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Geismar, LA Natural Disasters and Weather Extremes

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Weather | Natural Extremes | Air Quality | Environmental Watch

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The chance of earthquake damage in Geismar is about the same as Louisiana average and is much lower than the national average. The risk of tornado damage in Geismar is lower than Louisiana average and is 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, #26

Geismar, LA	0.11
Louisiana	0.03
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

Geismar, LA	0.0000
Louisiana	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, #425

Geismar, LA	192.81
Louisiana	235.86
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 1,609 other weather extremes events within 50 miles of Geismar, LA 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:	0	Cold:	4	Dense Fog:	0	Drought:	15
Dust Storm:	0	Flood:	124	Hail:	276	Heat:	5	Heavy Snow:	3
High Surf:	0	Hurricane:	7	Ice Storm:	8	Landslide:	0	Strong Wind:	6
Thunderstorm Winds:	966	Tropical Storm:	8	Wildfire:	0	Winter Storm:	2	Winter Weather:	2
Other:	183

Volcanos Nearby

No volcano is found in or near Geismar, LA.

Historical Earthquake Events

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

No historical earthquake events found in or near Geismar, LA.

Historical Tornado Events

A total of 61 historical tornado events that had recorded magnitude of 2 or above found in or near Geismar, LA.

Distance (miles)	Date	Magnitude	Start Lat/Log	End Lat/Log	Length	Width	Fatalities	Injuries	Property Damage	Crop Damage	Affected County
7.4	1950-03-19	2	30°06'N / 91°00'W		1.00 Mile	50 Yards	0	0	25K	0	Ascension
7.4	1965-01-22	2	30°06'N / 91°00'W		1.00 Mile	267 Yards	0	0	250K	0	Ascension
7.4	1976-01-25	2	30°06'N / 91°00'W		1.10 Miles	33 Yards	0	7	2.5M	0	Ascension
11.2	1969-04-12	3	30°12'N / 90°54'W	30°17'N / 90°45'W	10.70 Miles	100 Yards	0	1	250K	0	Ascension
13.0	1965-06-27	2	30°21'N / 91°09'W		0.50 Mile	33 Yards	0	0	25K	0	East Baton Rouge
14.3	1969-12-25	3	30°08'N / 91°21'W	30°11'N / 91°08'W	13.50 Miles	50 Yards	0	1	25K	0	Iberville
14.6	1977-04-20	2	30°25'N / 90°59'W		0.20 Mile	67 Yards	0	1	250K	0	East Baton Rouge
15.1	1967-05-01	2	30°05'N / 91°13'W		1.00 Mile	50 Yards	0	1	25K	0	Iberville
15.8	1975-05-08	2	30°25'N / 91°11'W	30°24'N / 91°05'W	6.20 Miles	50 Yards	0	0	0K	0	East Baton Rouge
15.8	1982-01-30	2	29°59'N / 91°04'W		3.00 Miles	10 Yards	0	1	25K	0	Assumption
17.8	1974-01-19	2	29°57'N / 91°02'W		0.30 Mile	27 Yards	0	0	3K	0	Assumption
18.1	1983-01-31	2	30°23'N / 91°14'W		0.50 Mile	33 Yards	0	0	25K	0	West Baton Rouge
18.6	1987-02-15	2	29°58'N / 91°12'W	30°00'N / 91°10'W	3.00 Miles	173 Yards	0	4	250K	0	Assumption
18.9	1957-10-23	2	29°56'N / 91°06'W	29°56'N / 90°55'W	11.00 Miles	100 Yards	0	0	25K	0	Assumption
19.8	1958-11-14	2	30°28'N / 91°09'W		2.00 Miles	17 Yards	0	0	25K	0	East Baton Rouge
20.4	1971-09-16	3	30°27'N / 91°02'W	30°33'N / 91°04'W	7.30 Miles	83 Yards	0	3	2.5M	0	East Baton Rouge
20.7	1973-04-26	3	30°30'N / 91°05'W		0.30 Mile	70 Yards	0	0	25K	0	East Baton Rouge
20.8	1964-10-03	2	29°55'N / 91°06'W		1.50 Miles	100 Yards	0	0	25K	0	Assumption
21.0	1972-05-12	2	30°08'N / 91°21'W		1.00 Mile	100 Yards	0	0	25K	0	Iberville
23.9	1989-06-08	2	30°31'N / 91°11'W	30°33'N / 91°06'W	6.00 Miles	60 Yards	0	58	2.5M	0	East Baton Rouge
24.7	1989-06-08	2	30°31'N / 91°15'W	30°31'N / 91°11'W	3.50 Miles	60 Yards	0	2	2.5M	0	West Baton Rouge
25.4	1989-06-08	2	30°23'N / 91°24'W	30°26'N / 91°20'W	5.00 Miles	77 Yards	0	0	2.5M	0	West Baton Rouge
25.8	1973-09-12	2	29°50'N / 91°05'W	29°50'N / 90°59'W	6.20 Miles	50 Yards	0	3	250K	0	Assumption
27.3	1973-12-04	2	30°28'N / 91°10'W	30°42'N / 90°34'W	39.10 Miles	80 Yards	0	0	2.5M	0	East Baton Rouge
28.1	1989-06-08	2	30°21'N / 91°29'W	30°23'N / 91°24'W	5.00 Miles	77 Yards	2	30	2.5M	0	Iberville
29.5	1992-08-25	3	30°04'N / 90°27'W	30°07'N / 90°37'W	9.00 Miles	150 Yards	2	32	25.0M	0	St. John The Baptist
29.7	1961-11-22	2	30°05'N / 90°32'W		2.00 Miles	50 Yards	0	3	25K	0	St. John The Baptist
30.2	1953-02-06	3	30°29'N / 90°42'W	30°30'N / 90°33'W	9.10 Miles	400 Yards	2	21	2.5M	0	Livingston
30.3	1961-11-13	2	30°36'N / 91°10'W	30°39'N / 91°10'W	3.40 Miles	50 Yards	0	1	250K	0	East Baton Rouge
30.4	1960-02-03	2	29°48'N / 90°48'W	29°50'N / 90°45'W	4.30 Miles	100 Yards	0	8	250K	0	Lafourche
31.6	1989-06-08	2	30°38'N / 90°54'W	30°40'N / 90°51'W	2.50 Miles	50 Yards	0	0	25K	0	Livingston
31.7	1972-02-29	3	30°32'N / 91°23'W		1.00 Mile	200 Yards	0	3	250K	0	West Baton Rouge
32.2	1989-06-08	2	30°40'N / 90°51'W	30°38'N / 90°50'W	1.50 Miles	50 Yards	0	0	25K	0	St. Helena
33.2	1977-11-29	2	30°30'N / 90°34'W		1.00 Mile	50 Yards	0	2	250K	0	Livingston
33.6	1984-10-14	3	30°39'N / 91°09'W	30°43'N / 91°06'W	5.00 Miles	150 Yards	0	3	250K	0	East Baton Rouge
33.6	1983-12-06	4	30°04'N / 90°31'W	30°05'N / 90°25'W	7.00 Miles	200 Yards	0	25	25.0M	0	St. John The Baptist
36.8	1961-09-10	2	29°42'N / 91°12'W		1.00 Mile	100 Yards	0	16	25K	0	St. Mary
37.1	1953-02-06	3	30°30'N / 90°33'W	30°32'N / 90°27'W	6.50 Miles	400 Yards	0	0	2.5M	0	Tangipahoa
37.1	1980-04-13	2	29°57'N / 90°29'W	29°58'N / 90°26'W	3.60 Miles	33 Yards	0	2	250K	0	St. Charles
37.2	1977-09-05	2	30°25'N / 90°26'W		1.70 Miles	70 Yards	0	1	2.5M	0	Tangipahoa
37.7	1992-02-15	2	30°35'N / 90°33'W		0.80 Mile	527 Yards	0	10	2.5M	0	Tangipahoa
39.1	1970-03-17	3	29°42'N / 91°18'W		1.00 Mile	50 Yards	0	2	250K	0	St. Mary
40.0	1995-12-17	2	30°33'N / 91°33'W		0.20 Mile	20 Yards	0	1	200K	0	Pointe Coupee
		Brief Description: Fifteen mobile homes were destroyed, four sustained major damage and two minor damage. A child was injured when struck by a Christmas tree. A National Weather Service official surveyed the damage area.
40.3	1952-04-04	2	29°52'N / 91°37'W	29°56'N / 91°33'W	6.40 Miles	20 Yards	0	3	2.5M	0	St. Mary
40.5	1984-10-14	3	30°43'N / 91°06'W	30°52'N / 91°02'W	11.00 Miles	150 Yards	0	0	250K	0	East Feliciana
40.5	1975-05-08	2	30°45'N / 90°45'W				0	0	0K	0	St. Helena
42.3	1971-09-16	2	29°46'N / 91°30'W		0.50 Mile	50 Yards	0	0	25K	0	St. Mary
43.9	1971-09-16	2	30°28'N / 90°20'W	30°31'N / 90°22'W	4.10 Miles	150 Yards	0	0	250K	0	Tangipahoa
44.4	1973-12-04	2	30°42'N / 90°34'W	30°43'N / 90°31'W	3.60 Miles	80 Yards	0	3	2.5M	0	Tangipahoa
44.7	1971-09-19	2	30°41'N / 90°30'W		0.20 Mile	50 Yards	0	0	3K	0	Tangipahoa
44.7	1992-11-21	2	30°50'N / 91°08'W	30°52'N / 91°04'W	9.00 Miles	100 Yards	0	0	250K	0	East Feliciana
45.2	1957-10-15	3	30°34'N / 91°44'W	30°39'N / 91°29'W	15.90 Miles	100 Yards	1	19	250K	0	Pointe Coupee
45.4	2000-03-15	2	29°36'N / 90°43'W	29°36'N / 90°43'W	3.00 Miles	40 Yards	0	36	10.0M	0	Terrebonne
		Brief Description: A tornado touched down in the southeast portion of Houma and moved in a northwest direction to just north of downtown. The tornado moved through both residential and commercial areas of Houma. The damage path was fairly narrow and much of the damage was classified as F1 scale on the Fujita damage scale. However there were areas of F2 tornado damage, particularily in one area where several commercial retail stores had portions of their roofs torn off. Emergency management reported approximately 212 structures received some type of damage, ranging from minor to severe. About 50 of these structures had monetary damage of 50 percent or more of their value. 36 injuries were reported. Only one injury required overnight hospitalization. National Weather Service meteorologist conducted a damage survey of the area.
45.6	1989-05-18	2	30°52'N / 91°01'W	30°52'N / 90°55'W	5.00 Miles	50 Yards	0	0	250K	0	East Feliciana
45.8	1992-11-21	2	30°52'N / 91°16'W	30°50'N / 91°08'W	4.00 Miles	100 Yards	0	0	250K	0	West Feliciana
46.0	1966-01-28	3	29°55'N / 90°19'W		0.10 Mile	17 Yards	0	0	25K	0	St. Charles
46.9	1974-10-29	2	30°02'N / 90°15'W		0.20 Mile	20 Yards	0	0	250K	0	Jefferson
47.9	1972-03-16	2	30°02'N / 90°14'W		0.50 Mile	67 Yards	0	2	250K	0	Jefferson
48.2	2006-11-15	2	30°45'N / 90°32'W	30°45'N / 90°28'W	3.00 Miles	100 Yards	1	0	250K	0K	St. Helena
		Brief Description: EVENT NARRATIVE: A tornado touched down near the intersection of Louisiana Highways 441 and 1046 and moved northeast to Tangipahoa Parish line west of Arcola. One fatality occurred near the initial touchdown when the tornado struck a small frame house and close-by travel trailer. Both house and travel trailer next to the house were destroyed with debris piled about 25 yards to the northeast. A 43 year-old male in the travel trailer was fataly injured. The tornado continued northeast with damage primarily to trees, powerlines and house roofs. EPISODE NARRATIVE: Severe thunderstorms developed in the vicinity of a warm front that moved north across southeast Louisiana during the afternoon and evening of the 14th and in advance and along a cold front that moved through the area during the morning of the 15th.
48.7	2007-02-13	2	30°13'N / 91°51'W	30°16'N / 91°48'W	4.00 Miles	300 Yards	0	3	1.5M	0K	St. Martin
		Brief Description: EVENT NARRATIVE: Wind speeds were estimated between 110 and 120 mph, or on the low end of EF2. This tornado was spawned by the same storm that produced the Youngsville tornado. The tornado began southwest of the intersection of Poydras Highway and Eunice Road and moved northeast, ending past Nursery Highway. Several brick homes had roofs removed near the highs school, with one home losing most of its second floor. A total of 44 homes were damaged or destroyed, with 80 homes impacted by the tornado. Three injuries occurred in a small brick home where the roof blew off, causing a brick wall and other debris to land on them. Several trees were damaged or uprooted. This was the strongest tornado in southwest Louisiana since the November 23 2004 tornado outbreak. EPISODE NARRATIVE: An approaching cold front resulted in showers and thunderstroms across southwest Louisiana, some of which became severe. Several tornadoes touched down across Acadiana.
48.7	1992-11-21	2	30°05'N / 91°52'W	30°16'N / 91°47'W	13.00 Miles	73 Yards	0	3	250K	0	St. Martin

* 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.