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Port Graham, AK Natural Disasters and Weather Extremes

 
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The chance of earthquake damage in Port Graham is higher than Alaska average and is much higher than the national average. The risk of tornado damage in Port Graham 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, #75

Port Graham, AK
4.39
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, #74

Port Graham, AK
0.0098
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, #14

Port Graham, AK
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 Port Graham, AK 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 5 volcanoes are found in or near Port Graham, AK.

Distance (miles)NameRegionLatitudeLongitudeElevation (foot)TypeStatusLast Eruption
55.4AugustineAlaska-SW, United States59.37-153.421252Lava domeHistoricalLast known eruption 1964 or later
64.2IliamnaAlaska-SW, United States60.03-153.083053StratovolcanoHistoricalLast known eruption 1900-1963
68.6DouglasAlaska Peninsula, United States58.87-153.552140StratovolcanoFumarolicUndated, but probable Holocene eruption
76.1FourpeakedAlaska Peninsula, United States58.77-153.682104StratovolcanoUncertainUnknown
84.7RedoubtAlaska-SW, United States60.48-152.753108StratovolcanoHistoricalLast known eruption 1964 or later

Historical Earthquake Events

A total of 30 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Port Graham, AK.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
12.21963-06-246.75259.5-151.7
45.91958-01-246.56060-152
16.41959-12-266.3N/A59.5-151.5
45.91931-12-246.210060-152
28.21978-02-125.47259.45-152.62
16.21967-08-1755559.4-151.4
17.11985-10-094.89859.44-152.29
23.71982-01-124.86859.07-152.26
29.21982-07-064.86959.22-152.64
18.71977-12-084.76559.45-151.36
14.01984-10-044.66359.15-151.71
21.61983-10-134.66359.63-152.08
24.41985-09-224.65359.11-151.32
34.41985-12-314.63859.78-152.31
44.71977-10-164.68259.88-152.55
17.91985-05-124.510259.4-152.34
34.61985-12-254.59459.78-152.32
40.11974-07-294.58459.71-152.73
48.81969-03-214.510559.9-152.7
25.81980-03-024.41359.62-151.36
27.91985-08-034.49259.72-152.12
37.31980-09-134.310059.84-152.25
0.91981-04-244.23359.35-151.83
6.61980-08-1345359.25-151.78
35.51965-09-233.95759.8-152.3
45.61971-05-183.97460-151.9
14.51983-12-293.83359.53-151.67
44.81985-01-273.84659.94-151.36
25.01978-12-023.71359.69-151.66
39.01974-09-103.78659.9-151.71

Historical Tornado Events

No historical tornado events that had recorded magnitudes of 2 or above found in or near Port Graham, AK.

No historical earthquake events found in or near Port Graham, AK.


* 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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