Earthquake Information for St. Helena, California

St. Helena, CA has a very high earthquake risk, with a total of 39,479 earthquakes since 1931. The USGS database shows that there is a 96.34% chance of a major earthquake within 50km of St. Helena, CA within the next 50 years. The largest earthquake within 30 miles of St. Helena, CA was a 6.0 Magnitude in 2014.

Risk Level:
Very High

Total Number of Earthquakes in St. Helena since 1931 within 30 miles

39,479

Probability of A 5.0 Earthquake within next 50 years

96.34%

Most Recent
Largest

5/6/2024 - 0.7 mag, 2.0mi depth 4.64978 mi from Cobb, CA
5/5/2024 - 0.4 mag, 2.1mi depth 4.75858 mi from Cobb, CA
5/5/2024 - 0.8 mag, 2.1mi depth 3.30519 mi from Cobb, CA
5/5/2024 - 1.4 mag, 1.9mi depth 4.14746 mi from Cobb, CA
5/5/2024 - 0.2 mag, 2.0mi depth 4.06275 mi from Cobb, CA
5/5/2024 - 0.8 mag, 2.1mi depth 4.8383 mi from Cobb, CA
5/5/2024 - 1.1 mag, 1.7mi depth 4.31776 mi from Cobb, CA
5/5/2024 - 0.9 mag, 1.7mi depth 4.99978 mi from Cobb, CA
5/5/2024 - 0.4 mag, 1.1mi depth 2.24544 mi from Cobb, CA
5/5/2024 - 0.7 mag, 2.0mi depth 3.97234 mi from Cobb, CA
5/5/2024 - 0.3 mag, 0.5mi depth 2.56284 mi from Cobb, CA
5/5/2024 - 0.4 mag, 1.9mi depth 3.95159 mi from Cobb, CA
5/4/2024 - 0.3 mag, 4.3mi depth 4.85633 mi from Cobb, CA
5/4/2024 - 0.6 mag, 8.3mi depth 4.21684 mi from Cobb, CA
5/4/2024 - 0.7 mag, 1.6mi depth 4.28314 mi from Cobb, CA
5/4/2024 - 0.6 mag, 10.5mi depth 2.59903 mi from Cobb, CA
5/4/2024 - 2.5 mag, 1.7mi depth 3.64966 mi from Cobb, CA
5/4/2024 - 1.5 mag, 1.5mi depth 3.73284 mi from Cobb, CA
5/4/2024 - 1.1 mag, 1.8mi depth 3.6638 mi from Cobb, CA
5/4/2024 - 0.8 mag, 1.9mi depth 3.49373 mi from Cobb, CA
5/4/2024 - 0.9 mag, 1.5mi depth 3.83318 mi from Cobb, CA
5/4/2024 - 0.7 mag, 1.5mi depth 4.22892 mi from Cobb, CA
5/4/2024 - 1.2 mag, 0.9mi depth 2.60699 mi from Cobb, CA
5/4/2024 - 1.3 mag, 1.9mi depth 3.98665 mi from Cobb, CA
5/4/2024 - 0.3 mag, 1.6mi depth 4.46268 mi from Cobb, CA
5/3/2024 - 1.1 mag, 2.1mi depth 2.39612 mi from Cobb, CA
5/3/2024 - 0.9 mag, 13.5mi depth 3.97816 mi from Cobb, CA
5/3/2024 - 0.5 mag, 2.1mi depth 2.34372 mi from Cobb, CA
5/3/2024 - 0.4 mag, -0.3mi depth 1.94668 mi from Cobb, CA
5/3/2024 - 1.1 mag, 1.7mi depth 2.62503 mi from Cobb, CA
5/3/2024 - 0.6 mag, 1.4mi depth 5.05357 mi from Cobb, CA
5/3/2024 - 0.2 mag, 2.3mi depth 4.06154 mi from Cobb, CA
5/3/2024 - 1.0 mag, 2.0mi depth 4.72046 mi from Cobb, CA
5/3/2024 - 0.8 mag, 1.9mi depth 4.27936 mi from Cobb, CA
5/3/2024 - 0.7 mag, 0.6mi depth 3.56116 mi from Cobb, CA
5/3/2024 - 0.7 mag, 1.4mi depth 5.0118 mi from Cobb, CA
5/3/2024 - 0.7 mag, 2.4mi depth 4.07635 mi from Cobb, CA
5/3/2024 - 0.2 mag, 0.9mi depth 3.83838 mi from Cobb, CA
5/3/2024 - 1.0 mag, 1.5mi depth 3.70005 mi from Cobb, CA
5/3/2024 - 0.2 mag, 8.2mi depth 4.26862 mi from Cobb, CA
5/3/2024 - 0.8 mag, 5.1mi depth 3.95593 mi from Cobb, CA
5/3/2024 - 1.1 mag, 1.8mi depth 2.62569 mi from Cobb, CA
5/3/2024 - 1.1 mag, 1.7mi depth 2.0341 mi from Cobb, CA
5/3/2024 - 0.3 mag, 9.7mi depth 3.01104 mi from Cobb, CA
5/3/2024 - 1.0 mag, 2.0mi depth 4.5063 mi from Cobb, CA
5/2/2024 - 0.7 mag, 1.8mi depth 4.53304 mi from Cobb, CA
5/2/2024 - 1.1 mag, 2.3mi depth 4.52442 mi from Cobb, CA
5/2/2024 - 0.8 mag, 0.9mi depth 4.99943 mi from Cobb, CA
5/2/2024 - 0.8 mag, 1.3mi depth 3.65439 mi from Cobb, CA
5/2/2024 - 1.4 mag, -0.3mi depth 5.01129 mi from Angwin, CA

8/24/2014 - 6.0 mag, 10.8mi depth 4.17432 mi from American Canyon, CA
10/2/1969 - 5.7 mag, 15.0mi depth 3.3136 mi from Cotati, CA
9/3/2000 - 5.0 mag, 10.2mi depth 2.7448 mi from Yountville, CA
5/12/2006 - 4.8 mag, 2.9mi depth 5.2108 mi from Cobb, CA
9/4/1995 - 4.6 mag, 7.3mi depth 7.7546 mi from Healdsburg, CA
2/18/2004 - 4.5 mag, 3.6mi depth 2.2929 mi from Cobb, CA
1/12/2014 - 4.5 mag, 2.6mi depth 5.26777 mi from Cobb, CA
3/14/2013 - 4.5 mag, 2.2mi depth 3.7835 mi from Cobb, CA
8/14/1990 - 4.5 mag, 3.0mi depth 3.8051 mi from Cobb, CA
1/10/2000 - 4.4 mag, 6.2mi depth 2.7978 mi from Geyserville, CA
4/11/2023 - 4.4 mag, 2.0mi depth 4.54207 mi from Cobb, CA
12/8/2000 - 4.4 mag, 4.1mi depth 4.3973 mi from Cobb, CA
3/1/2011 - 4.4 mag, 3.0mi depth 5.4367 mi from Cobb, CA
9/13/2022 - 4.4 mag, 7.5mi depth 1.94914 mi from Santa Rosa, CA
12/4/1996 - 4.4 mag, 1.9mi depth 3.556 mi from Cobb, CA
5/5/2012 - 4.4 mag, 2.8mi depth 3.3875 mi from Cobb, CA
1/27/1990 - 4.4 mag, 7.0mi depth 3.4358 mi from Cobb, CA
4/24/2007 - 4.4 mag, 2.5mi depth 4.8427 mi from Cobb, CA
8/3/2006 - 4.4 mag, 8.9mi depth 2.4925 mi from Glen Ellen, CA
2/13/2012 - 4.3 mag, 1.4mi depth 3.1274 mi from Cobb, CA
5/9/2005 - 4.3 mag, 0.3mi depth 3.6856 mi from Cobb, CA
5/29/1982 - 4.3 mag, 5.0mi depth 6.39 mi from Cobb, CA
12/27/2004 - 4.3 mag, 3.7mi depth 5.6052 mi from Middletown, CA
1/18/2000 - 4.3 mag, 7.4mi depth 2.3364 mi from Geyserville, CA
10/3/2003 - 4.3 mag, 2.5mi depth 4.7291 mi from Cobb, CA
9/22/1999 - 4.3 mag, 7.0mi depth 4.7239 mi from Rohnert Park, CA
8/3/2003 - 4.2 mag, 1.7mi depth 3.5596 mi from Cobb, CA
9/17/1973 - 4.2 mag, 2.0mi depth 9.452 mi from Esparto, CA
1/4/2009 - 4.2 mag, 4.3mi depth 4.494 mi from Cobb, CA
5/25/2003 - 4.2 mag, 5.4mi depth 0.8639 mi from Santa Rosa, CA
6/28/2022 - 4.2 mag, 0.3mi depth 1.49677 mi from Cobb, CA
9/22/1984 - 4.2 mag, 2.0mi depth 5.0821 mi from Cobb, CA
1/17/1994 - 4.1 mag, 11.3mi depth 5.408 mi from Hidden Valley Lake, CA
2/18/1999 - 4.1 mag, 2.2mi depth 4.351 mi from Cobb, CA
4/3/1990 - 4.1 mag, 2.0mi depth 3.7981 mi from Cobb, CA
5/8/2005 - 4.1 mag, 9.6mi depth 4.7643 mi from Moskowite Corner, CA
11/18/1996 - 4.1 mag, 3.4mi depth 3.1738 mi from Cobb, CA
3/15/1990 - 4.1 mag, 4.0mi depth 4.0023 mi from Cobb, CA
6/9/1990 - 4.1 mag, 4.0mi depth 2.8734 mi from Cobb, CA
1/26/2024 - 4.1 mag, 9.0mi depth 4.11637 mi from Cobb, CA
5/30/2008 - 4.1 mag, 1.9mi depth 4.6706 mi from Cobb, CA
9/19/1989 - 4.1 mag, 4.0mi depth 3.7831 mi from Cobb, CA
9/12/1974 - 4.1 mag, 8.0mi depth 4.2023 mi from Cobb, CA
5/21/2015 - 4.1 mag, 8.9mi depth 6.22855 mi from Yountville, CA
7/15/2010 - 4.0 mag, 2.9mi depth 4.6899 mi from Cobb, CA
2/24/2008 - 4.0 mag, 2.4mi depth 4.8112 mi from Cobb, CA
7/30/2003 - 4.0 mag, 5.1mi depth 2.5423 mi from Geyserville, CA
4/18/2002 - 4.0 mag, 3.6mi depth 4.1499 mi from Cobb, CA
12/25/1998 - 4.0 mag, 5.3mi depth 3.9925 mi from Cobb, CA
9/22/1977 - 4.0 mag, 5.0mi depth 4.6988 mi from Windsor, CA

View All

Earthquake Probability for St. Helena, CA

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

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2

(within 31 km/51 miles above magnitude)

5.0

96.34%

5.1

94.88%

5.2

94.88%

5.2

93.23%

5.3

91.46%

5.4

89.64%

5.5

87.83%

5.6

86.09%

5.7

84.45%

5.8

82.95%

5.9

81.58%

6.0

80.37%

6.1

79.15%

6.2

77.83%

6.3

76.29%

6.4

72.86%

6.5

68.70%

6.6

62.35%

6.7

56.38%

6.8

49.74%

6.9

41.68%

7.0

32.13%

7.1

24.30%

7.2

17.33%

7.3

10.71%

7.4

5.21%

7.5

0.85%

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%

Earthquake Count for St. Helena, CA

View the number of earthquake incidents in St. Helena, CA by year that are more than 2.5 Magnitude.

List of Earthquake Incidents for St. Helena, CA

Total Number of Earthquakes in St. Helena, CA within 30 miles. All distances and depths in the table are measured in miles.

05/06/2024

0.7

2.0

4.65

Earthquake Information for St. Helena, California

Earthquake Probability for St. Helena, CA

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2

Earthquake Count for St. Helena, CA

List of Earthquake Incidents for St. Helena, CA

Risk Of Natural Disasters In St. Helena, CA

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