Roseau County Natural Disasters and Weather Extremes
The chance of earthquake damage in Roseau County is about the same as Minnesota average and is much lower than the national average. The risk of tornado damage in Roseau County is much lower than Minnesota average and is much lower than the national average.
Earthquake Index, #55
| Roseau County | 0.00 |
| Minnesota | 0.01 |
| 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, #1
| Roseau County | 0.0000 |
| Minnesota | 0.0000 |
| 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, #76
| Roseau County | 34.09 |
| Minnesota | 135.90 |
| 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 3,308 other weather extremes events within 50 miles of Roseau 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: | 80 | Cold: | 69 | Dense Fog: | 1 | Drought: | 15 |
| Dust Storm: | 0 | Flood: | 279 | Hail: | 1,611 | Heat: | 10 | Heavy Snow: | 48 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 14 | Landslide: | 0 | Strong Wind: | 45 |
| Thunderstorm Winds: | 942 | Tropical Storm: | 0 | Wildfire: | 1 | Winter Storm: | 105 | Winter Weather: | 1 |
| Other: | 87 | ||||||||
Volcanos Nearby
No volcano is found in or near Roseau County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Roseau County.
No historical earthquake events found in or near Roseau County.
Historical Tornado Events
A total of 3 historical tornado events that had recorded magnitude of 2 or above found in or near Roseau County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 11.6 | 1997-06-27 | 2 | 48°48'N / 96°02'W | 48°42'N / 96°07'W | 11.00 Miles | 150 Yards | 0 | 1 | 250K | 0 | Roseau |
| Brief Description: A tornado damaged 2 homes, several farm buildings, and 2 steel grain bins as it struck 10 miles north and 2 miles east of Greenbush. One man barely made it out of his trailer home before the tornado struck. As the tornado travelled between the 2 homes, it came close to a tractor plowing a field. A man in the tractor had glass blown into his eyes as the glass tractor cab shattered. A third home, 3 miles east and 2 miles north of Greenbush, was shifted off its foundation as the tornado passed. The tornado crossed highway 11, damaging a fourth home located 3 miles east of Greenbush, before dissipating. | |||||||||||
| 24.9 | 2006-08-05 | 3 | 48°54'N / 95°20'W | 48°54'N / 95°18'W | 4.00 Miles | 500 Yards | 0 | 0 | 20.0M | 0 | Roseau |
| Brief Description: Tornado number two of a series tracked east-southeast for about 4 miles across the northern part of Warroad. The main tornado appeared to have touched down about a mile west of the Marvin Windows plant complex at the northwest corner of Warroad. The tornado grew to around 500 yards wide as it moved across the Lakeview Park and campground area. The tornado apparently lifted as it passed into Muskeg Bay of the Lake of the Woods. Peak wind speeds were estimated from 160 to 180 mph. Damage was extensive along the tornado path in Warroad. At the Marvin Windows plant, the roof was damaged and 16 semi trailers were overturned. Several of the trailers were full with new windows, which were a complete loss. The nearby Pepsi plant had its sign blown down. At the Warroad City Park and Campground, 30 to 40 campers were destroyed and roughly 10 boats were damaged or sunk. The city pool, which had been recently renovated, was also damaged. The Trading Post Gift Shop was completely destroyed. Many large trees were also snapped off or broken into pieces. Eight to 10 homes also sustained damage. | |||||||||||
| 27.6 | 1983-07-13 | 2 | 48°53'N / 95°15'W | 48°50'N / 95°13'W | 4.00 Miles | 867 Yards | 0 | 0 | 0K | 0 | Roseau |
* 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.