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Clarion, PA Natural Disasters and Weather Extremes

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

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

Earthquake Index, #2387

Clarion, PA
0.00
Pennsylvania
0.17
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

Clarion, PA
0.0000
Pennsylvania
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, #1216

Clarion, PA
108.76
Pennsylvania
109.77
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 2,961 other weather extremes events within 50 miles of Clarion, PA were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:5Cold:18Dense Fog:0Drought:9
Dust Storm:0Flood:413Hail:444Heat:4Heavy Snow:130
High Surf:0Hurricane:0Ice Storm:28Landslide:0Strong Wind:83
Thunderstorm Winds:1,697Tropical Storm:1Wildfire:0Winter Storm:45Winter Weather:2
Other:82 

Volcanos Nearby

No volcano is found in or near Clarion, PA.

Historical Earthquake Events

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

No historical earthquake events found in or near Clarion, PA.

Historical Tornado Events

A total of 45 historical tornado events that had recorded magnitude of 2 or above found in or near Clarion, PA.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
5.81985-05-31441°31'N / 79°56'W40°44'N / 78°50'W12.50 Miles350 Yards84025.0M0Venango
7.81954-06-01241°14'N / 79°33'W41°15'N / 79°30'W003K0Clarion
11.01996-07-19241°05'N / 79°19'W41°04'N / 79°13'W7.50 Miles100 Yards0025K5KClarion
 Brief Description: A tornado began in Clarion County about 6 miles north of New Bethlehem. It tracked southeast into Jefferson County through Langville. The tornado lifted 1.5 miles west of Oliveburg. The tornado uprooted trees and rolled a mobile home, about a mile north of Truittsburg in Clarion County. The tornado also damaged some homes and farms, crops and downed extensive swaths of trees along its path. The tornado moved mainly in a straight line and averaged about 100 yards in width.
13.81985-05-31440°44'N / 78°50'W41°26'N / 79°31'W11.00 Miles350 Yards0525.0M0Venango
16.51985-05-31441°26'N / 79°31'W41°26'N / 79°28'W3.00 Miles350 Yards0025.0M0Forest
17.01986-09-23240°58'N / 79°26'W0.50 Mile40 Yards012.5M0Armstrong
17.81996-07-19241°04'N / 79°13'W40°59'N / 79°04'W2.50 Miles100 Yards0025K5KJefferson
 Brief Description: A tornado began in Clarion County about 6 miles north of New Bethlehem. It tracked southeast into Jefferson County through Langville. The tornado lifted 1.5 miles west of Oliveburg. The tornado uprooted trees and rolled a mobile home, about a mile north of Truittsburg in Clarion County. The tornado also damaged some homes and farms, crops and downed extensive swaths of trees along its path. The tornado moved mainly in a straight line and averaged about 100 yards in width.
17.81976-07-11241°19'N / 79°12'W40°58'N / 78°54'W28.70 Miles33 Yards17250K0Jefferson
18.81985-05-31241°13'N / 79°48'W41°12'N / 79°41'W6.00 Miles150 Yards010K0Venango
20.41985-05-31441°31'N / 79°32'W41°27'N / 78°56'W25.00 Miles800 Yards7300K0Forest
24.51985-05-31441°33'N / 79°37'W41°31'N / 79°32'W4.00 Miles800 Yards000K0Venango
27.71981-08-07241°24'N / 79°51'W00250K0Venango
27.71954-06-01240°55'N / 79°48'W40°57'N / 79°44'W3.00 Miles150 Yards0025K0Butler
31.71985-05-31341°41'N / 79°29'W41°39'N / 79°09'W17.00 Miles800 Yards080K0Warren
34.01985-05-31241°34'N / 78°57'W41°35'N / 78°56'W1.50 Miles300 Yards000K0Forest
34.51981-07-28241°37'N / 79°46'W2.00 Miles33 Yards04250K0Crawford
34.51951-06-27240°35'N / 79°15'W40°52'N / 79°11'W19.70 Miles33 Yards003K0Armstrong
34.91996-07-19240°55'N / 78°55'W40°52'N / 78°48'W6.50 Miles200 Yards03200K10KIndiana
 Brief Description: A tornado touched down in Jefferson County and traveled southeast into northeast Indiana County, the tornado continued into the State Game Lands and exited Indiana County 4 miles north-north east of Glen Campbell and then entered Clearfield County. The tornado's path was 200 feet wide at its greatest width in Indiana County. Just some tree damage occurred in Jefferson County. The tornado strengthened and caused greater damage in Indiana County. Just east of Rossiter, the tornado tore the roof off of a barn. A child, playing outside, sought shelter in the barn. The roof lifted off and three of the four walls collapsed. The child was not injured. A horse that was inside the barn was sucked out and carried approximately 75 feet in the air into a field. The tornado traveled then traveled up a hill and significantly damaged one mobile home and destroyed a second. The second mobile home was carried at least 75 yards across a road and smashed against a row of trees. Three people were inside the mobile home and were injured, one critically. The tornado at this time was at it's strongest, at the upper end of F2. A nearby wood frame house was destroyed and dense areas of trees were felled or snapped. About a dozen homes sustained damage along the path, 5 were damaged extensively. Thirty pound cinder blocks from a garage were thrown approximately 300 yards up a nearby hill where a stronger suction vortex was noted. The tornado tracked into the State Game Lands and a 50 yard path of downed and twisted 100 to 150 foot trees was noted into the densely forested region.
35.21966-04-23240°42'N / 79°24'W1.00 Mile17 Yards0025K0Armstrong
35.81985-05-31441°38'N / 79°02'W41°38'N / 78°56'W3.50 Miles1000 Yards000K0Warren
37.01954-06-01241°18'N / 80°05'W033K0Mercer
37.71981-04-28240°44'N / 79°44'W0.50 Mile33 Yards0025K0Butler
38.21985-05-31241°35'N / 78°56'W41°37'N / 78°47'W10.50 Miles300 Yards000K0Elk
39.51986-10-03241°08'N / 80°14'W41°08'N / 80°02'W9.00 Miles123 Yards002.5M0Mercer
39.81985-05-31441°38'N / 78°56'W41°40'N / 78°50'W7.50 Miles1000 Yards000K0Mckean
40.51985-05-31341°43'N / 79°48'W41°45'N / 79°40'W8.00 Miles427 Yards002.5M0Crawford
40.71981-07-20240°51'N / 80°00'W00250K0Butler
40.91963-09-03341°25'N / 78°44'W41°27'N / 78°34'W8.40 Miles100 Yards0202.5M0Elk
43.21985-05-31340°47'N / 80°09'W40°43'N / 79°44'W22.00 Miles243 Yards68025.0M0Butler
43.31980-06-03440°36'N / 79°33'W40°35'N / 79°30'W2.30 Miles33 Yards0120250.0M0Armstrong
43.41980-06-03440°37'N / 79°42'W40°36'N / 79°33'W7.60 Miles33 Yards00250.0M0Westmoreland
43.51980-06-03440°39'N / 79°44'W40°37'N / 79°42'W1.90 Miles33 Yards020250.0M0Allegheny
43.62004-05-25241°32'N / 80°10'W41°31'N / 80°03'W7.00 Miles50 Yards003.5M0Crawford
 Brief Description: An F2 tornado touched down three miles west of Custards and then tracked east for seven miles. The tornado finally lifted just west of Cochranton near U.S Highway 322. The damage path was continuous, up to 50 yards in width and roughly parallel to State Route 285. Significant damage occurred along the damage path. At least ten homes were damaged with two large farm buildings destroyed. Two factories west of Custards along Delano Road were also heavily damaged. One factory lost over 16,000 square feet of roofing and had much of it's inventory destroyed. The second factory was also heavily damaged on one side. Twelve semi trailers parked outside this factory were overturned and destroyed. Several dozen workers inside the factories had sought shelter prior to the arrival of the tornado and were uninjured. Hundreds of trees and dozens of power poles were downed along the damage path.
43.82002-04-28240°34'N / 79°14'W40°37'N / 79°09'W5.00 Miles250 Yards01750K0Indiana
 Brief Description: A storm spawning two separate tornadoes passed over southern Armstrong County, continuing eastward into Indiana County. The first tornado, an F0, touched down at approximately 2:45 PM EST just south of the town of Spring Church in Armstrong County. It traveled east about 3 miles before crossing into Indiana County approximately 1 mile east of Maysville at 2:52 PM EST. This tornado continued traveling to the east for another mile, finally dissipating near the community of Iselin at around 2:55 PM EST. The maximum estimated winds with this tornado were about 70 MPH. Damage from this first tornado included numerous trees which were toppled or snapped. A small steeple was toppled, and a swimming pool was destroyed. There were several trees toppled onto houses, and some houses suffered minor wind damage. A garage was damaged, and a house under construction was lifted off the foundation. The same storm produced another stronger tornado, an F2, which touched down in Indiana County approximately 6 miles southwest of the city of Indiana at 3:00 PM EST. This F2 traveled to the east across Center Township for approximately 5 miles, dissipating just south of Indiana at 3:06 PM EST. The estimated maximum winds were around 135 MPH. This F2 tornado produced a swath of damage as it traveled eastward across Indiana County. One house was totally destroyed, and debris from this house was blown downwind. In this same area, a car was turned over and trees were stripped of leaves. An adjacent house exhibited damage from hail or flying projectiles on several sides. The house immediately to the north of the destroyed house lost part of its east-facing roof. There were at least an additional 18 houses damaged (roofs, shingles, siding, etc.). Several garages and barns were either toppled or snapped. A large sign from a hotel was blown down onto a car sales lot. Two cars were crushed and 18 other vehicles were damaged. One moderate injury was reported with this tornado.
44.01985-05-31441°40'N / 78°50'W41°38'N / 78°42'W6.50 Miles1000 Yards4400K0Mckean
44.31964-06-15241°14'N / 80°14'W04250K0Mercer
44.41972-05-02341°29'N / 80°12'W41°33'N / 80°04'W7.90 Miles33 Yards0325K0Crawford
45.01981-07-26240°34'N / 79°14'W00250K0Indiana
45.51985-05-31241°37'N / 78°47'W41°40'N / 78°39'W7.00 Miles300 Yards000K0Mckean
45.81985-05-31441°29'N / 80°25'W41°31'N / 79°56'W22.50 Miles350 Yards87525.0M0Crawford
45.91985-05-31341°42'N / 80°09'W41°45'N / 79°44'W23.00 Miles277 Yards200K0Crawford
46.71972-05-02341°28'N / 80°13'W41°29'N / 80°12'W0025K0Mercer
46.71980-06-03240°32'N / 79°28'W40°32'N / 79°22'W4.90 Miles33 Yards00250K0Indiana
47.71954-06-10240°51'N / 80°11'W40°53'N / 80°10'W0225K0Lawrence
48.31985-05-31441°38'N / 78°42'W41°33'N / 78°30'W11.50 Miles1000 Yards000K0Elk


* 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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