Earthquake Information for Chester County, Pennsylvania

Chester County, PA has a low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 2.35% chance of a major earthquake within 50km of Chester County, PA within the next 50 years.

Risk Level:
Low
Total Number of Earthquakes in Chester County since 1931
0
Probability of A 5.0 Earthquake within next 50 years
2.35%

Earthquake Probability for Chester County, PA

View the probability of a major earthquake within the next 50 years in Chester County, PA.

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
2.35%
5.1
1.90%
5.2
1.90%
5.2
1.90%
5.3
1.54%
5.4
1.25%
5.5
1.01%
5.6
0.94%
5.7
0.77%
5.8
0.67%
5.9
0.55%
6.0
0.51%
6.1
0.41%
6.2
0.35%
6.3
0.28%
6.4
0.26%
6.5
0.20%
6.6
0.17%
6.7
0.15%
6.8
0.11%
6.9
0.09%
7.0
0.08%
7.1
0.05%
7.2
0.03%
7.3
0.03%
7.4
0.01%
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%

Pennsylvania Earthquakes by City