Sonora Independent School District Natural Disasters and Weather Extremes
The chance of earthquake damage in Sonora Independent School District is about the same as Texas average and is much lower than the national average. The risk of tornado damage in Sonora Independent School District is much lower than Texas average and is much lower than the national average.
Earthquake Index, #993
| Sonora Independent School District | 0.00 |
| Texas | 0.04 |
| 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
| Sonora Independent School District | 0.0000 |
| Texas | 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, #1228
| Sonora Independent School District | 11.45 |
| Texas | 208.58 |
| 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 568 other weather extremes events within 50 miles of Sonora Independent 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: | 0 | Cold: | 0 | Dense Fog: | 0 | Drought: | 0 |
| Dust Storm: | 0 | Flood: | 148 | Hail: | 320 | Heat: | 0 | Heavy Snow: | 0 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 0 |
| Thunderstorm Winds: | 95 | Tropical Storm: | 0 | Wildfire: | 1 | Winter Storm: | 0 | Winter Weather: | 0 |
| Other: | 4 | ||||||||
Volcanos Nearby
No volcano is found in or near Sonora Independent School District.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Sonora Independent School District.
No historical earthquake events found in or near Sonora Independent School District.
Historical Tornado Events
A total of 3 historical tornado events that had recorded magnitude of 2 or above found in or near Sonora Independent School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 31.0 | 1999-05-04 | 2 | 30°57'N / 100°44'W | 30°57'N / 100°30'W | 23.00 Miles | 250 Yards | 0 | 0 | 10K | 0 | Schleicher |
| Brief Description: A slow moving tornado skipped across a 23 mile long path just north of Eldorado in northern Schleicher County. Eleven power poles were snapped, trees uprooted, and at least 2 barns lost their roofs as the tornado passed. Other outbuildings along the path of the tornado were also damaged. Severe storms developed across much of West Central Texas during the evening of the 3rd and continued into the early morning hours of the 4th. A brief tornado was reported near Maryneal in Nolan County, while hail up to the size of grapefruit was reported northwest of Sterling City. Hail up to tennis ball size was reported in Drasco in northern Runnels County, while golf ball size hail fell in Sterling City, Robert Lee, and Lawn. | |||||||||||
| 39.3 | 1955-06-16 | 2 | 30°43'N / 101°13'W | 3.00 Miles | 333 Yards | 0 | 0 | 0K | 0 | Crockett | |
| 46.1 | 1971-06-21 | 2 | 31°10'N / 100°40'W | 0.30 Mile | 100 Yards | 0 | 0 | 0K | 0 | Irion | |
* 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.