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Anchorage Metro Area Natural Disasters and Weather Extremes

 

The chance of earthquake damage in Anchorage Area is much higher than Alaska average and is much higher than the national average. The risk of tornado damage in Anchorage 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, #25

Anchorage Area
7.37
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, #83

Anchorage Area
0.0022
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

Anchorage 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 1 other weather extremes events within 50 miles of Anchorage 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:1Heat: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 9 volcanoes are found in or near Anchorage Area.

Distance (miles)NameRegionLatitudeLongitudeElevation (foot)TypeStatusLast Eruption
99.8HayesAlaska-SW, United States61.62-152.482788StratovolcanoRadiocarbonLast known eruption A.D. 1-1499
105.0SpurrAlaska-SW, United States61.3-152.253374StratovolcanoHistoricalLast known eruption 1964 or later
157.0RedoubtAlaska-SW, United States60.48-152.753108StratovolcanoHistoricalLast known eruption 1964 or later
472.4AniakchakAlaska Peninsula, United States56.88-158.171341CalderaHistoricalLast known eruption 1900-1963
505.9Black PeakAlaska Peninsula, United States56.53-158.81032StratovolcanoRadiocarbonLast known eruption B.C. (Holocene)
539.0VeniaminofAlaska Peninsula, United States56.17-159.382507StratovolcanoHistoricalLast known eruption 1964 or later
556.9KupreanofAlaska Peninsula, United States56.02-159.81895StratovolcanoHistoricalLast known eruption 1964 or later
566.4UnnamedAlaska Peninsula, United States55.93-1601555Cinder coneHoloceneUndated, but probable Holocene eruption
611.8DanaAlaska Peninsula, United States55.62-161.221354StratovolcanoRadiocarbonLast known eruption B.C. (Holocene)

Historical Earthquake Events

A total of 64 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Anchorage Area.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude
29.41929-07-036.22562.5-149
20.01962-05-1067262-150.1
21.61975-01-015.96661.9-149.7
30.71984-08-145.72061.86-149.1
44.51966-10-075.75661.6-150.1
28.61966-09-015.27761.8-149.6
9.31978-05-125.16762.25-149.4
18.51974-12-305.16261.98-149.96
41.11981-08-285.17161.74-150.45
42.81974-02-0557562.7-148.85
8.81979-02-174.95462.31-149.5
34.71976-10-244.97562.65-149.14
25.61983-10-144.83861.85-149.52
35.91984-03-144.86761.7-149.86
7.11978-12-034.77462.31-149.75
19.71981-09-264.75862.01-149.25
38.41972-10-014.77662.7-149.1
5.01977-09-094.65962.19-149.53
31.91972-04-254.65862-148.8
34.01976-07-154.62462.7-149.83
41.41983-03-104.64562.81-149.55
30.01978-11-244.57462.03-150.52
33.21984-07-254.47162.69-149.81
38.21981-05-054.46461.66-149.66
44.11983-08-194.49262.77-149
37.81981-09-104.310162.76-149.64
6.01982-08-104.25762.13-149.73
38.21984-08-144.22461.77-148.97
4.81978-08-134.16562.28-149.71
5.51977-06-064.16062.16-149.55
19.41979-08-044.19962.49-149.77
25.31969-06-094.15462.4-149
28.91985-03-064.11062-150.45
43.61964-09-234.13361.6-150
44.51964-04-144.1N/A61.57-149.76
19.51968-05-2945162.3-149.1
19.71984-06-1141562.49-149.83
32.21985-02-133.9961.86-150.33
43.81977-05-113.97661.7-150.47
46.61970-09-173.99462.8-150.4
10.61967-05-083.8N/A62.1-149.9
24.91978-09-203.8861.92-149.23
24.91969-11-073.86162-150.3
28.81971-06-173.86561.8-149.8
33.11973-02-083.85461.8-150.2
33.71984-01-033.86261.74-149.94
40.31965-07-153.86461.8-148.8
41.01985-02-173.83961.62-149.77
42.41970-12-283.84761.6-149.6
4.01969-10-043.73462.2-149.8
8.71985-11-053.71962.31-149.85
15.81977-07-083.71862.33-150.1
23.91985-10-233.71062.27-150.41
27.61972-01-313.77462.1-150.5
36.91970-05-103.75561.7-150
38.51984-08-143.71561.78-148.93
43.91980-07-053.74961.61-150.11
13.51984-06-143.68862.38-149.46
29.31973-08-223.68362.6-149.3
39.31985-11-143.6761.67-150.04
39.71983-05-153.65461.65-149.93
21.21978-10-313.5N/A61.91-149.57
31.41978-01-093.5962-148.82
38.81985-08-073.51361.79-148.89

Historical Tornado Events

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

No historical earthquake events found in or near Anchorage 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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