Cle Elum-Roslyn School District Natural Disasters and Weather Extremes
The chance of earthquake damage in Cle Elum-Roslyn School District is lower than Washington average and is higher than the national average. The risk of tornado damage in Cle Elum-Roslyn School District is about the same as Washington average and is much lower than the national average.
Earthquake Index, #55
| Cle Elum-Roslyn School District | 2.87 |
| Washington | 4.04 |
| 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, #86
| Cle Elum-Roslyn School District | 0.0097 |
| Washington | 0.0135 |
| 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, #264
| Cle Elum-Roslyn School District | 1.71 |
| Washington | 9.06 |
| 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 120 other weather extremes events within 50 miles of Cle Elum-Roslyn 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: | 1 | Blizzard: | 0 | Cold: | 0 | Dense Fog: | 0 | Drought: | 0 |
| Dust Storm: | 0 | Flood: | 40 | Hail: | 23 | Heat: | 0 | Heavy Snow: | 3 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 1 |
| Thunderstorm Winds: | 15 | Tropical Storm: | 0 | Wildfire: | 8 | Winter Storm: | 0 | Winter Weather: | 0 |
| Other: | 29 | ||||||||
Volcanos Nearby
A total of 5 volcanoes are found in or near Cle Elum-Roslyn School District.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 47.0 | Rainier | US-Washington, United States | 46.87 | -121.758 | 4392 | Stratovolcano | Dendrochronology | Last known eruption 1800-1899 |
| 61.4 | Glacier Peak | US-Washington, United States | 48.112 | -121.113 | 3213 | Stratovolcano | Tephrochronology | Last known eruption 1700-1799 |
| 76.0 | Adams | US-Washington, United States | 46.206 | -121.49 | 3742 | Stratovolcano | Tephrochronology | Last known eruption A.D. 1-1499 |
| 93.2 | St. Helens | US-Washington, United States | 46.2 | -122.18 | 2549 | Stratovolcano | Historical | Last known eruption 1964 or later |
| 99.7 | Indian Heaven | US-Washington, United States | 45.93 | -121.82 | 1513 | Shield volcano | Radiocarbon | Last known eruption B.C. (Holocene) |
Historical Earthquake Events
A total of 11 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Cle Elum-Roslyn School District.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 38.6 | 1945-04-29 | 5.5 | N/A | 47.4 | -121.7 |
| 43.4 | 1974-04-20 | 4.9 | 5 | 46.76 | -121.52 |
| 39.5 | 1984-04-11 | 4.3 | 8 | 47.53 | -120.19 |
| 1.7 | 1981-02-18 | 4.2 | N/A | 47.21 | -120.9 |
| 49.7 | 1969-10-09 | 4 | N/A | 46.77 | -121.72 |
| 23.2 | 1983-12-05 | 3.8 | 6 | 46.93 | -120.7 |
| 41.7 | 1983-11-14 | 3.8 | 6 | 46.67 | -120.59 |
| 25.8 | 1978-06-27 | 3.7 | 1 | 46.86 | -120.96 |
| 41.7 | 1979-07-28 | 3.7 | N/A | 46.67 | -120.59 |
| 12.1 | 1977-07-13 | 3.6 | N/A | 47.06 | -120.96 |
| 48.6 | 1973-06-09 | 3.5 | N/A | 47.6 | -121.8 |
Historical Tornado Events
A total of 1 historical tornado event that had recorded magnitude of 2 or above found in or near Cle Elum-Roslyn School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 47.8 | 1957-04-30 | 2 | 46°36'N / 120°30'W | 1.00 Mile | 23 Yards | 0 | 0 | 3K | 0 | Yakima |
* 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.