Washington County Natural Disasters and Weather Extremes
The chance of earthquake damage in Washington County is about the same as Pennsylvania average and is much lower than the national average. The risk of tornado damage in Washington County is lower than Pennsylvania average and is lower than the national average.
Earthquake Index, #64
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
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, #44
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 14,331 other weather extremes events within 50 miles of Washington County were recorded from 1950 to 2010. The following is a break down of these events:
|Dust Storm:||0||Flood:||2,441||Hail:||2,961||Heat:||10||Heavy Snow:||164|
|High Surf:||0||Hurricane:||0||Ice Storm:||50||Landslide:||0||Strong Wind:||204|
|Thunderstorm Winds:||8,005||Tropical Storm:||1||Wildfire:||3||Winter Storm:||79||Winter Weather:||14|
No volcano is found in or near Washington County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Washington County.
No historical earthquake events found in or near Washington County.
Historical Tornado Events
A total of 32 historical tornado events that had recorded magnitude of 2 or above found in or near Washington County.
|Distance (miles)||Date||Magnitude||Start Lat/Log||End Lat/Log||Length||Width||Fatalities||Injuries||Property Damage||Crop Damage||Affected County|
|7.9||1990-06-30||2||40°07'N / 80°09'W||0.20 Mile||250 Yards||0||0||25K||0||Washington|
|21.0||1963-08-03||3||40°19'N / 79°53'W||2||70||25.0M||0||Allegheny|
|23.0||1983-05-22||2||40°17'N / 79°53'W||40°18'N / 79°47'W||5.00 Miles||200 Yards||0||0||2.5M||0||Allegheny|
|23.3||1956-05-13||2||40°22'N / 79°52'W||0.70 Mile||200 Yards||0||5||250K||0||Allegheny|
|23.6||1975-06-04||2||40°35'N / 80°13'W||40°11'N / 79°32'W||45.30 Miles||30 Yards||0||0||0K||0||Beaver|
|24.4||1968-06-25||2||39°51'N / 80°19'W||0||1||250K||0||Greene|
|28.8||1956-05-12||2||40°37'N / 80°17'W||0||0||250K||0||Beaver|
|30.2||1954-06-26||2||40°15'N / 79°41'W||0||4||25K||0||Westmoreland|
|33.2||1983-05-22||2||40°18'N / 79°47'W||40°20'N / 79°30'W||14.00 Miles||200 Yards||0||6||2.5M||0||Westmoreland|
|33.3||1954-04-27||2||40°13'N / 80°53'W||1.00 Mile||33 Yards||0||1||250K||0||Jefferson|
|34.8||1965-11-16||2||40°05'N / 79°37'W||40°06'N / 79°36'W||0||3||250K||0||Westmoreland|
|35.1||1986-10-01||2||39°55'N / 79°45'W||39°54'N / 79°40'W||4.50 Miles||100 Yards||0||2||2.5M||0||Fayette|
|35.4||1965-11-16||2||40°06'N / 79°36'W||40°07'N / 79°35'W||0||3||250K||0||Fayette|
|37.6||1964-06-15||2||40°18'N / 79°33'W||2.00 Miles||800 Yards||0||4||250K||0||Westmoreland|
|41.1||1980-06-03||4||40°39'N / 79°44'W||40°37'N / 79°42'W||1.90 Miles||33 Yards||0||20||250.0M||0||Allegheny|
|41.3||1985-05-31||3||40°47'N / 80°09'W||40°43'N / 79°44'W||22.00 Miles||243 Yards||6||80||25.0M||0||Butler|
|41.5||1954-06-10||2||40°45'N / 80°15'W||40°51'N / 80°11'W||7.30 Miles||33 Yards||0||1||25K||0||Beaver|
|41.5||1985-05-31||3||40°49'N / 80°28'W||40°47'N / 80°09'W||17.00 Miles||243 Yards||3||40||25.0M||0||Beaver|
|42.6||1971-07-13||2||39°46'N / 79°50'W||39°42'N / 79°37'W||12.20 Miles||70 Yards||0||4||250K||0||Fayette|
|43.4||1980-06-03||4||40°37'N / 79°42'W||40°36'N / 79°33'W||7.60 Miles||33 Yards||0||0||250.0M||0||Westmoreland|
|44.4||2000-05-23||2||40°21'N / 81°05'W||40°20'N / 81°04'W||3.00 Miles||200 Yards||0||0||100K||0||Harrison|
|Brief Description: An F2 tornado with maximum winds estimated at 120 MPH passed through a 3-mile section of rural Harrison County. The tornado passed over only one residence as it moved to the east but destroyed several items on the property, including a cinder-block garage, a wooden barn, and several outbuildings. A parked truck was lifted and turned about 90 degrees but was otherwise undamaged. There were several large sections of heavily wooded area along the tornado's path which were completely cleared of trees. No injuries or fatalities were reported.|
|45.5||1976-07-11||3||40°21'N / 79°30'W||40°16'N / 79°18'W||11.80 Miles||67 Yards||1||17||2.5M||0||Westmoreland|
|45.8||1981-04-28||2||40°44'N / 79°44'W||0.50 Mile||33 Yards||0||0||25K||0||Butler|
|46.2||1954-06-10||2||40°51'N / 80°11'W||40°53'N / 80°10'W||0||2||25K||0||Lawrence|
|46.3||1981-06-21||2||39°32'N / 80°21'W||1.00 Mile||10 Yards||0||0||250K||0||Marion|
|46.7||1967-07-24||2||40°49'N / 80°41'W||40°49'N / 80°33'W||6.50 Miles||277 Yards||0||2||250K||0||Columbiana|
|46.8||1981-07-20||2||40°51'N / 80°00'W||0||0||250K||0||Butler|
|46.8||1980-06-03||4||40°36'N / 79°33'W||40°35'N / 79°30'W||2.30 Miles||33 Yards||0||120||250.0M||0||Armstrong|
|46.9||1998-06-02||2||39°45'N / 79°39'W||39°43'N / 79°34'W||5.00 Miles||300 Yards||0||0||3.0M||2.0M||Fayette|
|Brief Description: An F2 tornado passed southeast through southern Fayette County PA, the northeast tip of Preston County WV, and into northwest Garrett County MD. The total length of the tornado as it passed across these three counties was 12 miles. Damage included a completely destroyed dairy barn, two completely destroyed house trailers, and at least 21 other structures heavily damaged, many with roofs partially or completely peeled off. Several cows were killed, with one cow thrown through the air over 100 yards. A clearly visible 300-yard wide, 1-mile long swath of trees which were completely sheared/uprooted was present near the Pennsylvania/West Virginia state border. One Fayette County official estimated at least two million dollars damage in lost timber alone in that county. Despite the damage, interviews with law enforcement officials, paramedics and local residents revealed no injuries occurred.|
|47.2||1983-05-22||2||40°20'N / 79°30'W||40°27'N / 79°17'W||13.00 Miles||200 Yards||0||4||2.5M||0||Westmoreland|
|47.8||1980-05-12||2||40°24'N / 79°23'W||2.20 Miles||20 Yards||0||0||250K||0||Westmoreland|
|49.6||1980-06-03||2||40°32'N / 79°28'W||40°32'N / 79°22'W||4.90 Miles||33 Yards||0||0||250K||0||Indiana|
* 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.