Earthquake Information for Santa Cruz County, California

Santa Cruz County, CA has a very high earthquake risk, with a total of 251 earthquakes since 1931. The USGS database shows that there is a 99.68% chance of a major earthquake within 50km of Santa Cruz County, CA within the next 50 years. The largest earthquake within 30 miles of Santa Cruz County, CA was a 6.9 Magnitude in 1989.

Risk Level:
Very High
Total Number of Earthquakes in Santa Cruz County since 1931
251
Probability of A 5.0 Earthquake within next 50 years
99.68%

Earthquake Probability for Santa Cruz County, CA

View the probability of a major earthquake within the next 50 years in Santa Cruz County, CA.

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
99.68%
5.1
99.32%
5.2
99.32%
5.2
98.72%
5.3
97.82%
5.4
96.63%
5.5
95.16%
5.6
93.46%
5.7
91.61%
5.8
89.69%
5.9
82.34%
6.0
79.09%
6.1
75.23%
6.2
69.59%
6.3
62.34%
6.4
54.19%
6.5
47.49%
6.6
42.92%
6.7
39.49%
6.8
36.38%
6.9
33.43%
7.0
30.03%
7.1
27.17%
7.2
24.71%
7.3
21.88%
7.4
18.22%
7.5
13.30%
7.6
10.42%
7.7
8.68%
7.8
7.55%
7.9
5.81%
8.0
3.68%
8.1
2.43%
8.2
0.66%
8.3
0.32%
8.4
0.00%
8.5
0.00%
8.6
0.00%
8.7
0.00%
8.8
0.00%
8.9
0.00%
9.0
0.00%
9.1
0.00%
9.2
0.00%