Big Oak Flat-Groveland Unified School District Natural Disasters and Weather Extremes
The chance of earthquake damage in Big Oak Flat-Groveland Unified School District is much lower than California average and is higher than the national average. The risk of tornado damage in Big Oak Flat-Groveland Unified School District is lower than California average and is much lower than the national average.
Earthquake Index, #911
| Big Oak Flat-Groveland Unified School District | 2.42 |
| 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, #151
| Big Oak Flat-Groveland Unified School District | 0.0115 |
| 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, #780
| Big Oak Flat-Groveland Unified School District | 4.91 |
| 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 170 other weather extremes events within 50 miles of Big Oak Flat-Groveland Unified 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: | 1 |
| Dust Storm: | 0 | Flood: | 24 | Hail: | 19 | Heat: | 0 | Heavy Snow: | 0 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 0 |
| Thunderstorm Winds: | 13 | Tropical Storm: | 0 | Wildfire: | 27 | Winter Storm: | 0 | Winter Weather: | 0 |
| Other: | 86 | ||||||||
Volcanos Nearby
A total of 5 volcanoes are found in or near Big Oak Flat-Groveland Unified School District.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 60.0 | Mono Lake Volc Field | US-California, United States | 38 | -119.03 | 2121 | Cinder cone | Tephrochronology | Last known eruption 1700-1799 |
| 60.0 | Inyo Craters | US-California, United States | 37.692 | -119.02 | 2629 | Lava dome | Radiocarbon | Last known eruption A.D. 1-1499 |
| 60.0 | Red Cones | US-California, United States | 37.58 | -119.05 | 2748 | Cinder cone | Holocene | Undated, but probable Holocene eruption |
| 60.5 | Mono Craters | US-California, United States | 37.88 | -119 | 2796 | Lava dome | Radiocarbon | Last known eruption A.D. 1-1499 |
| 68.0 | 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 9 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Big Oak Flat-Groveland Unified School District.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 46.0 | 1933-06-25 | 6.1 | N/A | 38.08 | -119.33 |
| 49.6 | 1979-10-07 | 5 | 9 | 38.22 | -119.35 |
| 45.9 | 1957-06-21 | 4.5 | N/A | 37.7 | -119.28 |
| 49.5 | 1979-10-07 | 4.4 | 11 | 38.23 | -119.36 |
| 31.7 | 1975-08-10 | 4 | N/A | 37.37 | -119.99 |
| 34.1 | 1983-08-09 | 4 | 2 | 37.9 | -119.49 |
| 45.1 | 1981-11-18 | 3.9 | 27 | 37.47 | -119.41 |
| 42.2 | 1965-06-10 | 3.5 | N/A | 38.2 | -119.5 |
| 45.9 | 1941-03-27 | 3.5 | N/A | 37.2 | -119.8 |
Historical Tornado Events
No historical tornado events that had recorded magnitudes of 2 or above found in or near Big Oak Flat-Groveland Unified School District.
No historical earthquake events found in or near Big Oak Flat-Groveland Unified School District.
* 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.