Porterville Unified (9-12) School District Natural Disasters and Weather Extremes
The chance of earthquake damage in Porterville Unified (9-12) School District is much lower than California average and is much higher than the national average. The risk of tornado damage in Porterville Unified (9-12) School District is lower than California average and is much lower than the national average.
Earthquake Index, #771
| Porterville Unified (9-12) School District | 3.48 |
| 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, #261
| Porterville Unified (9-12) School District | 0.0068 |
| 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, #733
| Porterville Unified (9-12) School District | 6.52 |
| 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 299 other weather extremes events within 50 miles of Porterville Unified (9-12) 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: | 28 | Hail: | 47 | Heat: | 0 | Heavy Snow: | 1 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 1 |
| Thunderstorm Winds: | 41 | Tropical Storm: | 0 | Wildfire: | 28 | Winter Storm: | 1 | Winter Weather: | 0 |
| Other: | 152 | ||||||||
Volcanos Nearby
A total of 2 volcanoes are found in or near Porterville Unified (9-12) School District.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 40.4 | Golden Trout Creek | US-California, United States | 36.358 | -118.32 | 2886 | Volcanic field | Tephrochronology | Last known eruption B.C. (Holocene) |
| 62.5 | Coso Volc Field | US-California, United States | 36.03 | -117.82 | 2400 | Lava dome | Holocene | Unknown |
Historical Earthquake Events
A total of 42 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Porterville Unified (9-12) School District.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 46.6 | 1952-07-29 | 6.1 | N/A | 35.38 | -118.85 |
| 49.8 | 1952-08-22 | 5.8 | N/A | 35.33 | -118.92 |
| 41.6 | 1985-02-08 | 5 | 11 | 35.45 | -118.9 |
| 35.0 | 1983-10-21 | 4.9 | N/A | 35.93 | -118.33 |
| 8.4 | 1948-02-11 | 4.6 | 12 | 36.1 | -118.8 |
| 43.4 | 1950-04-15 | 4.6 | 16 | 35.75 | -119.62 |
| 28.7 | 1932-07-26 | 4.5 | 16 | 35.8 | -118.53 |
| 48.2 | 1955-08-08 | 4.3 | N/A | 35.4 | -118.63 |
| 34.5 | 1983-10-19 | 4.2 | 1 | 35.93 | -118.34 |
| 38.1 | 1948-09-29 | 4.2 | 16 | 35.5 | -118.97 |
| 45.8 | 1973-09-15 | 4.2 | 18 | 36.6 | -119.4 |
| 12.8 | 1967-04-06 | 4.1 | N/A | 36.2 | -118.8 |
| 35.2 | 1983-10-25 | 4.1 | 1 | 35.87 | -118.35 |
| 35.6 | 1983-11-07 | 4.1 | N/A | 35.93 | -118.32 |
| 40.0 | 1971-03-08 | 4.1 | 6 | 35.67 | -118.4 |
| 47.7 | 1963-12-06 | 4.1 | N/A | 36.4 | -118.2 |
| 41.3 | 1971-03-03 | 4 | 4 | 35.66 | -118.38 |
| 41.7 | 1971-11-24 | 4 | 8 | 35.68 | -118.35 |
| 45.4 | 1943-07-10 | 4 | 16 | 35.73 | -118.23 |
| 48.5 | 1954-02-04 | 4 | N/A | 35.35 | -118.97 |
| 45.6 | 1964-02-07 | 3.9 | N/A | 35.4 | -118.8 |
| 34.7 | 1983-10-19 | 3.8 | N/A | 35.92 | -118.34 |
| 36.3 | 1954-05-25 | 3.8 | N/A | 35.65 | -118.52 |
| 46.4 | 1963-11-21 | 3.8 | 1 | 35.42 | -119.22 |
| 47.9 | 1976-12-05 | 3.8 | 1 | 35.39 | -118.68 |
| 30.4 | 1983-01-17 | 3.7 | 7 | 35.7 | -118.61 |
| 35.2 | 1983-10-25 | 3.7 | 1 | 35.92 | -118.33 |
| 37.8 | 1982-05-31 | 3.7 | 9 | 35.72 | -118.4 |
| 42.8 | 1970-03-24 | 3.7 | 10 | 36.29 | -118.23 |
| 44.5 | 1957-06-28 | 3.7 | N/A | 35.43 | -118.73 |
| 45.0 | 1945-11-14 | 3.7 | 16 | 35.4 | -118.92 |
| 37.9 | 1982-10-19 | 3.6 | 6 | 35.52 | -119.11 |
| 42.3 | 1972-01-06 | 3.6 | 8 | 35.7 | -118.32 |
| 44.9 | 1954-05-12 | 3.6 | N/A | 35.43 | -118.7 |
| 17.9 | 1957-06-05 | 3.5 | N/A | 36.3 | -119.03 |
| 25.5 | 1985-11-05 | 3.5 | 7 | 35.95 | -118.5 |
| 25.7 | 1941-11-12 | 3.5 | 16 | 36.42 | -119 |
| 30.9 | 1951-07-27 | 3.5 | 16 | 35.75 | -118.53 |
| 34.7 | 1961-10-31 | 3.5 | N/A | 35.55 | -118.97 |
| 36.1 | 1969-06-19 | 3.5 | N/A | 36.12 | -119.58 |
| 40.0 | 1941-02-21 | 3.5 | 16 | 35.7 | -118.37 |
| 41.7 | 1932-04-19 | 3.5 | 16 | 35.68 | -118.35 |
Historical Tornado Events
A total of 2 historical tornado events that had recorded magnitude of 2 or above found in or near Porterville Unified (9-12) School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 35.7 | 1980-04-05 | 2 | 36°19'N / 119°33'W | 36°17'N / 119°27'W | 6.10 Miles | 33 Yards | 0 | 0 | 3K | 0 | Tulare |
| 43.2 | 1980-04-05 | 2 | 36°22'N / 119°42'W | 36°19'N / 119°33'W | 8.90 Miles | 10 Yards | 0 | 1 | 250K | 0 | Kings |
* 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.