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.
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:
| Type | Count | Type | Count | Type | Count | Type | Count | Type | Count |
| Avalanche: | 0 | Blizzard: | 0 | Cold: | 0 | Dense Fog: | 0 | Drought: | 0 |
| Dust Storm: | 0 | Flood: | 0 | Hail: | 1 | Heat: | 0 | Heavy Snow: | 0 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 0 | Landslide: | 0 | Strong Wind: | 0 |
| Thunderstorm Winds: | 0 | Tropical Storm: | 0 | Wildfire: | 0 | Winter Storm: | 0 | Winter Weather: | 0 |
| Other: | 0 | ||||||||
Volcanos Nearby
A total of 9 volcanoes are found in or near Anchorage Area.
| Distance (miles) | Name | Region | Latitude | Longitude | Elevation (foot) | Type | Status | Last Eruption |
| 99.8 | Hayes | Alaska-SW, United States | 61.62 | -152.48 | 2788 | Stratovolcano | Radiocarbon | Last known eruption A.D. 1-1499 |
| 105.0 | Spurr | Alaska-SW, United States | 61.3 | -152.25 | 3374 | Stratovolcano | Historical | Last known eruption 1964 or later |
| 157.0 | Redoubt | Alaska-SW, United States | 60.48 | -152.75 | 3108 | Stratovolcano | Historical | Last known eruption 1964 or later |
| 472.4 | Aniakchak | Alaska Peninsula, United States | 56.88 | -158.17 | 1341 | Caldera | Historical | Last known eruption 1900-1963 |
| 505.9 | Black Peak | Alaska Peninsula, United States | 56.53 | -158.8 | 1032 | Stratovolcano | Radiocarbon | Last known eruption B.C. (Holocene) |
| 539.0 | Veniaminof | Alaska Peninsula, United States | 56.17 | -159.38 | 2507 | Stratovolcano | Historical | Last known eruption 1964 or later |
| 556.9 | Kupreanof | Alaska Peninsula, United States | 56.02 | -159.8 | 1895 | Stratovolcano | Historical | Last known eruption 1964 or later |
| 566.4 | Unnamed | Alaska Peninsula, United States | 55.93 | -160 | 1555 | Cinder cone | Holocene | Undated, but probable Holocene eruption |
| 611.8 | Dana | Alaska Peninsula, United States | 55.62 | -161.22 | 1354 | Stratovolcano | Radiocarbon | Last 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) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 29.4 | 1929-07-03 | 6.2 | 25 | 62.5 | -149 |
| 20.0 | 1962-05-10 | 6 | 72 | 62 | -150.1 |
| 21.6 | 1975-01-01 | 5.9 | 66 | 61.9 | -149.7 |
| 30.7 | 1984-08-14 | 5.7 | 20 | 61.86 | -149.1 |
| 44.5 | 1966-10-07 | 5.7 | 56 | 61.6 | -150.1 |
| 28.6 | 1966-09-01 | 5.2 | 77 | 61.8 | -149.6 |
| 9.3 | 1978-05-12 | 5.1 | 67 | 62.25 | -149.4 |
| 18.5 | 1974-12-30 | 5.1 | 62 | 61.98 | -149.96 |
| 41.1 | 1981-08-28 | 5.1 | 71 | 61.74 | -150.45 |
| 42.8 | 1974-02-05 | 5 | 75 | 62.7 | -148.85 |
| 8.8 | 1979-02-17 | 4.9 | 54 | 62.31 | -149.5 |
| 34.7 | 1976-10-24 | 4.9 | 75 | 62.65 | -149.14 |
| 25.6 | 1983-10-14 | 4.8 | 38 | 61.85 | -149.52 |
| 35.9 | 1984-03-14 | 4.8 | 67 | 61.7 | -149.86 |
| 7.1 | 1978-12-03 | 4.7 | 74 | 62.31 | -149.75 |
| 19.7 | 1981-09-26 | 4.7 | 58 | 62.01 | -149.25 |
| 38.4 | 1972-10-01 | 4.7 | 76 | 62.7 | -149.1 |
| 5.0 | 1977-09-09 | 4.6 | 59 | 62.19 | -149.53 |
| 31.9 | 1972-04-25 | 4.6 | 58 | 62 | -148.8 |
| 34.0 | 1976-07-15 | 4.6 | 24 | 62.7 | -149.83 |
| 41.4 | 1983-03-10 | 4.6 | 45 | 62.81 | -149.55 |
| 30.0 | 1978-11-24 | 4.5 | 74 | 62.03 | -150.52 |
| 33.2 | 1984-07-25 | 4.4 | 71 | 62.69 | -149.81 |
| 38.2 | 1981-05-05 | 4.4 | 64 | 61.66 | -149.66 |
| 44.1 | 1983-08-19 | 4.4 | 92 | 62.77 | -149 |
| 37.8 | 1981-09-10 | 4.3 | 101 | 62.76 | -149.64 |
| 6.0 | 1982-08-10 | 4.2 | 57 | 62.13 | -149.73 |
| 38.2 | 1984-08-14 | 4.2 | 24 | 61.77 | -148.97 |
| 4.8 | 1978-08-13 | 4.1 | 65 | 62.28 | -149.71 |
| 5.5 | 1977-06-06 | 4.1 | 60 | 62.16 | -149.55 |
| 19.4 | 1979-08-04 | 4.1 | 99 | 62.49 | -149.77 |
| 25.3 | 1969-06-09 | 4.1 | 54 | 62.4 | -149 |
| 28.9 | 1985-03-06 | 4.1 | 10 | 62 | -150.45 |
| 43.6 | 1964-09-23 | 4.1 | 33 | 61.6 | -150 |
| 44.5 | 1964-04-14 | 4.1 | N/A | 61.57 | -149.76 |
| 19.5 | 1968-05-29 | 4 | 51 | 62.3 | -149.1 |
| 19.7 | 1984-06-11 | 4 | 15 | 62.49 | -149.83 |
| 32.2 | 1985-02-13 | 3.9 | 9 | 61.86 | -150.33 |
| 43.8 | 1977-05-11 | 3.9 | 76 | 61.7 | -150.47 |
| 46.6 | 1970-09-17 | 3.9 | 94 | 62.8 | -150.4 |
| 10.6 | 1967-05-08 | 3.8 | N/A | 62.1 | -149.9 |
| 24.9 | 1978-09-20 | 3.8 | 8 | 61.92 | -149.23 |
| 24.9 | 1969-11-07 | 3.8 | 61 | 62 | -150.3 |
| 28.8 | 1971-06-17 | 3.8 | 65 | 61.8 | -149.8 |
| 33.1 | 1973-02-08 | 3.8 | 54 | 61.8 | -150.2 |
| 33.7 | 1984-01-03 | 3.8 | 62 | 61.74 | -149.94 |
| 40.3 | 1965-07-15 | 3.8 | 64 | 61.8 | -148.8 |
| 41.0 | 1985-02-17 | 3.8 | 39 | 61.62 | -149.77 |
| 42.4 | 1970-12-28 | 3.8 | 47 | 61.6 | -149.6 |
| 4.0 | 1969-10-04 | 3.7 | 34 | 62.2 | -149.8 |
| 8.7 | 1985-11-05 | 3.7 | 19 | 62.31 | -149.85 |
| 15.8 | 1977-07-08 | 3.7 | 18 | 62.33 | -150.1 |
| 23.9 | 1985-10-23 | 3.7 | 10 | 62.27 | -150.41 |
| 27.6 | 1972-01-31 | 3.7 | 74 | 62.1 | -150.5 |
| 36.9 | 1970-05-10 | 3.7 | 55 | 61.7 | -150 |
| 38.5 | 1984-08-14 | 3.7 | 15 | 61.78 | -148.93 |
| 43.9 | 1980-07-05 | 3.7 | 49 | 61.61 | -150.11 |
| 13.5 | 1984-06-14 | 3.6 | 88 | 62.38 | -149.46 |
| 29.3 | 1973-08-22 | 3.6 | 83 | 62.6 | -149.3 |
| 39.3 | 1985-11-14 | 3.6 | 7 | 61.67 | -150.04 |
| 39.7 | 1983-05-15 | 3.6 | 54 | 61.65 | -149.93 |
| 21.2 | 1978-10-31 | 3.5 | N/A | 61.91 | -149.57 |
| 31.4 | 1978-01-09 | 3.5 | 9 | 62 | -148.82 |
| 38.8 | 1985-08-07 | 3.5 | 13 | 61.79 | -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.