Earthquake Information for Napa, California

Napa, CA has a very high earthquake risk, with a total of 105 earthquakes since 1931. The USGS database shows that there is a 96.55% chance of a major earthquake within 50km of Napa, CA within the next 50 years. The largest earthquake within 30 miles of Napa, CA was a 6.0 Magnitude in 2015.

Risk Level:
Very High
Total Number of Earthquakes in Napa, CA since 1931
105

Earthquake Probability for Napa, CA

View the probability of a major earthquake within the next 50 years in Napa, CA.

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2
(within 31 km/51 miles above magnitude)

Probability of Earthquakes Within the Next 50 Years

(within 31 km/51 miles above magnitude)
MAGNITUDE
PROBABILITY
5.0
96.55%
5.1
95.10%
5.2
95.10%
5.2
93.43%
5.3
91.63%
5.4
89.75%
5.5
87.87%
5.6
86.05%
5.7
84.33%
5.8
82.73%
5.9
81.29%
6.0
79.99%
6.1
78.73%
6.2
77.36%
6.3
75.80%
6.4
72.43%
6.5
67.13%
6.6
59.73%
6.7
52.95%
6.8
45.61%
6.9
36.88%
7.0
26.75%
7.1
19.08%
7.2
13.24%
7.3
8.35%
7.4
4.31%
7.5
0.79%
7.6
0.08%
7.7
0.00%
7.8
0.00%
7.9
0.00%
8.0
0.00%
8.1
0.00%
8.2
0.00%
8.3
0.00%
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%