Earthquake Information for Chugach, Alaska

Chugach, AK has a very high earthquake risk, with a total of 597 earthquakes since 1931. The USGS database shows that there is a 99.05% chance of a major earthquake within 50km of Chugach, AK within the next 50 years. The largest earthquake within 30 miles of Chugach, AK was a 6.5 Magnitude in 1964.

Risk Level:
Very High
Total Number of Earthquakes in Chugach since 1931 within 30 miles
597
Probability of A 5.0 Earthquake within next 50 years
99.05%

Earthquake Probability for Chugach, AK

View the probability of a major earthquake within the next 50 years in Chugach, AK.

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2
(within 31 km/51 miles above magnitude)
MAGNITUDE
PROBABILITY
5.0
99.05%
5.1
98.17%
5.2
98.17%
5.2
96.83%
5.3
94.96%
5.4
92.56%
5.5
89.68%
5.6
86.41%
5.7
82.88%
5.8
79.21%
5.9
75.52%
6.0
71.91%
6.1
68.02%
6.2
64.32%
6.3
60.60%
6.4
57.18%
6.5
53.94%
6.6
50.87%
6.7
48.09%
6.8
45.41%
6.9
43.00%
7.0
40.77%
7.1
35.83%
7.2
31.47%
7.3
27.51%
7.4
23.78%
7.5
20.44%
7.6
17.52%
7.7
15.04%
7.8
12.85%
7.9
10.83%
8.0
9.06%
8.1
7.50%
8.2
7.40%
8.3
7.40%
8.4
7.40%
8.5
7.40%
8.6
7.40%
8.7
7.40%
8.8
7.40%
8.9
7.40%
9.0
7.40%
9.1
7.40%
9.2
7.40%