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Harmony, PA Natural Disasters and Weather Extremes

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

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

Earthquake Index, #1854

Harmony, PA
0.01
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

Harmony, 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, #484

Harmony, PA
146.55
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 5,363 other weather extremes events within 50 miles of Harmony, PA were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:5Cold:13Dense Fog:0Drought:13
Dust Storm:0Flood:844Hail:1,009Heat:8Heavy Snow:100
High Surf:0Hurricane:0Ice Storm:40Landslide:0Strong Wind:112
Thunderstorm Winds:3,003Tropical Storm:1Wildfire:0Winter Storm:63Winter Weather:13
Other:139 

Volcanos Nearby

No volcano is found in or near Harmony, PA.

Historical Earthquake Events

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

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

Historical Tornado Events

A total of 58 historical tornado events that had recorded magnitude of 2 or above found in or near Harmony, PA.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
4.81954-06-10240°45'N / 80°15'W40°51'N / 80°11'W7.30 Miles33 Yards0125K0Beaver
5.21954-06-10240°51'N / 80°11'W40°53'N / 80°10'W0225K0Lawrence
7.31981-07-20240°51'N / 80°00'W00250K0Butler
9.61985-05-31340°49'N / 80°28'W40°47'N / 80°09'W17.00 Miles243 Yards34025.0M0Beaver
10.21985-05-31340°47'N / 80°09'W40°43'N / 79°44'W22.00 Miles243 Yards68025.0M0Butler
15.21956-05-12240°37'N / 80°17'W00250K0Beaver
18.11977-09-24241°00'N / 80°21'W002.5M0Lawrence
20.81954-06-01240°55'N / 79°48'W40°57'N / 79°44'W3.00 Miles150 Yards0025K0Butler
21.01981-04-28240°44'N / 79°44'W0.50 Mile33 Yards0025K0Butler
21.81992-08-08241°04'N / 80°21'W2.00 Miles150 Yards0025K0Lawrence
22.91986-10-03241°08'N / 80°14'W41°08'N / 80°02'W9.00 Miles123 Yards002.5M0Mercer
24.31980-06-03440°39'N / 79°44'W40°37'N / 79°42'W1.90 Miles33 Yards020250.0M0Allegheny
25.71967-07-24240°49'N / 80°41'W40°49'N / 80°33'W6.50 Miles277 Yards02250K0Columbiana
26.72001-04-09241°02'N / 80°32'W41°02'N / 80°32'W4.00 Miles75 Yards00200K0Mahoning
 Brief Description: A weak F2 tornado touched down near Lowellville in eastern Mahoning County. The tornado had a intermittent damage path approximately four miles in length and 75 yards in width. Two homes, one business and two garages suffered significant damage with around a dozen other homes sustaining minor damage.
27.81992-08-08241°06'N / 80°29'W1.50 Miles100 Yards011250K0Lawrence
29.41980-06-03440°37'N / 79°42'W40°36'N / 79°33'W7.60 Miles33 Yards00250.0M0Westmoreland
30.41964-06-15241°14'N / 80°14'W04250K0Mercer
31.01985-05-31541°12'N / 80°29'W41°13'N / 80°16'W12.00 Miles450 Yards860250K0Mercer
31.21985-05-31240°53'N / 80°51'W40°50'N / 80°35'W15.00 Miles220 Yards02025.0M0Columbiana
31.71975-06-04240°35'N / 80°13'W40°11'N / 79°32'W45.30 Miles30 Yards000K0Beaver
32.81985-05-31541°10'N / 80°31'W41°12'N / 80°29'W2.00 Miles450 Yards00250K0Mercer
32.91956-05-13240°22'N / 79°52'W0.70 Mile200 Yards05250K0Allegheny
32.91987-06-27241°04'N / 80°39'W1.50 Miles40 Yards00250K0Mahoning
33.31985-05-31541°10'N / 80°34'W41°10'N / 80°31'W3.00 Miles440 Yards00250.0M0Trumbull
34.51985-05-31241°13'N / 79°48'W41°12'N / 79°41'W6.00 Miles150 Yards010K0Venango
34.51954-06-01241°18'N / 80°05'W033K0Mercer
34.61980-06-03440°36'N / 79°33'W40°35'N / 79°30'W2.30 Miles33 Yards0120250.0M0Armstrong
34.81963-04-19241°02'N / 80°52'W41°02'N / 80°34'W15.30 Miles33 Yards00250K0Mahoning
35.71954-09-30241°15'N / 80°28'W0025K0Mercer
35.81963-08-03340°19'N / 79°53'W27025.0M0Allegheny
36.41956-08-05341°08'N / 80°41'W41°07'N / 80°40'W20250K0Mahoning
36.92002-11-10241°15'N / 80°28'W41°20'N / 80°21'W7.00 Miles500 Yards1191.0M0Mercer
 Brief Description: Starting about 7:54 PM, an F2 tornado touched down near Trout Island Road, east of Sharpsville. The tornado traveled northeast at 50 mph, crossed Route 18, then ripped into Clark. It crossed Shenango River Lake and tracked to New Hamburg, where it dissipated 8:02 PM. The tornado path was 7 miles long, about 500 yards wide at its maximum, in the town of Clark. Maximum winds estimated 155 mph. Majority of damage and all injuries occurred in Clark. Fifteen homes completely destroyed, 13 major damage, 29 had minor damage. One business destroyed; 1 suffered major damage. A large number of trees were snapped or toppled. Large truck was overturned. One van was thrown across Route 258. Several other vehicles were moved by the tornado or suffered considerable damage. Strongest tornado in Mercer county since May 31,1985. M81PH
37.41955-03-11240°53'N / 80°50'W1.00 Mile100 Yards00250K0Columbiana
37.71956-08-05341°09'N / 80°42'W41°08'N / 80°41'W00250K0Trumbull
37.91986-09-23240°58'N / 79°26'W0.50 Mile40 Yards012.5M0Armstrong
38.41983-05-22240°17'N / 79°53'W40°18'N / 79°47'W5.00 Miles200 Yards002.5M0Allegheny
38.61966-04-23240°42'N / 79°24'W1.00 Mile17 Yards0025K0Armstrong
38.91978-10-12340°48'N / 80°55'W40°53'N / 80°49'W7.30 Miles250 Yards042.5M0Columbiana
40.51978-06-07241°09'N / 80°46'W41°10'N / 80°43'W002.5M0Trumbull
41.21976-02-16241°04'N / 80°50'W1.50 Miles600 Yards00250K0Mahoning
41.51980-06-03240°32'N / 79°28'W40°32'N / 79°22'W4.90 Miles33 Yards00250K0Indiana
42.01983-05-22240°18'N / 79°47'W40°20'N / 79°30'W14.00 Miles200 Yards062.5M0Westmoreland
42.81955-03-01341°16'N / 80°40'W2.50 Miles40 Yards16250K0Mahoning
43.61954-06-01241°14'N / 79°33'W41°15'N / 79°30'W003K0Clarion
43.71981-08-07241°24'N / 79°51'W00250K0Venango
44.01985-05-31541°12'N / 81°02'W41°10'N / 80°34'W23.50 Miles440 Yards10250250.0M0Trumbull
44.61954-06-26240°15'N / 79°41'W0425K0Westmoreland
44.71985-05-31441°31'N / 79°56'W40°44'N / 78°50'W12.50 Miles350 Yards84025.0M0Venango
45.91964-06-15240°18'N / 79°33'W2.00 Miles800 Yards04250K0Westmoreland
46.71972-05-02341°28'N / 80°13'W41°29'N / 80°12'W0025K0Mercer
47.31990-06-30240°07'N / 80°09'W0.20 Mile250 Yards0025K0Washington
47.71983-05-22240°20'N / 79°30'W40°27'N / 79°17'W13.00 Miles200 Yards042.5M0Westmoreland
47.71980-05-12240°24'N / 79°23'W2.20 Miles20 Yards00250K0Westmoreland
47.81951-06-27240°35'N / 79°15'W40°52'N / 79°11'W19.70 Miles33 Yards003K0Armstrong
48.31985-05-31441°29'N / 80°25'W41°31'N / 79°56'W22.50 Miles350 Yards87525.0M0Crawford
48.61996-07-19241°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.
49.41972-05-02341°29'N / 80°12'W41°33'N / 80°04'W7.90 Miles33 Yards0325K0Crawford
49.41981-07-26240°34'N / 79°14'W00250K0Indiana


* 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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