Etiwanda Elementary School District Natural Disasters and Weather Extremes
Hot Rankings
The chance of earthquake damage in Etiwanda Elementary School District is much higher than California average and is much higher than the national average. The risk of tornado damage in Etiwanda Elementary School District is higher than California average and is much lower than the national average.
Earthquake Index, #65
| Etiwanda Elementary School District | 54.02 |
| 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, #546
| Etiwanda Elementary School District | 0.0020 |
| 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, #108
| Etiwanda Elementary School District | 31.00 |
| 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 1,366 other weather extremes events within 50 miles of Etiwanda 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: | 4 | Dense Fog: | 4 | Drought: | 29 |
| Dust Storm: | 5 | Flood: | 415 | Hail: | 50 | Heat: | 7 | Heavy Snow: | 1 |
| High Surf: | 4 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 1 | Strong Wind: | 101 |
| Thunderstorm Winds: | 128 | Tropical Storm: | 0 | Wildfire: | 252 | Winter Storm: | 2 | Winter Weather: | 1 |
| Other: | 362 | ||||||||
Volcanos Nearby
A total of 1 volcano is found in or near Etiwanda Elementary School District.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 66.0 | Lavic Lake | US-California, United States | 34.75 | -116.625 | 1495 | Volcanic field | Holocene | Undated, but probable Holocene eruption |
Historical Earthquake Events
A total of 194 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Etiwanda Elementary School District.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 39.5 | 1918-04-21 | 6.8 | N/A | 33.75 | -117 |
| 46.7 | 1933-03-11 | 6.3 | N/A | 33.58 | -117.98 |
| 17.6 | 1923-07-23 | 6.2 | N/A | 34 | -117.25 |
| 43.8 | 1910-05-15 | 6 | N/A | 33.5 | -117.5 |
| 32.3 | 1943-08-29 | 5.5 | 16 | 34.27 | -116.97 |
| 9.5 | 1970-09-12 | 5.4 | 8 | 34.27 | -117.54 |
| 43.0 | 1933-10-02 | 5.4 | N/A | 33.78 | -118.13 |
| 48.8 | 1941-11-14 | 5.4 | 16 | 33.78 | -118.25 |
| 31.4 | 1938-05-31 | 5.3 | N/A | 33.68 | -117.53 |
| 35.3 | 1930-01-16 | 5.3 | N/A | 34.2 | -116.9 |
| 36.0 | 1963-09-23 | 5.3 | N/A | 33.83 | -117 |
| 42.0 | 1933-03-13 | 5.3 | N/A | 33.75 | -118.08 |
| 36.2 | 1935-10-24 | 5.1 | 16 | 34.1 | -116.88 |
| 45.0 | 1944-06-12 | 5.1 | N/A | 33.97 | -116.75 |
| 39.9 | 1946-09-28 | 5 | N/A | 33.95 | -116.85 |
| 47.6 | 1952-08-23 | 5 | N/A | 34.5 | -118.22 |
| 35.9 | 1979-06-30 | 4.9 | 10 | 34.25 | -116.9 |
| 45.9 | 1933-03-15 | 4.9 | N/A | 33.62 | -118.02 |
| 46.0 | 1941-10-22 | 4.9 | 16 | 33.82 | -118.22 |
| 16.9 | 1985-10-02 | 4.8 | 15 | 34.02 | -117.25 |
| 39.1 | 1962-10-29 | 4.8 | N/A | 34.33 | -116.87 |
| 44.6 | 1973-07-14 | 4.8 | 8 | 34.4 | -116.8 |
| 48.8 | 1971-02-09 | 4.8 | 14 | 34.34 | -118.33 |
| 2.7 | 1948-03-01 | 4.7 | 16 | 34.17 | -117.53 |
| 26.5 | 1956-01-03 | 4.7 | N/A | 33.75 | -117.5 |
| 29.4 | 1929-07-08 | 4.7 | N/A | 34 | -118 |
| 43.9 | 1965-10-17 | 4.7 | N/A | 33.97 | -116.77 |
| 44.5 | 1956-05-11 | 4.7 | N/A | 34.27 | -116.75 |
| 10.5 | 1965-01-01 | 4.6 | N/A | 34 | -117.6 |
| 10.5 | 1965-02-25 | 4.6 | N/A | 34 | -117.6 |
| 13.1 | 1963-07-26 | 4.6 | 19 | 34.03 | -117.32 |
| 24.4 | 1978-04-29 | 4.6 | 5 | 33.83 | -117.73 |
| 2.4 | 1965-04-15 | 4.5 | N/A | 34.1 | -117.5 |
| 5.3 | 1936-02-23 | 4.5 | 10 | 34.12 | -117.42 |
| 11.9 | 1969-05-05 | 4.5 | N/A | 34.3 | -117.57 |
| 35.9 | 1979-06-29 | 4.5 | 6 | 34.25 | -116.9 |
| 38.5 | 1943-10-14 | 4.5 | 16 | 34.33 | -116.88 |
| 39.6 | 1943-10-15 | 4.5 | 16 | 34.33 | -116.86 |
| 43.0 | 1939-12-27 | 4.5 | N/A | 33.78 | -118.13 |
| 43.8 | 1969-10-27 | 4.5 | N/A | 33.55 | -117.81 |
| 44.4 | 1944-06-19 | 4.5 | N/A | 33.87 | -118.22 |
| 47.1 | 1984-08-06 | 4.5 | 14 | 33.98 | -116.71 |
| 48.8 | 1943-11-17 | 4.5 | 16 | 33.92 | -116.7 |
| 10.3 | 1970-09-13 | 4.4 | 8 | 34.28 | -117.55 |
| 35.9 | 1979-06-30 | 4.4 | 10 | 34.25 | -116.9 |
| 41.5 | 1985-08-29 | 4.4 | 6 | 34.32 | -116.82 |
| 48.4 | 1982-11-10 | 4.4 | 8 | 34.06 | -116.67 |
| 10.4 | 1951-09-22 | 4.3 | 12 | 34.12 | -117.33 |
| 36.4 | 1962-11-30 | 4.3 | N/A | 34.33 | -116.92 |
| 36.6 | 1945-04-18 | 4.3 | 16 | 34.43 | -116.98 |
| 37.6 | 1933-10-25 | 4.3 | N/A | 33.95 | -118.13 |
| 38.3 | 1962-12-01 | 4.3 | N/A | 34.32 | -116.88 |
| 41.0 | 1963-08-22 | 4.3 | N/A | 33.7 | -118 |
| 42.3 | 1945-09-07 | 4.3 | 16 | 33.97 | -116.8 |
| 42.5 | 1961-10-20 | 4.3 | N/A | 33.67 | -118 |
| 42.6 | 1950-08-12 | 4.3 | 16 | 34.32 | -116.8 |
| 43.6 | 1961-10-20 | 4.3 | N/A | 33.65 | -118 |
| 45.0 | 1969-02-28 | 4.3 | N/A | 34.56 | -118.11 |
| 45.9 | 1969-02-28 | 4.3 | N/A | 34.57 | -118.12 |
| 3.5 | 1983-01-08 | 4.2 | 8 | 34.13 | -117.45 |
| 4.7 | 1979-10-19 | 4.2 | 7 | 34.2 | -117.53 |
| 23.9 | 1976-01-01 | 4.2 | 6 | 33.97 | -117.88 |
| 26.6 | 1971-06-22 | 4.2 | 8 | 33.75 | -117.48 |
| 29.3 | 1974-09-21 | 4.2 | 8 | 33.77 | -117.25 |
| 31.0 | 1978-11-20 | 4.2 | 5 | 34.15 | -116.97 |
| 31.3 | 1978-04-01 | 4.2 | 6 | 34.2 | -116.97 |
| 43.0 | 1954-04-30 | 4.2 | N/A | 34.03 | -116.77 |
| 43.3 | 1950-08-28 | 4.2 | 12 | 34.3 | -116.78 |
| 4.7 | 1960-06-28 | 4.1 | N/A | 34.13 | -117.43 |
| 6.8 | 1965-07-16 | 4.1 | N/A | 34.1 | -117.4 |
| 9.4 | 1970-09-12 | 4.1 | 8 | 34.27 | -117.52 |
| 23.9 | 1961-10-04 | 4.1 | N/A | 33.85 | -117.75 |
| 24.7 | 1946-02-24 | 4.1 | 16 | 34.4 | -117.8 |
| 28.0 | 1967-06-15 | 4.1 | N/A | 33.99 | -117.97 |
| 32.8 | 1941-01-30 | 4.1 | 16 | 33.97 | -118.05 |
| 33.7 | 1962-04-27 | 4.1 | N/A | 33.73 | -117.18 |
| 41.4 | 1950-01-11 | 4.1 | 1 | 33.95 | -118.2 |
| 42.5 | 1961-10-20 | 4.1 | N/A | 33.67 | -118 |
| 43.3 | 1961-10-20 | 4.1 | N/A | 33.67 | -118.02 |
| 48.8 | 1971-02-09 | 4.1 | 11 | 34.34 | -118.33 |
| 3.7 | 1978-08-11 | 4 | 4 | 34.15 | -117.45 |
| 5.3 | 1936-02-26 | 4 | 10 | 34.12 | -117.42 |
| 6.4 | 1941-03-25 | 4 | 16 | 34.22 | -117.47 |
| 16.2 | 1943-10-24 | 4 | 16 | 33.93 | -117.37 |
| 16.6 | 1941-04-11 | 4 | 16 | 33.9 | -117.58 |
| 17.6 | 1932-11-01 | 4 | 16 | 34 | -117.25 |
| 30.5 | 1951-10-16 | 4 | 16 | 34.17 | -116.98 |
| 30.7 | 1936-08-22 | 4 | 16 | 33.77 | -117.82 |
| 36.2 | 1968-04-18 | 4 | N/A | 34.32 | -116.92 |
| 38.1 | 1972-01-31 | 4 | 8 | 34.31 | -116.88 |
| 38.5 | 1959-06-27 | 4 | N/A | 34.03 | -116.85 |
| 41.2 | 1961-10-20 | 4 | N/A | 33.68 | -117.98 |
| 41.8 | 1961-10-20 | 4 | N/A | 33.67 | -117.98 |
| 41.8 | 1961-10-20 | 4 | N/A | 33.67 | -117.98 |
| 42.0 | 1961-11-20 | 4 | N/A | 33.68 | -118 |
| 42.0 | 1961-11-20 | 4 | N/A | 33.68 | -118 |
| 42.6 | 1932-02-11 | 4 | 16 | 34.42 | -116.85 |
| 43.0 | 1933-11-20 | 4 | N/A | 33.78 | -118.13 |
| 43.4 | 1933-11-13 | 4 | N/A | 33.87 | -118.2 |
| 45.9 | 1933-10-02 | 4 | N/A | 33.62 | -118.02 |
| 46.1 | 1933-05-16 | 4 | N/A | 33.75 | -118.17 |
| 46.5 | 1933-08-04 | 4 | N/A | 33.75 | -118.18 |
| 47.8 | 1971-02-10 | 4 | 1 | 34.37 | -118.3 |
| 48.3 | 1979-08-22 | 4 | 16 | 33.7 | -116.85 |
| 48.9 | 1971-04-25 | 4 | 2 | 34.37 | -118.32 |
| 23.3 | 1979-08-28 | 3.9 | 9 | 34.42 | -117.73 |
| 31.2 | 1950-01-09 | 3.9 | 3 | 34.08 | -116.97 |
| 37.0 | 1951-03-10 | 3.9 | 23 | 34.07 | -116.87 |
| 43.1 | 1933-04-29 | 3.9 | N/A | 33.83 | -118.17 |
| 6.1 | 1960-08-21 | 3.8 | N/A | 34.18 | -117.42 |
| 9.8 | 1960-02-24 | 3.8 | N/A | 34 | -117.57 |
| 15.8 | 1972-09-11 | 3.8 | 8 | 34.09 | -117.24 |
| 17.4 | 1978-09-03 | 3.8 | 6 | 33.95 | -117.72 |
| 27.2 | 1961-01-10 | 3.8 | N/A | 34.28 | -117.07 |
| 36.9 | 1978-07-26 | 3.8 | 6 | 34.35 | -116.92 |
| 39.1 | 1975-01-13 | 3.8 | N/A | 33.82 | -118.08 |
| 40.6 | 1965-10-17 | 3.8 | N/A | 34 | -116.82 |
| 41.8 | 1961-10-20 | 3.8 | N/A | 33.67 | -117.98 |
| 42.5 | 1976-05-10 | 3.8 | 8 | 34.46 | -116.88 |
| 46.4 | 1941-10-22 | 3.8 | 16 | 33.78 | -118.2 |
| 48.1 | 1983-03-01 | 3.8 | 6 | 33.94 | -118.32 |
| 3.5 | 1965-10-10 | 3.7 | N/A | 34.13 | -117.45 |
| 5.0 | 1966-09-02 | 3.7 | N/A | 34.11 | -117.43 |
| 24.4 | 1971-03-02 | 3.7 | 12 | 33.93 | -117.86 |
| 25.4 | 1967-02-21 | 3.7 | N/A | 33.8 | -117.7 |
| 26.2 | 1945-10-31 | 3.7 | 16 | 34.33 | -117.12 |
| 29.4 | 1981-03-18 | 3.7 | 11 | 34.09 | -117 |
| 31.4 | 1977-10-22 | 3.7 | 2 | 34.38 | -117.05 |
| 47.7 | 1984-10-15 | 3.7 | 2 | 33.7 | -118.16 |
| 48.0 | 1970-05-16 | 3.7 | 8 | 34.37 | -116.72 |
| 48.6 | 1973-08-20 | 3.7 | 8 | 34.4 | -118.3 |
| 4.1 | 1967-10-14 | 3.6 | N/A | 34.13 | -117.44 |
| 6.3 | 1970-09-12 | 3.6 | 8 | 34.22 | -117.55 |
| 9.0 | 1983-12-29 | 3.6 | 8 | 34.17 | -117.36 |
| 13.9 | 1981-09-12 | 3.6 | 8 | 34.15 | -117.27 |
| 15.3 | 1959-08-23 | 3.6 | N/A | 34.13 | -117.78 |
| 15.5 | 1983-09-12 | 3.6 | 15 | 34.05 | -117.26 |
| 18.2 | 1948-07-18 | 3.6 | 16 | 34.07 | -117.82 |
| 25.3 | 1971-01-05 | 3.6 | 8 | 34.04 | -117.94 |
| 25.4 | 1973-10-23 | 3.6 | 8 | 33.8 | -117.7 |
| 30.3 | 1958-12-10 | 3.6 | 16 | 34.35 | -117.05 |
| 31.7 | 1985-10-31 | 3.6 | 3 | 34.47 | -117.89 |
| 32.6 | 1948-05-24 | 3.6 | 16 | 33.92 | -118.02 |
| 33.0 | 1981-06-04 | 3.6 | 12 | 33.67 | -117.37 |
| 38.4 | 1973-12-28 | 3.6 | 17 | 33.6 | -117.7 |
| 43.1 | 1948-02-20 | 3.6 | 16 | 33.92 | -118.22 |
| 43.4 | 1945-04-06 | 3.6 | 16 | 34 | -116.77 |
| 46.4 | 1982-07-07 | 3.6 | 11 | 34.15 | -116.7 |
| 49.6 | 1978-12-01 | 3.6 | 5 | 33.93 | -116.68 |
| 4.0 | 1965-02-19 | 3.5 | N/A | 34.18 | -117.47 |
| 6.4 | 1972-10-08 | 3.5 | 8 | 34.22 | -117.47 |
| 6.8 | 1973-04-11 | 3.5 | 8 | 34.1 | -117.4 |
| 8.1 | 1971-07-02 | 3.5 | 8 | 34.25 | -117.53 |
| 8.9 | 1970-09-12 | 3.5 | 8 | 34.26 | -117.54 |
| 9.6 | 1965-10-31 | 3.5 | N/A | 34.22 | -117.38 |
| 9.7 | 1972-11-25 | 3.5 | 8 | 34.02 | -117.61 |
| 12.3 | 1967-02-18 | 3.5 | N/A | 34.1 | -117.3 |
| 12.3 | 1973-03-28 | 3.5 | 8 | 34.1 | -117.3 |
| 14.3 | 1969-10-14 | 3.5 | N/A | 34.33 | -117.59 |
| 16.6 | 1970-11-13 | 3.5 | 8 | 34.19 | -117.23 |
| 18.9 | 1959-08-03 | 3.5 | N/A | 34 | -117.8 |
| 20.2 | 1936-10-24 | 3.5 | 10 | 33.92 | -117.27 |
| 20.6 | 1959-07-23 | 3.5 | N/A | 33.93 | -117.25 |
| 21.3 | 1946-04-19 | 3.5 | 16 | 33.88 | -117.3 |
| 21.3 | 1946-05-12 | 3.5 | 16 | 33.88 | -117.3 |
| 22.5 | 1941-08-10 | 3.5 | 16 | 34.02 | -117.88 |
| 23.4 | 1941-09-13 | 3.5 | 16 | 33.83 | -117.33 |
| 23.4 | 1978-06-04 | 3.5 | 6 | 33.92 | -117.83 |
| 24.0 | 1965-12-03 | 3.5 | N/A | 34.2 | -117.1 |
| 25.0 | 1932-08-30 | 3.5 | 16 | 34.08 | -117.08 |
| 27.2 | 1971-10-10 | 3.5 | 8 | 33.74 | -117.51 |
| 31.5 | 1943-10-29 | 3.5 | 16 | 33.78 | -117.86 |
| 32.2 | 1941-06-04 | 3.5 | 16 | 33.75 | -117.83 |
| 35.1 | 1967-07-12 | 3.5 | N/A | 34.49 | -117.95 |
| 35.3 | 1945-03-27 | 3.5 | 16 | 34.2 | -116.9 |
| 36.8 | 1933-08-29 | 3.5 | N/A | 33.87 | -118.07 |
| 37.5 | 1969-01-13 | 3.5 | N/A | 33.99 | -116.88 |
| 38.1 | 1966-06-13 | 3.5 | N/A | 33.75 | -117.99 |
| 40.0 | 1961-10-21 | 3.5 | N/A | 33.67 | -117.93 |
| 41.4 | 1961-10-20 | 3.5 | N/A | 33.67 | -117.97 |
| 42.5 | 1961-10-21 | 3.5 | N/A | 33.67 | -118 |
| 43.7 | 1948-04-29 | 3.5 | N/A | 33.98 | -116.77 |
| 44.9 | 1965-10-21 | 3.5 | N/A | 33.98 | -116.75 |
| 46.3 | 1941-11-10 | 3.5 | 16 | 33.6 | -118 |
| 46.3 | 1936-03-01 | 3.5 | 16 | 33.98 | -118.3 |
| 47.3 | 1936-09-08 | 3.5 | 16 | 33.57 | -117.98 |
| 47.3 | 1941-12-23 | 3.5 | 15 | 33.57 | -117.98 |
| 47.5 | 1968-07-08 | 3.5 | N/A | 33.99 | -116.7 |
| 48.1 | 1966-10-02 | 3.5 | N/A | 33.97 | -118.33 |
| 48.2 | 1971-02-17 | 3.5 | 5 | 34.36 | -118.31 |
| 48.5 | 1943-10-11 | 3.5 | 16 | 34 | -116.68 |
| 48.9 | 1950-05-13 | 3.5 | 16 | 33.88 | -118.31 |
| 49.5 | 1932-01-31 | 3.5 | 16 | 33.88 | -118.32 |
| 49.6 | 1945-02-06 | 3.5 | 16 | 33.95 | -118.35 |
Historical Tornado Events
A total of 7 historical tornado events that had recorded magnitude of 2 or above found in or near Etiwanda Elementary School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 23.6 | 2008-05-22 | 2 | 33°52'N / 117°15'W | 33°51'N / 117°17'W | 3.00 Miles | 75 Yards | 0 | 1 | 350K | 0K | Riverside |
| Brief Description: EVENT NARRATIVE: Observations from KRIV indicate that this tornado touched down on March Field at 4:42 PM, traveled approximately three miles in a west-southwest direction for 21 minutes, and had a max width of 75 yards. As the tornado crossed Interstate 215, a semi-truck was lifted 30 to 40 feet into the air and nine empty BNSF railroad cars were derailed. The driver of the semi had to be extricated using the ???jaws of life??? and was hospitalized for over a month due to moderate head injuries. The tornado also damaged the roofs of several homes and a trailer on Kuder Ave. It should be noted that another tornado developed nearby while this tornado was in progress. Based on input from Dr. Kisho Mehta and Tim Marshall, damage to the rail cars was consistent with wind gusts up to 120 mph, or an EF-2 tornado. This is the first EF-2 tornado in California since the new scale was implemented in February 2007, and the first F2 tornado in California since the 1998 Sunnyvale tornado. EPISODE NARRATIVE: A thunderstorm developed near Redlands around 3:30 PM and quickly became severe as it moved south-southwest toward Moreno Valley along the Elsinore Convergence Zone. This storm produced large swaths of hail, flash flooding, and at least four tornadoes. | |||||||||||
| 38.8 | 1954-06-25 | 2 | 34°38'N / 117°12'W | 0 | 0 | 0K | 0 | San Bernardino | |||
| 40.7 | 1966-11-07 | 2 | 33°39'N / 117°55'W | 0.20 Mile | 33 Yards | 0 | 0 | 3K | 0 | Orange | |
| 40.8 | 1982-11-09 | 2 | 33°47'N / 118°12'W | 33°53'N / 118°03'W | 10.00 Miles | 1300 Yards | 0 | 0 | 2.5M | 0 | Los Angeles |
| 45.9 | 1966-11-07 | 2 | 33°51'N / 118°20'W | 33°54'N / 118°10'W | 10.30 Miles | 50 Yards | 0 | 10 | 250K | 0 | Los Angeles |
| 47.9 | 1966-11-07 | 2 | 33°54'N / 118°18'W | 0.10 Mile | 33 Yards | 0 | 0 | 3K | 0 | Los Angeles | |
| 49.1 | 1983-03-01 | 2 | 33°59'N / 118°22'W | 34°03'N / 118°21'W | 3.50 Miles | 100 Yards | 0 | 30 | 25.0M | 0 | Los Angeles |
* 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.