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Soper, OK Natural Disasters and Weather Extremes

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The chance of earthquake damage in Soper is lower than Oklahoma average and is much lower than the national average. The risk of tornado damage in Soper is much lower than Oklahoma average and is much higher than the national average.

Topics:Earthquake Index Volcano Index Tornado Index Other Weather Extremes Events Volcanos Nearby Historical Earthquake Events Historical Tornado Events

Earthquake Index, #376

Soper, OK	0.06
Oklahoma	0.31
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

Soper, OK	0.0000
Oklahoma	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, #689

Soper, OK	229.79
Oklahoma	363.83
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 3,204 other weather extremes events within 50 miles of Soper, OK were recorded from 1950 to 2010. The following is a break down of these events:

Type	Count	Type	Count	Type	Count	Type	Count	Type	Count
Avalanche:	0	Blizzard:	4	Cold:	5	Dense Fog:	14	Drought:	80
Dust Storm:	2	Flood:	245	Hail:	1,465	Heat:	27	Heavy Snow:	56
High Surf:	0	Hurricane:	0	Ice Storm:	25	Landslide:	0	Strong Wind:	72
Thunderstorm Winds:	993	Tropical Storm:	0	Wildfire:	11	Winter Storm:	49	Winter Weather:	70
Other:	86

Volcanos Nearby

No volcano is found in or near Soper, OK.

Historical Earthquake Events

No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Soper, OK.

No historical earthquake events found in or near Soper, OK.

Historical Tornado Events

A total of 97 historical tornado events that had recorded magnitude of 2 or above found in or near Soper, OK.

Distance (miles)	Date	Magnitude	Start Lat/Log	End Lat/Log	Length	Width	Fatalities	Injuries	Property Damage	Crop Damage	Affected County
0.7	1960-05-04	4	34°01'N / 95°42'W	34°04'N / 95°42'W	3.40 Miles	150 Yards	0	3	250K	0	Choctaw
4.1	1983-11-22	2	34°05'N / 95°44'W		1.00 Mile	100 Yards	0	0	25K	0	Choctaw
5.7	1960-05-04	4	34°04'N / 95°42'W	34°09'N / 95°37'W	7.60 Miles	150 Yards	0	0	250K	0	Choctaw
6.5	1961-03-05	2	34°00'N / 95°50'W	34°02'N / 95°47'W	3.80 Miles	50 Yards	0	0	3K	0	Choctaw
7.7	1982-04-02	3	34°04'N / 95°57'W	34°04'N / 95°42'W	8.00 Miles	100 Yards	0	0	250K	0	Choctaw
10.5	1954-04-30	3	34°00'N / 95°31'W		1.00 Mile	150 Yards	0	12	250K	0	Choctaw
11.3	1961-05-05	3	34°01'N / 95°30'W				0	0	25K	0	Choctaw
12.2	1982-04-02	2	34°03'N / 95°29'W		0.50 Mile	30 Yards	0	1	2.5M	0	Bryan
13.5	1956-04-28	2	34°08'N / 96°04'W	34°15'N / 95°36'W	27.90 Miles	300 Yards	0	0	3K	0	Bryan
16.0	1982-05-28	2	34°13'N / 95°38'W	34°17'N / 95°34'W	6.00 Miles	100 Yards	0	0	2.5M	0	Pushmataha
17.4	1955-04-12	2	34°14'N / 95°37'W	34°18'N / 95°33'W	6.10 Miles	33 Yards	0	0	0K	0	Pushmataha
18.2	1981-05-13	4	33°46'N / 95°42'W	33°47'N / 95°33'W	8.80 Miles	400 Yards	0	30	2.5M	0	Lamar
19.2	1960-05-04	4	34°09'N / 95°37'W	34°23'N / 95°25'W	19.80 Miles	150 Yards	0	0	250K	0	Pushmataha
19.3	1982-04-02	5	34°08'N / 95°34'W	34°03'N / 95°10'W	22.00 Miles	500 Yards	0	25	2.5M	0	Choctaw
20.4	1973-05-06	2	33°48'N / 95°55'W		0.50 Mile	67 Yards	0	3	250K	0	Fannin
21.4	2000-04-23	2	34°20'N / 95°39'W	34°19'N / 95°30'W	9.00 Miles	150 Yards	0	0	250K	0	Pushmataha
		Brief Description: A F2 tornado touched down northeast of Moyers and traveled 9 miles east southeast before lifting 1 mile south of Finley. A mobile home and several outbuilding were destroyed. Some roof damage was reported to several buildings.
24.4	1981-10-13	2	33°39'N / 95°40'W	33°43'N / 95°35'W	6.60 Miles	50 Yards	0	0	25K	0	Lamar
24.5	1985-02-23	2	34°13'N / 96°05'W	34°20'N / 95°56'W	10.00 Miles	500 Yards	0	3	250K	0	Atoka
25.0	1982-04-02	2	34°02'N / 96°08'W		0.50 Mile	10 Yards	0	0	25K	0	Bryan
25.2	1985-11-30	2	34°13'N / 96°05'W	34°16'N / 96°02'W	4.00 Miles	300 Yards	0	0	250K	0	Atoka
25.3	1974-06-06	2	34°18'N / 96°00'W	34°20'N / 95°57'W	3.80 Miles	100 Yards	0	0	25K	0	Atoka
26.8	1964-04-23	2	33°39'N / 95°37'W		2.00 Miles	23 Yards	0	0	25K	0	Lamar
27.6	1964-04-23	2	33°39'N / 95°37'W	33°39'N / 95°30'W	6.60 Miles	100 Yards	0	0	25K	0	Lamar
27.9	1982-04-02	3	33°38'N / 95°51'W	33°38'N / 95°42'W	10.00 Miles	150 Yards	0	0	2.5M	0	Lamar
28.0	1990-05-03	2	33°39'N / 95°32'W		2.00 Miles	100 Yards	0	13	0K	0	Lamar
28.4	1985-05-13	2	33°37'N / 95°35'W	33°40'N / 95°30'W	4.00 Miles	77 Yards	0	8	2.5M	0	Lamar
28.6	1982-04-02	4	33°39'N / 95°38'W	33°40'N / 95°20'W	17.00 Miles	250 Yards	10	170	25.0M	0	Lamar
28.6	1956-04-03	3	34°09'N / 95°13'W		2.00 Miles	100 Yards	0	3	25K	0	Pushmataha
29.2	2000-04-23	2	34°18'N / 95°22'W	34°17'N / 95°13'W	9.00 Miles	175 Yards	0	0	25K	0	Pushmataha
		Brief Description: A F2 tornado touched down west of Cloudy and traveled just south of Cloudy through rural areas of Pushmataha county before lifting 9 miles later east southeast of Cloudy. Only tree damage was observered.
30.3	1992-05-11	2	33°54'N / 96°12'W		1.00 Mile	100 Yards	0	0	250K	0	Bryan
31.0	1974-04-21	2	33°40'N / 95°23'W		1.00 Mile	33 Yards	0	6	25K	0	Lamar
31.0	1974-05-03	2	33°40'N / 95°23'W				0	0	25K	0	Lamar
31.4	1991-03-21	2	34°18'N / 96°17'W	34°19'N / 95°59'W	19.00 Miles	400 Yards	0	6	250K	0	Atoka
32.9	1969-04-27	3	33°43'N / 95°16'W		2.00 Miles	440 Yards	0	0	25K	0	Red River
33.1	1959-10-04	2	33°48'N / 96°12'W	33°51'N / 96°14'W	4.30 Miles	200 Yards	0	2	25K	0	Bryan
33.1	2000-04-23	2	33°50'N / 95°16'W	33°53'N / 95°03'W	12.50 Miles	75 Yards	0	0	0	0	Red River
		Brief Description: Tornado occurred across farm land and wooded areas with few structures or homes present. The county sheriff, his deputy, and a farmer were talking when the tornado, which was described as a long tube, moved out of the woods to their east and crossed within several hundred yards to their north.
33.5	1957-04-02	2	33°33'N / 95°46'W				1	2	25K	0	Delta
33.7	1982-11-22	2	34°20'N / 96°09'W	34°24'N / 96°06'W	5.00 Miles	150 Yards	0	0	2.5M	0	Atoka
33.9	1996-01-17	2	33°43'N / 96°09'W	33°43'N / 96°09'W	2.50 Miles	150 Yards	0	5	150K	0	Fannin
		Brief Description: A short lived but strong tornadic circulation developed on the left side of a bow echo type thunderstorm north of Bonham. The tornado destroyed 3 mobile homes and resulted in 5 injuries to the occupants. Minor damage to homes and another mobile home also occurred.
34.1	1974-04-21	2	33°35'N / 95°27'W		0.30 Mile	33 Yards	0	0	25K	0	Lamar
34.2	1982-04-02	4	33°40'N / 95°20'W	33°41'N / 95°14'W	6.00 Miles	250 Yards	0	0	25.0M	0	Red River
34.6	1982-04-02	5	34°03'N / 95°10'W	34°01'N / 95°01'W	7.00 Miles	500 Yards	0	4	2.5M	0	Mccurtain
34.6	1992-05-11	2	34°32'N / 95°44'W	34°32'N / 95°38'W	5.00 Miles	100 Yards	0	0	25K	0	Atoka
34.8	1982-04-02	3	33°38'N / 96°17'W	33°38'N / 95°51'W	22.00 Miles	150 Yards	1	1	2.5M	0	Fannin
35.1	1957-04-02	2	33°29'N / 95°46'W	33°34'N / 95°43'W	6.50 Miles	100 Yards	1	2	25K	0	Lamar
35.8	1967-04-12	2	33°59'N / 95°06'W	34°24'N / 95°06'W	28.70 Miles	77 Yards	0	0	25K	0	Mccurtain
35.8	1992-05-11	2	34°32'N / 95°38'W	34°34'N / 95°40'W	11.00 Miles	100 Yards	0	0	25K	0	Pushmataha
36.3	2008-05-10	2	34°34'N / 95°42'W	34°33'N / 95°40'W	2.00 Miles	100 Yards	0	0	75K	0K	Atoka
		Brief Description: EVENT NARRATIVE: The tornado continued into Pushmataha county before lifting 2.75 miles WSW of Adel. In Atoka County, three houses were damaged. The roof was removed and some of the exterior walls on one well-built home were collapsed. Numerous trees were uprooted or snapped above the ground. Monetary damage were estimated. EPISODE NARRATIVE: A powerful storm system strengthened over the central Plains during the day on Saturday, drawing rich gulf moisture north into eastern Oklahoma. A surface low pressure developed with a trailing cold front that moved quickly through western Oklahoma, and a dry line extending to the east of the cold front. Isolated severe thunderstorms developed near Hughes county early in the afternoon, with large hail reported in a few locations. Later in the afternoon, supercells over eastern Oklahoma expanded southwest. One supercell developed over far eastern Atoka county, producing a tornado near Daisy and large hail. Damage was reported with the tornado, but there were no injuries. Monetary damages were estimated.
36.4	1973-03-10	2	33°34'N / 95°24'W		1.50 Miles	100 Yards	0	1	25K	0	Lamar
36.9	1953-04-14	2	34°22'N / 96°12'W		0.30 Mile	23 Yards	0	0	3K	0	Atoka
37.0	1991-04-26	2	33°38'N / 95°16'W		0.20 Mile	10 Yards	0	0	250K	0	Red River
37.0	1971-12-14	2	33°58'N / 95°06'W	34°05'N / 95°00'W	9.90 Miles	200 Yards	0	0	25K	0	Mccurtain
37.2	1957-04-02	2	33°30'N / 95°48'W				0	0	25K	0	Lamar
37.4	1974-05-25	2	33°54'N / 96°23'W	34°00'N / 96°18'W	8.50 Miles	1500 Yards	0	0	25K	0	Bryan
37.5	1972-04-20	2	33°56'N / 96°23'W	34°03'N / 96°19'W	8.90 Miles	50 Yards	0	0	25K	0	Bryan
37.7	1982-04-02	2	33°39'N / 96°10'W		1.00 Mile	50 Yards	0	0	0K	0	Fannin
37.9	1954-09-20	2	34°00'N / 96°23'W	34°03'N / 96°20'W	4.50 Miles	33 Yards	0	1	3K	0	Bryan
38.4	1991-03-21	2	34°01'N / 96°24'W	34°04'N / 96°20'W	5.00 Miles	150 Yards	0	0	250K	0	Bryan
38.7	1983-11-22	2	34°28'N / 95°16'W		2.00 Miles	100 Yards	0	0	250K	0	Pushmataha
39.0	1982-04-25	2	33°33'N / 95°21'W	33°33'N / 95°20'W	1.00 Mile	100 Yards	0	0	250K	0	Howard
39.3	1980-04-02	2	34°03'N / 96°23'W		4.00 Miles	60 Yards	0	0	25K	0	Bryan
39.7	1964-04-22	3	33°26'N / 95°51'W	33°30'N / 95°47'W	5.90 Miles	50 Yards	0	2	25K	0	Delta
39.8	1969-06-14	2	33°54'N / 96°29'W	33°59'N / 96°17'W	12.80 Miles	100 Yards	0	0	25K	0	Bryan
39.9	1982-04-02	2	33°38'N / 95°13'W	33°41'N / 95°07'W	5.00 Miles	100 Yards	0	0	25K	0	Red River
39.9	1991-04-13	2	33°38'N / 95°13'W	33°43'N / 95°05'W	12.00 Miles	100 Yards	0	0	250K	0	Red River
39.9	1982-12-23	2	34°04'N / 95°00'W		3.00 Miles	100 Yards	0	1	250K	0	Mccurtain
40.1	1971-03-12	3	33°51'N / 96°30'W	33°48'N / 96°12'W	17.60 Miles	250 Yards	0	0	250K	0	Bryan
40.2	1991-04-26	2	33°45'N / 95°05'W		0.20 Mile	10 Yards	0	0	250K	0	Red River
40.4	1957-04-02	4	33°56'N / 96°26'W	34°02'N / 96°22'W	7.90 Miles	200 Yards	3	3	250K	0	Bryan
40.5	1961-09-12	3	33°34'N / 95°16'W		0.50 Mile	300 Yards	0	0	0K	0	Red River
40.8	1981-05-13	2	34°29'N / 96°13'W	34°26'N / 96°10'W	4.50 Miles	100 Yards	0	0	3K	0	Coal
40.9	1974-05-25	2	33°30'N / 95°23'W				0	0	25K	0	Lamar
41.0	1981-05-13	2	33°32'N / 96°05'W		1.00 Mile	73 Yards	0	0	25K	0	Fannin
41.1	1999-05-04	2	33°50'N / 95°02'W	34°00'N / 94°57'W	12.80 Miles	100 Yards	0	0	0	6K	Mccurtain
		Brief Description: Numerous trees blown over or snapped. A Pecan orchard was laid to waste. This tornado moved into McCurtain county from Red River county, TX.
41.7	1973-05-06	2	33°35'N / 96°11'W		0.10 Mile	20 Yards	0	0	25K	0	Fannin
42.0	1954-06-02	2	33°24'N / 95°42'W	33°27'N / 95°37'W	5.90 Miles	1000 Yards	1	8	25K	0	Delta
42.5	1999-05-04	2	33°50'N / 95°03'W	33°51'N / 94°56'W	1.80 Miles	100 Yards	0	7	600K	0	Red River
		Brief Description: Supercells developed in unstable airmass ahead of strong upper low over central plains states. Numerous trees blown over or broken. Nine mobile homes and 1 frame home destroyed. This tornado moved into McCurtain county, OK.
42.6	1981-05-23	3	34°05'N / 96°30'W	33°59'N / 96°23'W	9.70 Miles	100 Yards	0	0	2.5M	0	Bryan
42.7	1966-04-27	4	34°17'N / 96°24'W	34°16'N / 96°22'W	2.30 Miles	300 Yards	0	0	250K	0	Atoka
42.8	1982-04-25	2	33°33'N / 95°20'W	33°34'N / 95°06'W	12.00 Miles	100 Yards	0	0	250K	0	Red River
43.2	2010-05-10	2	34°15'N / 96°25'W	34°14'N / 96°24'W	2.00 Miles	400 Yards	0	0	2.6M	0K	Johnston
		Brief Description: EVENT NARRATIVE: This tornado is labeled #N2. The tornado developed about a mile south-southeast of Coleman and moved southeast another mile, eventually traveling just into Atoka county. Several buildings, including a home, sustained major damage. Four other homes sustained at least partial damage. The U Cross Arena and Pavilion was heavily damaged, with part of the roof moved removed, steal beams on the outside of the building knocked down, and a section of the building completely destroyed. The tornado continued across the Atoka county border. This tornado moved into Atoka County. EPISODE NARRATIVE: A significant outbreak of severe thunderstorms and tornadoes affected a large part of northern, central, and southern Oklahoma. Tornadoes were most numerous across central and southern Oklahoma, with significant damage occurring over many areas. Severe thunderstorms erupted by mid afternoon across northern and western Oklahoma. Given the potent combination of ingredients in place, storms began to produce tornadoes quickly after initiation. Storm motions of 50 to 60 mph were common. During the mid afternoon hours, severe weather was confined to northern Oklahoma. It was there a long track supercell storm produced tornadoes near the Kansas border - including one rated EF3 - from near Wakita to north of Braman. The capping inversion that had delayed thunderstorm development into central Oklahoma weakened, allowing for explosive supercell development along the dry line along and west of the Interstate 35 corridor. Rapid development and intensification was common with the late afternoon storms, with storms becoming tornadic within a very short time after initiation. This round of storms would directly impact a large part of the Oklahoma City metro area at rush hour, and posed a significant threat to the area. The first tornado in this area occurred in Canadian County. During the next several hours, tornadoes were clustered around the metro area, and at times there were multiple significant damaging tornadoes occurring simultaneously. Several of the tornadoes had long tracks. Damage from the tornadoes was substantial, with numerous structures, vehicles, trees and power poles/lines significantly damaged or destroyed. One of the more intense tornadoes moved across Lake Thunderbird east of Norman destroying numerous boats. More storms developed across southwest and south central Oklahoma, and also quickly became tornadic. By 9 pm, 35 tornadoes had been reported. While the loss of three lives was tragic, the casualties could have been much higher given the storm's fast motions, their intensity, the time of day and the areas impacted. While exact monetary damage figures were not available, it is estimated that losses were in excess of $595 million. At least 450 sustained injuries, most of them minor. Unfortunately three people lost their lives. Note: The large number of injuries and tornadoes made it difficult to associate injuries with specific tornadoes. Injury numbers were included when we had confidence in the numbers. Note: The complex nature of storm evolutions and interactions made the job of classifying tornadoes difficult. This represents our best scientific assessment based on ground and aerial surveys, data from multiple radars, photographic and video evidence and anecdotal information.
43.6	2001-04-11	2	34°30'N / 96°10'W	34°36'N / 96°06'W	8.00 Miles	200 Yards	1	1	75K	0	Coal
		Brief Description: This tornado formed 4 miles southeast of Coalgate and tracked northeastward for 8 miles before crossing into northwest Atoka County at 0434 CST (See following entry for information about the Atoka County segment). The tornado then continued for another 5 miles before dissipating at 0440 CST. In Coal County, 1 fatalilty and injuries to another person occurred when a mobile home was thrown approximately 200 yards and disintegrated 4 miles east of Coalgate. In addition, a well-constructed frame home suffered severe roof damage and exterior wall damage in extreme eastern Coal County. M41MH Six tornadoes across southern Oklahoma and one tornado across western north Texas developed during the overnight hours of the 11th. The most notable tornado formed across Coal County in Oklahoma and resulted in one fatality and one injury as it destroyed a mobile home. In addition to damage produced by severe thunderstorms, sustained winds of 40 to 50 mph with gusts as high as 73 mph developed just ahead of the most frequent period of severe weather and persisted for several hours. In Tillman County, at 2330 CST on the 10th, a barn roof was damaged 3 miles east of Frederick. A barn roof was blown off, and a fence was downed 4 miles east of Frederick, and a house roof sustained minor damage 4 miles north of Frederick. Trees and power lines were downed in Ponca City in Kay County, while in Garfield County, minor but widespread damage, was sustained to trees, power poles, and numerous other structures.
43.6	1955-04-06	3	33°36'N / 96°24'W	33°35'N / 96°05'W	18.30 Miles	67 Yards	0	0	2.5M	0	Fannin
44.2	1957-05-25	2	34°16'N / 96°25'W		1.00 Mile	200 Yards	0	0	25K	0	Johnston
44.3	1970-06-11	2	34°36'N / 95°20'W				0	0	250K	0	Pushmataha
44.9	1977-04-18	2	33°23'N / 95°45'W				0	0	0K	0	Delta
45.9	1950-04-28	2	34°33'N / 96°12'W		0.80 Mile	100 Yards	0	0	25K	0	Coal
45.9	1961-07-23	2	33°57'N / 94°54'W		1.00 Mile	23 Yards	0	0	3K	0	Mccurtain
46.2	1961-05-04	2	33°28'N / 95°16'W		0.80 Mile	1000 Yards	0	0	0K	0	Red River
46.2	1951-05-09	2	34°07'N / 96°31'W	34°11'N / 96°28'W	5.40 Miles	100 Yards	0	1	25K	0	Johnston
46.7	2003-05-14	2	33°59'N / 95°05'W	33°44'N / 94°44'W	26.50 Miles	100 Yards	0	0	50K	0	Mccurtain
		Brief Description: A violent thunderstorm moved rapidly southeast across McCurtain County, OK into Bowie County, TX and Cass County, TX. This thunderstorm also produced a strong Microburst in McCurtain County southeast of Idabel, OK and again southeast of Maud, TX. Numerous trees and limbs were snapped or pushed over while several large corporate and private corn fields were ripped up. The only structure in the path of this tornado was located next to the Highway 259 bridge which crosses the Red River into Bowie County, TX.. This tornado moved into Bowie and Cass Counties, TX.
47.7	1966-04-27	4	34°19'N / 96°32'W	34°17'N / 96°24'W	7.90 Miles	300 Yards	0	2	250K	0	Johnston
47.9	1964-04-03	3	33°59'N / 96°37'W	34°05'N / 96°27'W	11.80 Miles	200 Yards	0	1	250K	0	Bryan
48.3	2001-04-11	2	34°10'N / 96°36'W	34°20'N / 96°24'W	16.00 Miles	500 Yards	0	4	2.5M	0	Johnston
		Brief Description: This tornado formed over northern portions of Lake Texoma, then tracked northeastward for 16 miles before crossing into western Atoka County. About 5 miles east of Tishomingo in Johnston County, 2 injuries, both requiring hospital care, occurred when a mobile home was lofted and deposited upside-down about 40 yards from its original location. In addition, a frame home 1 mile east of Milburn was severely damaged when the roof was completely removed. Across the remainder of the damage path in Johnston County, 3 additional mobile homes were destroyed, and 21 other structures, including 1 business and 2 churches, sustained damage. Six tornadoes across southern Oklahoma and one tornado across western north Texas developed during the overnight hours of the 11th. The most notable tornado formed across Coal County in Oklahoma and resulted in one fatality and one injury as it destroyed a mobile home. In addition to damage produced by severe thunderstorms, sustained winds of 40 to 50 mph with gusts as high as 73 mph developed just ahead of the most frequent period of severe weather and persisted for several hours. In Tillman County, at 2330 CST on the 10th, a barn roof was damaged 3 miles east of Frederick. A barn roof was blown off, and a fence was downed 4 miles east of Frederick, and a house roof sustained minor damage 4 miles north of Frederick. Trees and power lines were downed in Ponca City in Kay County, while in Garfield County, minor but widespread damage, was sustained to trees, power poles, and numerous other structures.
49.4	1951-05-09	2	34°00'N / 96°36'W	34°07'N / 96°31'W	9.40 Miles	100 Yards	0	0	25K	0	Bryan
49.6	1966-05-23	3	33°23'N / 96°04'W		2.00 Miles	100 Yards	0	5	25K	0	Hunt
49.6	1971-03-12	3	33°54'N / 96°35'W	33°51'N / 96°30'W	6.20 Miles	250 Yards	0	3	250K	0	Bryan

* 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.