Mt. Lebanon School District Natural Disasters and Weather Extremes
Hot Rankings
The chance of earthquake damage in Mt. Lebanon School District is about the same as Pennsylvania average and is much lower than the national average. The risk of tornado damage in Mt. Lebanon School District is lower than Pennsylvania average and is lower than the national average.
Earthquake Index, #626
| Mt. Lebanon School District | 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
| Mt. Lebanon School District | 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, #446
| Mt. Lebanon School District | 98.91 |
| 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 5,029 other weather extremes events within 50 miles of Mt. Lebanon School District 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: | 3 | Cold: | 9 | Dense Fog: | 0 | Drought: | 5 |
| Dust Storm: | 0 | Flood: | 836 | Hail: | 929 | Heat: | 3 | Heavy Snow: | 58 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 27 | Landslide: | 0 | Strong Wind: | 92 |
| Thunderstorm Winds: | 2,923 | Tropical Storm: | 0 | Wildfire: | 0 | Winter Storm: | 29 | Winter Weather: | 3 |
| Other: | 112 | ||||||||
Volcanos Nearby
No volcano is found in or near Mt. Lebanon School District.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Mt. Lebanon School District.
No historical earthquake events found in or near Mt. Lebanon School District.
Historical Tornado Events
A total of 39 historical tornado events that had recorded magnitude of 2 or above found in or near Mt. Lebanon School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 9.2 | 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 |
| 9.6 | 1956-05-13 | 2 | 40°22'N / 79°52'W | 0.70 Mile | 200 Yards | 0 | 5 | 250K | 0 | Allegheny | |
| 9.7 | 1963-08-03 | 3 | 40°19'N / 79°53'W | 2 | 70 | 25.0M | 0 | Allegheny | |||
| 12.8 | 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 |
| 18.7 | 1990-06-30 | 2 | 40°07'N / 80°09'W | 0.20 Mile | 250 Yards | 0 | 0 | 25K | 0 | Washington | |
| 20.6 | 1956-05-12 | 2 | 40°37'N / 80°17'W | 0 | 0 | 250K | 0 | Beaver | |||
| 21.1 | 1954-06-26 | 2 | 40°15'N / 79°41'W | 0 | 4 | 25K | 0 | Westmoreland | |||
| 21.8 | 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 |
| 24.9 | 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 |
| 26.4 | 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 |
| 26.8 | 1964-06-15 | 2 | 40°18'N / 79°33'W | 2.00 Miles | 800 Yards | 0 | 4 | 250K | 0 | Westmoreland | |
| 27.4 | 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 |
| 29.7 | 1981-04-28 | 2 | 40°44'N / 79°44'W | 0.50 Mile | 33 Yards | 0 | 0 | 25K | 0 | Butler | |
| 30.4 | 1965-11-16 | 2 | 40°06'N / 79°36'W | 40°07'N / 79°35'W | 0 | 3 | 250K | 0 | Fayette | ||
| 30.4 | 1965-11-16 | 2 | 40°05'N / 79°37'W | 40°06'N / 79°36'W | 0 | 3 | 250K | 0 | Westmoreland | ||
| 30.5 | 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 |
| 31.3 | 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 |
| 32.2 | 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 |
| 32.8 | 1981-07-20 | 2 | 40°51'N / 80°00'W | 0 | 0 | 250K | 0 | Butler | |||
| 34.5 | 1954-06-10 | 2 | 40°51'N / 80°11'W | 40°53'N / 80°10'W | 0 | 2 | 25K | 0 | Lawrence | ||
| 34.5 | 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 |
| 34.6 | 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 |
| 34.9 | 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 |
| 35.0 | 1980-05-12 | 2 | 40°24'N / 79°23'W | 2.20 Miles | 20 Yards | 0 | 0 | 250K | 0 | Westmoreland | |
| 37.0 | 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 |
| 39.0 | 1968-06-25 | 2 | 39°51'N / 80°19'W | 0 | 1 | 250K | 0 | Greene | |||
| 39.9 | 1997-08-15 | 2 | 40°20'N / 79°19'W | 40°21'N / 79°16'W | 3.50 Miles | 200 Yards | 0 | 2 | 800K | 10K | Westmoreland |
| Brief Description: A severe thunderstorm produced a tornado that produced substantial damage in a residential area east-northeast of Latrobe along the foothills of the Chestnut Ridge. The tornado first touched down 1 mile west of Derry. The tornado completely destroyed a large tier of metal stadium bleachers at a high school football field and wrapped them against a utility pole. A nearby roof of a business was damaged and a mobile home was completely destroyed and a few mobile homes sustained damage. The tornado then tracked through a rural area, damaging some farm buildings and downing field corn. The tornado continued its rapid (estimated forward speed 50-60 miles per hour) northeast track and caused significant damage in a mobile home park in Derry. The tornado crossed Route 217 and downed trees across railroad tracks and then entered a residential area in Millwood. One frame house in Millwood was severely damaged and part of a room addition collapsed and trapped a resident, who was treated at the scene. A resident of a mobile home sustained minor injuries as well. Numerous trees were uprooted and large branches and power lines were downed along the track of the storm. One home along Route 217 had a branch embedded into the house siding. The tornado was estimated to have wind speeds of between 90 and 120 miles per hour, briefly attaining an F-2 rating on the Fujita Tornado Scale. All tolled, 7-8 mobile homes were destroyed (3 totally decimated), 10-12 sustained major damage, 15-18 sustained minor damage. One frame house was heavily damaged and about 10 sustained minor damage. One car was destroyed when a tree fell on it. Parked next to the auto was another car with two occupants that were not injured. About 10 other cars were damaged. An open-air church in Millwood was also heavily damaged. The tornado appeared to have dissipated as it entered the heavily wooded slopes of the Chestnut Ridge. | |||||||||||
| 40.7 | 1966-04-23 | 2 | 40°42'N / 79°24'W | 1.00 Mile | 17 Yards | 0 | 0 | 25K | 0 | Armstrong | |
| 41.2 | 1954-06-01 | 2 | 40°55'N / 79°48'W | 40°57'N / 79°44'W | 3.00 Miles | 150 Yards | 0 | 0 | 25K | 0 | Butler |
| 42.5 | 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 |
| 43.4 | 1983-05-22 | 2 | 40°27'N / 79°17'W | 40°30'N / 79°11'W | 6.00 Miles | 200 Yards | 0 | 0 | 2.5M | 0 | Indiana |
| 44.8 | 1981-07-26 | 2 | 40°34'N / 79°14'W | 0 | 0 | 250K | 0 | Indiana | |||
| 45.3 | 1954-04-27 | 2 | 40°13'N / 80°53'W | 1.00 Mile | 33 Yards | 0 | 1 | 250K | 0 | Jefferson | |
| 45.8 | 1977-09-24 | 2 | 41°00'N / 80°21'W | 0 | 0 | 2.5M | 0 | Lawrence | |||
| 46.4 | 1953-05-30 | 2 | 40°24'N / 79°12'W | 40°24'N / 79°08'W | 1.90 Miles | 33 Yards | 0 | 0 | 25K | 0 | Indiana |
| 47.4 | 2002-04-28 | 2 | 40°34'N / 79°14'W | 40°37'N / 79°09'W | 5.00 Miles | 250 Yards | 0 | 1 | 750K | 0 | Indiana |
| 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. | |||||||||||
| 47.6 | 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 |
| 48.3 | 1985-05-31 | 2 | 40°53'N / 80°51'W | 40°50'N / 80°35'W | 15.00 Miles | 220 Yards | 0 | 20 | 25.0M | 0 | Columbiana |
| 49.8 | 1951-06-27 | 2 | 40°35'N / 79°15'W | 40°52'N / 79°11'W | 19.70 Miles | 33 Yards | 0 | 0 | 3K | 0 | Armstrong |
* 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.