Earthquake Information for Florissant, Missouri

Florissant, MO has a low earthquake risk, with a total of 9 earthquakes since 1931. The USGS database shows that there is a 2.59% chance of a major earthquake within 50km of Florissant, MO within the next 50 years. The largest earthquake within 30 miles of Florissant, MO was a 5.6 Magnitude in 1974.

Risk Level:
Low
Total Number of Earthquakes in Florissant since 1931 within 30 miles
9
Probability of A 5.0 Earthquake within next 50 years
2.59%

Earthquake Probability for Florissant, MO

View the probability of a major earthquake within the next 50 years in Florissant, MO.

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
2.59%
5.1
2.08%
5.2
2.08%
5.2
2.08%
5.3
1.67%
5.4
1.34%
5.5
1.07%
5.6
0.98%
5.7
0.79%
5.8
0.68%
5.9
0.54%
6.0
0.50%
6.1
0.38%
6.2
0.32%
6.3
0.23%
6.4
0.21%
6.5
0.14%
6.6
0.10%
6.7
0.09%
6.8
0.04%
6.9
0.02%
7.0
0.01%
7.1
0.00%
7.2
0.00%
7.3
0.00%
7.4
0.00%
7.5
0.00%
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%