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Ketchikan Micro Area Natural Disasters and Weather Extremes

 

The chance of earthquake damage in Ketchikan Area is much lower than Alaska average and is much lower than the national average. The risk of tornado damage in Ketchikan Area is about the same as Alaska average and is much lower than the national average.

Topics:Earthquake IndexVolcano IndexTornado IndexOther Weather Extremes EventsVolcanos NearbyHistorical Earthquake EventsHistorical Tornado Events

Earthquake Index, #786

Ketchikan Area
0.00
Alaska
3.28
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, #33

Ketchikan Area
0.0168
Alaska
0.0226
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, #938

Ketchikan Area
0.00
Alaska
0.01
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 0 other weather extremes events within 50 miles of Ketchikan Area were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:0Cold:0Dense Fog:0Drought:0
Dust Storm:0Flood:0Hail:0Heat:0Heavy Snow:0
High Surf:0Hurricane:0Ice Storm:0Landslide:0Strong Wind:0
Thunderstorm Winds:0Tropical Storm:0Wildfire:0Winter Storm:0Winter Weather:0
Other:0 

Volcanos Nearby

A total of 6 volcanoes are found in or near Ketchikan Area.

Distance (miles)NameRegionLatitudeLongitudeElevation (foot)TypeStatusLast Eruption
9.2Behm Canal-Rudyerd BayAlaska-SE, United States55.32-131.05500Cinder coneHoloceneUnknown
62.3Crow LagoonCanada, Canada54.7-130.23335Pyroclastic coneHoloceneUndated, but probable Holocene eruption
80.9Iskut-Unuk River ConesCanada, Canada56.58-130.551880Cinder coneRadiocarbonLast known eruption 1800-1899
87.2Tlevak Strait-Suemez Is.Alaska-SE, United States55.25-133.350Volcanic fieldHoloceneUndated, but probable Holocene eruption
92.1Hoodoo MountainCanada, Canada56.78-131.281820Subglacial volcanoHoloceneUndated, but probable Holocene eruption
105.8Duncan CanalAlaska-SE, United States56.5-133.115UnknownHoloceneUndated, but probable Holocene eruption

Historical Earthquake Events

No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Ketchikan Area.

No historical earthquake events found in or near Ketchikan Area.

Historical Tornado Events

No historical tornado events that had recorded magnitudes of 2 or above found in or near Ketchikan Area.

No historical earthquake events found in or near Ketchikan 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.


 
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