Earthquake Information for Union City, California

Union City, CA has a very high earthquake risk, with a total of 6,696 earthquakes since 1931. The USGS database shows that there is a 99.64% chance of a major earthquake within 50km of Union City, CA within the next 50 years. The largest earthquake within 30 miles of Union City, CA was a 6.1 Magnitude in 1984.

Risk Level:
Very High

Total Number of Earthquakes in Union City since 1931 within 30 miles

6,696

Probability of A 5.0 Earthquake within next 50 years

99.64%

Most Recent
Largest

4/25/2024 - 1.6 mag, 8.2mi depth 0.581144 mi from Alamo, CA
4/22/2024 - 1.6 mag, 7.7mi depth 7.90782 mi from San Francisco, CA
4/18/2024 - 1.7 mag, 26.2mi depth 8.69359 mi from Livermore, CA
4/17/2024 - 1.3 mag, 3.3mi depth 4.39597 mi from Portola Valley, CA
4/15/2024 - 0.8 mag, 9.2mi depth 3.38581 mi from Berkeley, CA
4/13/2024 - 1.3 mag, 12.4mi depth 1.8148 mi from Pleasant Hill, CA
4/13/2024 - 0.9 mag, 9.5mi depth 0.789862 mi from East Richmond Heights, CA
4/12/2024 - 1.2 mag, 9.8mi depth 4.71481 mi from Alameda, CA
4/12/2024 - 1.8 mag, 4.8mi depth 0.553254 mi from Orinda, CA
4/12/2024 - 1.7 mag, 4.1mi depth 0.435303 mi from Orinda, CA
4/11/2024 - 2.2 mag, 9.0mi depth 3.07133 mi from Berkeley, CA
4/11/2024 - 1.3 mag, 9.5mi depth 3.92906 mi from San Leandro, CA
4/8/2024 - 1.1 mag, 10.3mi depth 2.31097 mi from Portola Valley, CA
4/7/2024 - 1.4 mag, 5.8mi depth 7.0533 mi from Brentwood, CA
4/7/2024 - 1.8 mag, 19.0mi depth 6.82164 mi from Brentwood, CA
4/6/2024 - 2.1 mag, 9.0mi depth 5.03793 mi from Milpitas, CA
4/6/2024 - 3.4 mag, 9.4mi depth 3.30386 mi from Berkeley, CA
4/6/2024 - 0.7 mag, 8.2mi depth 3.19282 mi from Berkeley, CA
4/6/2024 - 1.6 mag, 7.0mi depth 1.44501 mi from Walnut Creek, CA
4/6/2024 - 1.9 mag, 8.8mi depth 3.10502 mi from Berkeley, CA
4/4/2024 - 1.7 mag, 12.2mi depth 1.01478 mi from Pacheco, CA
4/4/2024 - 1.8 mag, 3.3mi depth 0.914178 mi from Union City, CA
4/4/2024 - 1.8 mag, 0.3mi depth 13.9385 mi from Tracy, CA
4/1/2024 - 2.0 mag, 12.3mi depth 5.43794 mi from Clayton, CA
3/31/2024 - 1.3 mag, 6.0mi depth 1.44968 mi from Sunol, CA
3/30/2024 - 1.6 mag, 4.4mi depth 5.41771 mi from Milpitas, CA
3/29/2024 - 1.5 mag, 9.2mi depth 1.027 mi from East Richmond Heights, CA
3/25/2024 - 1.4 mag, 5.8mi depth 1.33294 mi from Fairview, CA
3/25/2024 - 1.8 mag, 15.0mi depth 7.31805 mi from Blackhawk, CA
3/23/2024 - 1.1 mag, 2.4mi depth 8.55902 mi from Livermore, CA
3/22/2024 - 0.7 mag, 7.2mi depth 2.2355 mi from Alamo, CA
3/22/2024 - 2.6 mag, 10.7mi depth 3.19117 mi from Pleasant Hill, CA
3/22/2024 - 1.8 mag, 8.0mi depth 7.86845 mi from San Francisco, CA
3/20/2024 - 1.3 mag, 7.7mi depth 3.03335 mi from Fremont, CA
3/18/2024 - 1.4 mag, 8.0mi depth 1.89489 mi from Alamo, CA
3/18/2024 - 1.6 mag, 2.7mi depth 2.81534 mi from Pacifica, CA
3/18/2024 - 1.6 mag, 7.8mi depth 2.7965 mi from Oakland, CA
3/18/2024 - 1.9 mag, 7.9mi depth 2.08868 mi from Alamo, CA
3/17/2024 - 1.8 mag, 15.2mi depth 1.51411 mi from Pacheco, CA
3/15/2024 - 1.8 mag, 8.5mi depth 3.18213 mi from Oakland, CA
3/15/2024 - 2.4 mag, 10.7mi depth 3.00559 mi from Berkeley, CA
3/7/2024 - 1.4 mag, 6.7mi depth 1.5437 mi from Pleasant Hill, CA
3/5/2024 - 2.0 mag, 9.3mi depth 7.53332 mi from San Francisco, CA
3/4/2024 - 2.3 mag, 13.8mi depth 1.2 mi from Walnut Creek, CA
3/3/2024 - 1.0 mag, 9.9mi depth 2.06158 mi from Alamo, CA
3/2/2024 - 1.5 mag, 9.9mi depth 1.99755 mi from Alamo, CA
2/29/2024 - 0.4 mag, 4.6mi depth 1.76098 mi from Oakland, CA
2/28/2024 - 1.1 mag, 11.2mi depth 2.37899 mi from Oakland, CA
2/28/2024 - 1.8 mag, 11.8mi depth 4.83832 mi from Brentwood, CA
2/28/2024 - 2.4 mag, 4.0mi depth 1.28312 mi from Byron, CA

4/24/1984 - 6.1 mag, 8.8mi depth 6.1436 mi from San Jose, CA
3/31/1986 - 5.6 mag, 9.2mi depth 9.7153 mi from East Foothills, CA
3/31/1986 - 5.6 mag, 8.0mi depth 9.7507 mi from East Foothills, CA
10/31/2007 - 5.6 mag, 10.0mi depth 4.1896 mi from East Foothills, CA
1/24/1980 - 5.6 mag, 15.0mi depth 2.6579 mi from Livermore, CA
10/25/2022 - 5.1 mag, 6.9mi depth 7.85001 mi from San Jose, CA
6/13/1988 - 5.0 mag, 7.0mi depth 2.3963 mi from East Foothills, CA
1/27/1980 - 5.0 mag, 15.0mi depth 3.681 mi from Livermore, CA
10/18/1989 - 4.8 mag, 19.0mi depth 4.5815 mi from Boulder Creek, CA
1/15/1981 - 4.8 mag, 9.0mi depth 4.3146 mi from East Foothills, CA
1/8/1977 - 4.8 mag, 10.0mi depth 2.3623 mi from Orinda, CA
5/21/1996 - 4.8 mag, 7.6mi depth 5.2988 mi from East Foothills, CA
6/21/1977 - 4.7 mag, 10.0mi depth 7.5031 mi from Livermore, CA
10/11/1986 - 4.7 mag, 7.0mi depth 0.9017 mi from Diablo, CA
10/18/1989 - 4.6 mag, 14.0mi depth 2.8451 mi from Lexington Hills, CA
8/11/1993 - 4.6 mag, 9.8mi depth 8.0093 mi from San Jose, CA
1/4/2018 - 4.5 mag, 13.0mi depth 3.13005 mi from Berkeley, CA
4/3/1989 - 4.5 mag, 9.0mi depth 2.9123 mi from East Foothills, CA
10/14/2019 - 4.5 mag, 14.6mi depth 1.5005 mi from Pleasant Hill, CA
11/10/1988 - 4.5 mag, 7.0mi depth 3.2923 mi from East Foothills, CA
4/7/1990 - 4.5 mag, 1.0mi depth 1.9436 mi from Alamo, CA
11/7/1989 - 4.4 mag, 11.0mi depth 2.8423 mi from Monte Sereno, CA
2/25/2001 - 4.4 mag, 7.8mi depth 7.0671 mi from San Jose, CA
5/3/1984 - 4.4 mag, 10.0mi depth 8.3454 mi from San Jose, CA
4/28/1979 - 4.4 mag, 12.0mi depth 2.1811 mi from Pacifica, CA
12/30/1988 - 4.3 mag, 7.0mi depth 7.1407 mi from San Jose, CA
7/16/2019 - 4.3 mag, 12.2mi depth 8.03143 mi from Blackhawk, CA
8/29/1978 - 4.3 mag, 8.0mi depth 4.8122 mi from East Foothills, CA
4/28/1990 - 4.3 mag, 6.0mi depth 1.6798 mi from North Gate, CA
3/27/1984 - 4.3 mag, 7.0mi depth 2.3184 mi from San Leandro, CA
5/8/1979 - 4.3 mag, 9.0mi depth 8.1211 mi from San Jose, CA
3/18/1984 - 4.3 mag, 12.0mi depth 5.0712 mi from Livermore, CA
9/26/1984 - 4.3 mag, 6.0mi depth 5.4739 mi from East Foothills, CA
5/11/1987 - 4.3 mag, 4.0mi depth 1.8793 mi from Canyon, CA
11/12/1973 - 4.2 mag, 17.0mi depth 2.9357 mi from Lexington Hills, CA
6/26/1994 - 4.2 mag, 7.4mi depth 0.5747 mi from Kensington, CA
4/28/1990 - 4.2 mag, 5.0mi depth 0.7963 mi from Alamo, CA
3/3/1981 - 4.2 mag, 8.0mi depth 3.7116 mi from Fremont, CA
1/25/1980 - 4.2 mag, 9.0mi depth 6.6998 mi from Brentwood, CA
7/20/2007 - 4.2 mag, 5.3mi depth 2.2993 mi from Canyon, CA
1/25/1980 - 4.2 mag, 8.0mi depth 6.5792 mi from Blackhawk, CA
9/3/1986 - 4.2 mag, 10.0mi depth 8.373 mi from San Jose, CA
1/25/1980 - 4.2 mag, 6.0mi depth 6.5297 mi from Camino Tassajara, CA
3/2/2007 - 4.2 mag, 16.2mi depth 0.6229 mi from Lafayette, CA
9/6/2008 - 4.1 mag, 16.2mi depth 1.2165 mi from Alamo, CA
8/24/1980 - 4.1 mag, 6.0mi depth 9.4738 mi from Livermore, CA
7/9/1989 - 4.1 mag, 5.0mi depth 2.0429 mi from East Foothills, CA
1/27/1980 - 4.1 mag, 13.0mi depth 6.0549 mi from Camino Tassajara, CA
7/1/1990 - 4.1 mag, 7.0mi depth 3.9889 mi from East Foothills, CA
2/2/2003 - 4.1 mag, 16.7mi depth 1.3706 mi from San Ramon, CA

View All

Earthquake Probability for Union City, CA

View the probability of a major earthquake within the next 50 years in Union City, 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

99.64%

5.1

99.34%

5.2

99.34%

5.2

98.90%

5.3

98.32%

5.4

97.61%

5.5

96.79%

5.6

95.90%

5.7

94.97%

5.8

94.05%

5.9

93.15%

6.0

92.09%

6.1

90.65%

6.2

88.42%

6.3

85.44%

6.4

81.12%

6.5

75.07%

6.6

67.60%

6.7

59.76%

6.8

51.28%

6.9

43.19%

7.0

35.17%

7.1

29.56%

7.2

25.60%

7.3

22.02%

7.4

18.23%

7.5

13.46%

7.6

10.61%

7.7

8.86%

7.8

7.67%

7.9

5.85%

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%

Earthquake Count for Union City, CA

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

List of Earthquake Incidents for Union City, CA

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

04/25/2024

1.6

8.2

0.58

Earthquake Information for Union City, California

Earthquake Probability for Union City, CA

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

Earthquake Count for Union City, CA

List of Earthquake Incidents for Union City, CA

Risk Of Natural Disasters In Union City, CA

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