Manitowoc County Natural Disasters and Weather Extremes
The chance of earthquake damage in Manitowoc County is about the same as Wisconsin average and is much lower than the national average. The risk of tornado damage in Manitowoc County is lower than Wisconsin average and is lower than the national average.
Earthquake Index, #29
| Manitowoc County | 0.00 |
| Wisconsin | 0.00 |
| 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
| Manitowoc County | 0.0000 |
| Wisconsin | 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, #49
| Manitowoc County | 114.20 |
| Wisconsin | 153.98 |
| 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 6,271 other weather extremes events within 50 miles of Manitowoc 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: | 33 | Cold: | 74 | Dense Fog: | 146 | Drought: | 67 |
| Dust Storm: | 0 | Flood: | 285 | Hail: | 1,572 | Heat: | 59 | Heavy Snow: | 284 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 46 | Landslide: | 0 | Strong Wind: | 139 |
| Thunderstorm Winds: | 2,664 | Tropical Storm: | 0 | Wildfire: | 4 | Winter Storm: | 262 | Winter Weather: | 79 |
| Other: | 557 | ||||||||
Volcanos Nearby
No volcano is found in or near Manitowoc County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Manitowoc County.
No historical earthquake events found in or near Manitowoc County.
Historical Tornado Events
A total of 18 historical tornado events that had recorded magnitude of 2 or above found in or near Manitowoc County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 27.2 | 1994-07-05 | 4 | 44°17'N / 87°49'W | 44°19'N / 87°46'W | 3.50 Miles | 150 Yards | 0 | 2 | 5.0M | 500K | Manitowoc |
| 27.6 | 1994-07-05 | 2 | 44°18'N / 87°48'W | 1.00 Mile | 150 Yards | 0 | 0 | 500K | 50K | Manitowoc | |
| 28.4 | 1980-06-07 | 2 | 44°04'N / 87°53'W | 0.20 Mile | 33 Yards | 0 | 0 | 250K | 0 | Manitowoc | |
| 35.6 | 1967-06-30 | 2 | 44°02'N / 88°02'W | 44°02'N / 88°01'W | 0 | 0 | 250K | 0 | Manitowoc | ||
| 36.8 | 1970-04-22 | 2 | 44°36'N / 87°27'W | 44°40'N / 87°23'W | 5.20 Miles | 500 Yards | 0 | 1 | 250K | 0 | Kewaunee |
| 37.6 | 1970-04-22 | 2 | 44°35'N / 87°37'W | 44°40'N / 87°28'W | 8.90 Miles | 500 Yards | 0 | 0 | 250K | 0 | Kewaunee |
| 38.6 | 1974-04-21 | 3 | 43°39'N / 88°10'W | 43°54'N / 87°43'W | 28.10 Miles | 200 Yards | 1 | 7 | 2.5M | 0 | Sheboygan |
| 39.3 | 1967-06-30 | 2 | 44°02'N / 88°10'W | 44°02'N / 88°02'W | 5.90 Miles | 100 Yards | 0 | 1 | 250K | 0 | Calumet |
| 40.4 | 1981-04-04 | 2 | 43°55'N / 88°05'W | 0.10 Mile | 23 Yards | 0 | 6 | 250K | 0 | Calumet | |
| 40.6 | 1970-04-22 | 2 | 44°40'N / 87°28'W | 44°42'N / 87°28'W | 2.30 Miles | 500 Yards | 0 | 2 | 250K | 0 | Door |
| 41.2 | 1970-04-22 | 2 | 44°40'N / 87°23'W | 44°44'N / 87°21'W | 4.30 Miles | 500 Yards | 0 | 0 | 250K | 0 | Door |
| 43.5 | 1970-04-22 | 2 | 44°27'N / 88°02'W | 44°33'N / 87°58'W | 7.20 Miles | 800 Yards | 0 | 1 | 250K | 0 | Brown |
| 43.8 | 1959-05-10 | 2 | 44°29'N / 88°03'W | 44°31'N / 87°58'W | 4.30 Miles | 33 Yards | 0 | 3 | 2.5M | 0 | Brown |
| 44.8 | 1970-04-22 | 2 | 44°28'N / 88°04'W | 44°31'N / 88°01'W | 3.60 Miles | 800 Yards | 0 | 2 | 250K | 0 | Brown |
| 46.1 | 1996-07-18 | 2 | 43°56'N / 88°14'W | 43°53'N / 88°10'W | 4.40 Miles | 200 Yards | 1 | 1 | 450K | 300K | Fond Du Lac |
| Brief Description: A strong tornado (F2) struck Marytown, resulting in 1 fatility (81 year old male) and 1 injury. This tornado actually touched down in Calumet county about 1.1 miles SE of Jericho (see WFO GRB Stormdata report), and then headed southeast into into Fond du Lac county at a point 2.0 NW of Marytown. It destroyed or damaged at least a couple dozen barns, sheds, and homes on a southeastward path. Many large trees were uprooted. The north side of Marytown was hit the hardest, where a house trailer, 3 homes, and a machine shed were destroyed. The tornado exited Fond du Lac county at a point 2.5 miles SE of Marytown and re-entered Calumet county where it quickly dissapated. The path length in Fond du Lac county was 4.4 miles. M81PH | |||||||||||
| 47.4 | 1956-07-01 | 2 | 44°44'N / 87°23'W | 44°51'N / 87°14'W | 10.60 Miles | 50 Yards | 0 | 0 | 250K | 0 | Door |
| 49.4 | 1985-06-08 | 2 | 44°48'N / 87°28'W | 44°50'N / 87°22'W | 5.00 Miles | 150 Yards | 0 | 0 | 2.5M | 0 | Door |
| 49.8 | 1961-09-22 | 2 | 43°39'N / 88°15'W | 43°47'N / 88°04'W | 12.60 Miles | 300 Yards | 0 | 0 | 25K | 0 | Fond Du Lac |
* 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.