Tioga County Natural Disasters and Weather Extremes
The chance of earthquake damage in Tioga County is about the same as Pennsylvania average and is much lower than the national average. The risk of tornado damage in Tioga County is lower than Pennsylvania average and is much lower than the national average.
Earthquake Index, #51
| Tioga County | 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
| Tioga County | 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, #66
| Tioga County | 46.45 |
| 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 9,298 other weather extremes events within 50 miles of Tioga County 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: | 6 | Cold: | 86 | Dense Fog: | 20 | Drought: | 66 |
| Dust Storm: | 0 | Flood: | 1,234 | Hail: | 1,525 | Heat: | 105 | Heavy Snow: | 355 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 36 | Landslide: | 1 | Strong Wind: | 207 |
| Thunderstorm Winds: | 5,123 | Tropical Storm: | 1 | Wildfire: | 2 | Winter Storm: | 102 | Winter Weather: | 59 |
| Other: | 370 | ||||||||
Volcanos Nearby
No volcano is found in or near Tioga County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Tioga County.
No historical earthquake events found in or near Tioga County.
Historical Tornado Events
A total of 15 historical tornado events that had recorded magnitude of 2 or above found in or near Tioga County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 13.5 | 1983-05-02 | 2 | 41°56'N / 77°27'W | 41°58'N / 77°15'W | 9.80 Miles | 30 Yards | 0 | 0 | 2.5M | 0 | Tioga |
| 35.9 | 1966-08-16 | 2 | 41°18'N / 77°00'W | 41°18'N / 76°54'W | 4.50 Miles | 100 Yards | 0 | 1 | 25K | 0 | Lycoming |
| 36.3 | 2003-07-21 | 3 | 41°55'N / 77°56'W | 41°55'N / 77°56'W | 2.50 Miles | 200 Yards | 0 | 0 | 200K | 0 | Potter |
| Brief Description: A team from the National Weather Service office in State College surveyed damage and interviewed residents and emergency management officials in Potter county. The team determined that an F3 tornado touched down in Potter county around 4:00 pm Monday July 21 2003. The tornado first touched down about 2 miles southwest of the town of Ellisburg...where it downed hundreds of trees. The tornado continued to the northeast...where it hit the Smoker Farm. The barn and house were completely destroyed...and one of three silos was tipped over. A second home on Smoker Road was also extensively damaged and is uninhabitable. In addition...a car was picked up and thrown 600 yards. A farm tractor was lifted into the trees. The tornado path was 2 1/2 miles long...while the width was about 200 yards. Based on the damage...the tornado was mainly an F2...but rated as a weak F3 at its peak with winds of 160 mph. There were two injuries, but no deaths. | |||||||||||
| 37.3 | 1983-05-02 | 3 | 42°02'N / 76°41'W | 42°03'N / 76°35'W | 6.00 Miles | 300 Yards | 0 | 6 | 2.5M | 0 | Chemung |
| 39.1 | 1962-06-14 | 2 | 41°46'N / 78°01'W | 0.20 Mile | 33 Yards | 0 | 0 | 3K | 0 | Potter | |
| 39.8 | 1976-07-29 | 3 | 41°12'N / 77°16'W | 41°14'N / 76°47'W | 25.00 Miles | 150 Yards | 0 | 0 | 2.5M | 0 | Lycoming |
| 40.5 | 1983-05-02 | 3 | 42°00'N / 76°32'W | 2.00 Miles | 880 Yards | 0 | 1 | 2.5M | 0 | Tioga | |
| 41.3 | 1954-09-19 | 2 | 41°31'N / 76°40'W | 41°29'N / 76°25'W | 12.80 Miles | 50 Yards | 0 | 0 | 25K | 0 | Sullivan |
| 42.8 | 1955-08-30 | 3 | 42°20'N / 76°55'W | 1.00 Mile | 200 Yards | 0 | 0 | 25K | 0 | Schuyler | |
| 43.3 | 1985-05-31 | 3 | 41°11'N / 77°09'W | 41°08'N / 76°58'W | 11.00 Miles | 910 Yards | 2 | 20 | 25.0M | 0 | Lycoming |
| 43.3 | 1985-05-31 | 4 | 41°10'N / 77°52'W | 41°13'N / 77°19'W | 29.00 Miles | 3330 Yards | 0 | 0 | 25.0M | 0 | Clinton |
| 44.3 | 1983-05-02 | 3 | 42°03'N / 76°35'W | 42°03'N / 76°23'W | 9.00 Miles | 300 Yards | 0 | 0 | 2.5M | 0 | Tioga |
| 46.2 | 1985-05-31 | 3 | 41°08'N / 76°58'W | 41°09'N / 76°55'W | 4.00 Miles | 910 Yards | 2 | 20 | 25.0M | 0 | Union |
| 46.3 | 1974-04-14 | 2 | 41°25'N / 76°33'W | 41°32'N / 76°21'W | 12.80 Miles | 100 Yards | 0 | 0 | 25K | 0 | Sullivan |
| 48.0 | 1985-05-31 | 3 | 41°09'N / 76°55'W | 41°07'N / 76°50'W | 4.00 Miles | 2640 Yards | 2 | 20 | 25.0M | 0 | Northumberland |
* 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.