The Dalles Micro Area Natural Disasters and Weather Extremes
The chance of earthquake damage in The Dalles Area is lower than Oregon average and is much lower than the national average. The risk of tornado damage in The Dalles Area is about the same as Oregon average and is much lower than the national average.
Earthquake Index, #268
| The Dalles Area | 0.19 |
| Oregon | 0.62 |
| 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, #21
| The Dalles Area | 0.0304 |
| Oregon | 0.0291 |
| 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, #932
| The Dalles Area | 0.45 |
| Oregon | 8.38 |
| 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 711 other weather extremes events within 50 miles of The Dalles Area 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: | 76 | Hail: | 253 | Heat: | 0 | Heavy Snow: | 3 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 8 |
| Thunderstorm Winds: | 118 | Tropical Storm: | 0 | Wildfire: | 31 | Winter Storm: | 0 | Winter Weather: | 0 |
| Other: | 222 | ||||||||
Volcanos Nearby
A total of 15 volcanoes are found in or near The Dalles Area.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 29.5 | Hood | US-Oregon, United States | 45.374 | -121.694 | 3426 | Stratovolcano | Historical | Last known eruption 1800-1899 |
| 45.0 | Jefferson | US-Oregon, United States | 44.692 | -121.8 | 3199 | Stratovolcano | Varve Count | Last known eruption A.D. 1-1499 |
| 59.3 | Blue Lake Crater | US-Oregon, United States | 44.42 | -121.77 | 1230 | Maar | Radiocarbon | Last known eruption B.C. (Holocene) |
| 61.6 | Indian Heaven | US-Washington, United States | 45.93 | -121.82 | 1513 | Shield volcano | Radiocarbon | Last known eruption B.C. (Holocene) |
| 65.9 | Sand Mountain Field | US-Oregon, United States | 44.38 | -121.93 | 1664 | Cinder cone | Radiocarbon | Last known eruption B.C. (Holocene) |
| 66.3 | Washington | US-Oregon, United States | 44.332 | -121.837 | 2376 | Shield volcano | Radiocarbon | Last known eruption A.D. 1-1499 |
| 66.3 | West Crater | US-Washington, United States | 45.88 | -122.08 | 1329 | Volcanic field | Radiocarbon | Last known eruption B.C. (Holocene) |
| 69.2 | Belknap | US-Oregon, United States | 44.285 | -121.841 | 2095 | Shield volcano | Radiocarbon | Last known eruption A.D. 1-1499 |
| 73.6 | Adams | US-Washington, United States | 46.206 | -121.49 | 3742 | Stratovolcano | Tephrochronology | Last known eruption A.D. 1-1499 |
| 74.8 | North Sister Field | US-Oregon, United States | 44.17 | -121.77 | 3074 | Complex volcano | Radiocarbon | Last known eruption A.D. 1-1499 |
| 79.3 | South Sister | US-Oregon, United States | 44.1 | -121.77 | 3157 | Complex volcano | Radiocarbon | Last known eruption B.C. (Holocene) |
| 85.8 | Bachelor | US-Oregon, United States | 43.979 | -121.688 | 2763 | Stratovolcano | Tephrochronology | Last known eruption B.C. (Holocene) |
| 86.6 | St. Helens | US-Washington, United States | 46.2 | -122.18 | 2549 | Stratovolcano | Historical | Last known eruption 1964 or later |
| 99.7 | Newberry Volcano | US-Oregon, United States | 43.722 | -121.229 | 2434 | Shield volcano | Radiocarbon | Last known eruption A.D. 1-1499 |
| 121.1 | Rainier | US-Washington, United States | 46.87 | -121.758 | 4392 | Stratovolcano | Dendrochronology | Last known eruption 1800-1899 |
Historical Earthquake Events
A total of 2 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near The Dalles Area.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 19.6 | 1976-04-13 | 4.6 | 15 | 45.22 | -120.77 |
| 18.7 | 1976-04-17 | 4.2 | 2 | 45.08 | -120.8 |
Historical Tornado Events
No historical tornado events that had recorded magnitudes of 2 or above found in or near The Dalles Area.
No historical earthquake events found in or near The Dalles Area.
* 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.