Earthquake Information for Philadelphia, Pennsylvania

Philadelphia, PA has a very low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 2.24% chance of a major earthquake within 50km of Philadelphia, PA within the next 50 years. The largest earthquake within 30 miles of Philadelphia, PA was a 3.8 Magnitude in 1973.

Risk Level:
Very Low
Total Number of Earthquakes in Philadelphia, PA since 1931
0

Earthquake Probability for Philadelphia, PA

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

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2
(within 31 km/51 miles above magnitude)

Probability of Earthquakes Within the Next 50 Years

(within 31 km/51 miles above magnitude)
MAGNITUDE
PROBABILITY
5.0
2.24%
5.1
1.81%
5.2
1.81%
5.2
1.81%
5.3
1.47%
5.4
1.20%
5.5
0.97%
5.6
0.90%
5.7
0.74%
5.8
0.65%
5.9
0.53%
6.0
0.50%
6.1
0.40%
6.2
0.35%
6.3
0.28%
6.4
0.26%
6.5
0.20%
6.6
0.17%
6.7
0.16%
6.8
0.11%
6.9
0.09%
7.0
0.08%
7.1
0.05%
7.2
0.04%
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%