Mark Twain Union Elementary School District Natural Disasters and Weather Extremes
The chance of earthquake damage in Mark Twain Union Elementary School District is much lower than California average and is higher than the national average. The risk of tornado damage in Mark Twain Union Elementary School District is about the same as California average and is much lower than the national average.
Earthquake Index, #932
| Mark Twain Union Elementary School District | 2.19 |
| California | 21.80 |
| 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, #280
| Mark Twain Union Elementary School District | 0.0063 |
| California | 0.0068 |
| 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, #605
| Mark Twain Union Elementary School District | 9.89 |
| California | 18.56 |
| 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 179 other weather extremes events within 50 miles of Mark Twain Union Elementary 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: | 1 | Drought: | 1 |
| Dust Storm: | 0 | Flood: | 22 | Hail: | 10 | Heat: | 0 | Heavy Snow: | 0 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 0 |
| Thunderstorm Winds: | 10 | Tropical Storm: | 0 | Wildfire: | 27 | Winter Storm: | 0 | Winter Weather: | 0 |
| Other: | 108 | ||||||||
Volcanos Nearby
A total of 5 volcanoes are found in or near Mark Twain Union Elementary School District.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 85.6 | Mono Lake Volc Field | US-California, United States | 38 | -119.03 | 2121 | Cinder cone | Tephrochronology | Last known eruption 1700-1799 |
| 87.8 | Mono Craters | US-California, United States | 37.88 | -119 | 2796 | Lava dome | Radiocarbon | Last known eruption A.D. 1-1499 |
| 89.0 | Inyo Craters | US-California, United States | 37.692 | -119.02 | 2629 | Lava dome | Radiocarbon | Last known eruption A.D. 1-1499 |
| 89.7 | Red Cones | US-California, United States | 37.58 | -119.05 | 2748 | Cinder cone | Holocene | Undated, but probable Holocene eruption |
| 96.9 | Long Valley | US-California, United States | 37.7 | -118.87 | 3390 | Caldera | Pleistocene-Fumarol | Quaternary eruption(s) with the only known Holocene activity being hydrothermal |
Historical Earthquake Events
A total of 1 historical earthquake event that had a recorded magnitude of 3.5 or above found in or near Mark Twain Union Elementary School District.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 43.7 | 1977-10-13 | 3.7 | 10 | 37.47 | -121.03 |
Historical Tornado Events
A total of 1 historical tornado event that had recorded magnitude of 2 or above found in or near Mark Twain Union Elementary School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 32.7 | 1953-04-27 | 2 | 37°39'N / 121°00'W | 0 | 0 | 3K | 0 | Stanislaus |
* 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.