Earthquake Information for Polk County, Iowa

Polk County, IA has a very low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 0.13% chance of a major earthquake within 50km of Polk County, IA within the next 50 years.

Risk Level:
Very Low
Total Number of Earthquakes in Polk County since 1931
0
Probability of A 5.0 Earthquake within next 50 years
0.13%
  • There are no earthquakes reported in Polk County, IA.
  • There are no earthquakes reported in Polk County, IA.

Earthquake Probability for Polk County, IA

View the probability of a major earthquake within the next 50 years in Polk County, IA.

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
0.13%
5.1
0.11%
5.2
0.11%
5.2
0.11%
5.3
0.09%
5.4
0.07%
5.5
0.05%
5.6
0.05%
5.7
0.04%
5.8
0.03%
5.9
0.03%
6.0
0.03%
6.1
0.02%
6.2
0.02%
6.3
0.01%
6.4
0.01%
6.5
0.01%
6.6
0.01%
6.7
0.00%
6.8
0.00%
6.9
0.00%
7.0
0.00%
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%