Archuleta County Natural Disasters and Weather Extremes
The chance of earthquake damage in Archuleta County is lower than Colorado average and is lower than the national average. The risk of tornado damage in Archuleta County is much lower than Colorado average and is much lower than the national average.
Earthquake Index, #15
| Archuleta County | 0.38 |
| Colorado | 1.32 |
| 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, #20
| Archuleta County | 0.0009 |
| Colorado | 0.0009 |
| 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, #48
| Archuleta County | 4.34 |
| Colorado | 117.98 |
| 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 680 other weather extremes events within 50 miles of Archuleta County 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: | 7 |
| Dust Storm: | 0 | Flood: | 146 | Hail: | 176 | Heat: | 0 | Heavy Snow: | 0 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 0 |
| Thunderstorm Winds: | 113 | Tropical Storm: | 0 | Wildfire: | 50 | Winter Storm: | 0 | Winter Weather: | 0 |
| Other: | 188 | ||||||||
Volcanos Nearby
A total of 1 volcano is found in or near Archuleta County.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 95.8 | Valles Caldera | US-New Mexico, United States | 35.87 | -106.57 | 3430 | Caldera | Pleistocene-Fumarol | Quaternary eruption(s) with the only known Holocene activity being hydrothermal |
Historical Earthquake Events
A total of 6 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Archuleta County.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 14.3 | 1966-01-23 | 5.5 | N/A | 37 | -107 |
| 16.2 | 1966-05-19 | 4.6 | N/A | 37 | -107.2 |
| 21.1 | 1966-01-23 | 4.6 | N/A | 36.9 | -107 |
| 21.1 | 1966-01-23 | 4.5 | N/A | 36.9 | -107.1 |
| 22.4 | 1966-01-23 | 4.2 | N/A | 36.9 | -107.2 |
| 27.9 | 1966-01-25 | 4 | N/A | 36.8 | -107.1 |
Historical Tornado Events
A total of 1 historical tornado event that had recorded magnitude of 2 or above found in or near Archuleta County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 35.6 | 1997-10-10 | 2 | 37°41'N / 106°55'W | 37°43'N / 106°51'W | 3.00 Miles | 400 Yards | 0 | 0 | 10K | 0 | Mineral |
| Brief Description: A tornado, up to 1/4 mile wide, tracked through the high country of central Mineral county. The 3-mile long track extended from the northeast side of Fisher mountain to Copper mountain, between 10,500 and 11,500 feet above MSL. It snapped off or uprooted tens of thousands of spruce and pine trees and destroyed a horse trailer. Nearby eyewitnesses described a definite twisting motion to the destructive wind. | |||||||||||
* 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.