 99°18'W4.30 Miles100 Yards0025K0Brule
10.91954-06-10243°43'N / 99°11'W1.00 Mile30 Yards0025K0Brule
13.61971-07-09343°53'N / 99°37'W020K0Lyman
17.31992-06-16344°03'N / 99°26'W2.00 Miles73 Yards0825.0M0Buffalo
18.91968-06-20243°23'N / 99°26'W43°44'N / 98°58'W33.50 Miles33 Yards000K0Gregory
19.21973-07-01243°50'N / 98°59'W0.30 Mile50 Yards0125K0Brule
21.11986-07-28243°47'N / 99°00'W43°43'N / 98°54'W6.00 Miles80 Yards00250K0Brule
22.51971-07-09344°05'N / 99°36'W000K0Lyman
28.91987-08-05244°01'N / 99°52'W1.20 Miles80 Yards00250K0Lyman
31.81971-07-03344°16'N / 99°14'W44°15'N / 99°17'W0025K0Hand
34.91971-07-03244°14'N / 98°59'W44°02'N / 98°41'W20.10 Miles30 Yards000K0Hand
35.21971-07-03244°13'N / 99°00'W44°14'N / 98°56'W2.30 Miles100 Yards0025K0Hand
35.81957-06-30243°22'N / 99°45'W0025K0Tripp
36.91986-07-28243°39'N / 98°43'W43°39'N / 98°36'W3.50 Miles80 Yards0025K0Aurora
38.22010-05-22243°22'N / 99°52'W43°22'N / 99°48'W3.00 Miles150 Yards0080K0KTripp
 Brief Description: EVENT NARRATIVE: A tornado tracked along East 3rd Street in Winner, blowing down carports, trees, and tractor-trailers. A large barn was destroyed east of Winner; the curved roof was blown off in one piece and tossed across a corral. Another machine shed was blown apart. Based on the extent of the damage, wind speeds were estimated around 75 mph through town with peak winds 95 to 115 mph. EPISODE NARRATIVE: Large hail and strong wind gusts accompanied a severe thunderstorm over southern Todd and Tripp Counties. A tornado crossed the town of Winner, causing minor damage in town and destroying two barns east of town.
38.81971-06-04243°23'N / 98°51'W43°26'N / 98°47'W4.30 Miles137 Yards0025K0Charles Mix
39.61966-06-04243°14'N / 99°26'W1.00 Mile800 Yards00250K0Gregory
40.11968-06-20243°29'N / 98°51'W43°36'N / 98°27'W21.40 Miles33 Yards000K0Charles Mix
40.21957-04-18243°15'N / 99°44'W43°19'N / 99°43'W3.80 Miles33 Yards003K0Tripp
40.31971-10-18243°13'N / 99°32'W43°15'N / 99°32'W2.30 Miles367 Yards0025K0Turner
41.01960-07-25243°55'N / 100°17'W43°55'N / 100°04'W10.40 Miles33 Yards0025K0Lyman
41.81962-05-15343°12'N / 99°24'W000K0Gregory
42.31954-08-01243°16'N / 99°28'W43°07'N / 99°16'W14.20 Miles33 Yards020K0Gregory
42.81959-05-25244°15'N / 98°46'W003K0Hand
43.41965-05-08543°00'N / 99°43'W43°26'N / 99°38'W30.10 Miles1760 Yards012.5M0Tripp
44.11965-05-08343°10'N / 99°20'W1.50 Miles20 Yards003K0Gregory
47.41965-05-08243°11'N / 99°50'W43°13'N / 99°48'W000K0Tripp
47.51992-06-30244°22'N / 99°55'W0.30 Mile30 Yards0025K0Hughes
48.42002-08-09243°07'N / 99°12'W43°07'N / 99°10'W2.00 Miles200 Yards001.0M0Gregory
 Brief Description: A tornado destroyed a church, a county highway shop, several garages, several small sheds, a mobile home, a camper, and a ten thousand bushel silo. The church was ripped from its foundation, with debris and contents blown over a wide area. Tree damage includes uprooted trees, and power lines were blown down. A resulting power outage lasted for several hours. Windows in many homes and some businesses were broken. The Herrick Honey House was severely damaged, and a honey truck was tipped over. Holes were punched in the walls of some houses by flying debris.


* 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.


 
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