Earthquake Information for Blackhawk, California

Blackhawk, CA has a very high earthquake risk, with a total of 5,178 earthquakes since 1931. The USGS database shows that there is a 99.24% chance of a major earthquake within 50km of Blackhawk, CA within the next 50 years. The largest earthquake within 30 miles of Blackhawk, CA was a 5.6 Magnitude in 1980.

Risk Level:
Very High
Total Number of Earthquakes in Blackhawk since 1931 within 30 miles
5,178
Probability of A 5.0 Earthquake within next 50 years
99.24%

Earthquake Probability for Blackhawk, CA

View the probability of a major earthquake within the next 50 years in Blackhawk, 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
99.24%
5.1
98.70%
5.2
98.70%
5.2
97.96%
5.3
97.03%
5.4
95.95%
5.5
94.76%
5.6
93.50%
5.7
92.23%
5.8
90.98%
5.9
89.79%
6.0
88.38%
6.1
86.45%
6.2
83.42%
6.3
79.41%
6.4
73.72%
6.5
65.05%
6.6
53.72%
6.7
42.40%
6.8
30.70%
6.9
20.30%
7.0
11.05%
7.1
5.64%
7.2
2.65%
7.3
0.94%
7.4
0.38%
7.5
0.09%
7.6
0.00%
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%