Grahn, KY Natural Disasters and Weather Extremes
The chance of earthquake damage in Grahn is about the same as Kentucky average and is much lower than the national average. The risk of tornado damage in Grahn is much lower than Kentucky average and is much lower than the national average.
Earthquake Index, #333
Grahn, KY | 0.09 |
Kentucky | 0.24 |
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
Grahn, KY | 0.0000 |
Kentucky | 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, #673
Grahn, KY | 63.06 |
Kentucky | 136.89 |
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 3,311 other weather extremes events within 50 miles of Grahn, KY 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: | 1 | Cold: | 49 | Dense Fog: | 0 | Drought: | 34 |
Dust Storm: | 0 | Flood: | 616 | Hail: | 791 | Heat: | 36 | Heavy Snow: | 40 |
High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 11 | Landslide: | 0 | Strong Wind: | 34 |
Thunderstorm Winds: | 1,573 | Tropical Storm: | 0 | Wildfire: | 1 | Winter Storm: | 22 | Winter Weather: | 4 |
Other: | 99 |
Volcanos Nearby
No volcano is found in or near Grahn, KY.
Historical Earthquake Events
A total of 3 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Grahn, KY.
Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
46.0 | 1980-07-27 | 5.1 | 8 | 38.17 | -83.91 |
14.3 | 1979-11-09 | 3.5 | 10 | 38.42 | -82.88 |
17.5 | 1983-08-17 | 3.5 | 8 | 38.47 | -82.86 |
Historical Tornado Events
A total of 23 historical tornado events that had recorded magnitude of 2 or above found in or near Grahn, KY.
Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
20.0 | 1980-07-12 | 2 | 38°26'N / 82°46'W | 38°21'N / 82°42'W | 6.60 Miles | 33 Yards | 0 | 0 | 2.5M | 0 | Boyd |
21.3 | 1980-07-12 | 2 | 38°41'N / 83°03'W | 38°26'N / 82°46'W | 23.00 Miles | 300 Yards | 0 | 0 | 2.5M | 0 | Greenup |
25.3 | 1965-04-08 | 3 | 38°22'N / 82°39'W | 38°21'N / 82°35'W | 3.30 Miles | 200 Yards | 0 | 0 | 250K | 0 | Boyd |
26.0 | 1982-06-16 | 2 | 38°35'N / 83°20'W | 38°39'N / 83°14'W | 7.00 Miles | 30 Yards | 0 | 3 | 250K | 0 | Lewis |
26.1 | 1972-09-29 | 2 | 37°54'N / 83°03'W | 1.00 Mile | 50 Yards | 0 | 3 | 25K | 0 | Morgan | |
27.4 | 2003-05-10 | 3 | 38°35'N / 83°37'W | 38°34'N / 83°12'W | 21.00 Miles | 200 Yards | 0 | 17 | 5.0M | 0 | Lewis |
Brief Description: The tornado touched down to the southeast of Maysville, continuing east-southeast into Lewis County. The greatest damage occurred in the Heron Hill area in western Lewis County. Seventeen people were injured in Lewis County. 21 homes were destroyed, 10 homes sustained major damage and 17 homes received minor damage. Numerous barns, buildings and garages were also damaged or destroyed. The tornado appeared to skip across parts of Mason and Lewis Counties. Tornado damage ended four miles to the southeast of Vanceburg. A warm front stalled along the Ohio River, providing the focus for several clusters of thunderstorms to move across northern Kentucky during the early morning, lasting into the afternoon. Rainfall amounts from the thunderstorms generally ranged from three to five inches. The copious amounts of rain caused creeks and streams to rise out of their banks, and many roads were flooded and impassible. | |||||||||||
27.9 | 1982-06-16 | 2 | 38°39'N / 83°14'W | 38°41'N / 83°12'W | 2.00 Miles | 30 Yards | 0 | 0 | 25K | 0 | Scioto |
28.6 | 1965-04-08 | 3 | 38°21'N / 82°35'W | 38°20'N / 82°31'W | 3.60 Miles | 220 Yards | 0 | 3 | 250K | 0 | Wayne |
31.0 | 1968-04-23 | 3 | 38°43'N / 82°57'W | 0 | 5 | 2.5M | 0 | Greenup | |||
36.8 | 1982-06-16 | 2 | 38°24'N / 83°48'W | 38°30'N / 83°38'W | 10.00 Miles | 30 Yards | 0 | 1 | 250K | 0 | Fleming |
37.1 | 1968-04-23 | 5 | 38°42'N / 82°48'W | 38°47'N / 82°39'W | 9.80 Miles | 400 Yards | 7 | 75 | 2.5M | 0 | Scioto |
40.1 | 2003-05-10 | 3 | 38°37'N / 83°43'W | 38°37'N / 83°38'W | 4.00 Miles | 200 Yards | 0 | 0 | 500K | 0 | Mason |
Brief Description: The tornado touched down to the southeast of Maysville, continuing east-southeast into Lewis County. The greatest damage occurred in the Heron Hill area in western Lewis County. Seventeen people were injured in Lewis County. 21 homes were destroyed, 10 homes sustained major damage and 17 homes received minor damage. Numerous barns, buildings and garages were also damaged or destroyed. The tornado appeared to skip across parts of Mason and Lewis Counties. Tornado damage ended four miles to the southeast of Vanceburg. A warm front stalled along the Ohio River, providing the focus for several clusters of thunderstorms to move across northern Kentucky during the early morning, lasting into the afternoon. Rainfall amounts from the thunderstorms generally ranged from three to five inches. The copious amounts of rain caused creeks and streams to rise out of their banks, and many roads were flooded and impassible. | |||||||||||
40.6 | 1967-05-07 | 3 | 38°36'N / 83°42'W | 2.00 Miles | 33 Yards | 0 | 0 | 25K | 0 | Mason | |
40.6 | 1968-04-23 | 2 | 38°49'N / 82°52'W | 38°51'N / 82°47'W | 4.90 Miles | 100 Yards | 0 | 1 | 250K | 0 | Scioto |
40.9 | 1965-04-08 | 3 | 38°52'N / 82°59'W | 2.00 Miles | 100 Yards | 0 | 0 | 250K | 0 | Scioto | |
40.9 | 1968-04-23 | 4 | 38°48'N / 83°42'W | 38°53'N / 82°55'W | 42.50 Miles | 550 Yards | 0 | 0 | 0K | 0 | Adams |
42.2 | 1964-06-15 | 2 | 38°24'N / 83°56'W | 38°25'N / 83°44'W | 10.90 Miles | 33 Yards | 0 | 1 | 25K | 0 | Fleming |
43.2 | 1968-04-23 | 5 | 38°47'N / 82°39'W | 38°48'N / 82°35'W | 3.60 Miles | 400 Yards | 0 | 1 | 0K | 0 | Lawrence |
43.8 | 1981-06-09 | 2 | 38°37'N / 83°48'W | 38°37'N / 83°43'W | 4.10 Miles | 20 Yards | 0 | 7 | 2.5M | 0 | Mason |
46.1 | 1974-04-03 | 3 | 37°59'N / 83°53'W | 38°02'N / 83°49'W | 4.90 Miles | 33 Yards | 0 | 2 | 250K | 0 | Montgomery |
46.4 | 1956-03-07 | 2 | 38°57'N / 83°04'W | 38°57'N / 83°01'W | 1.90 Miles | 440 Yards | 0 | 0 | 25K | 0 | Pike |
47.2 | 1978-08-30 | 2 | 37°52'N / 83°49'W | 37°52'N / 83°43'W | 5.20 Miles | 800 Yards | 0 | 0 | 25K | 0 | Powell |
47.3 | 1974-04-03 | 3 | 38°49'N / 83°36'W | 38°57'N / 83°22'W | 15.50 Miles | 500 Yards | 1 | 0 | 3K | 0 | Adams |
* 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.