Magnitudes of Earthquakes
Richter Magnitude Scale
This map shows ...
| 3 Strongest Earthquake Events | 3 Weakest Earthquake Events | ||||
|---|---|---|---|---|---|
| Place (County) | Date | Magnitude | Place (County) | Date | Magnitude |
| Greenville (Mercer) | 9/25/1998 | 5.1 | Pineville (Bucks) | 3/11/1997 | 1.6 |
| Sinking Spring (Berks) | 1/16/1994 | 4.6 | Sinking Spring (Berks) | 5/11/1993 | 1.6 |
| Marticville (Lancaster) | 4/23/1984 | 4.2 | Conestoga (Lancaster) Lancaster (Lancaster) Schuylkill Haven (Schuylkill) |
7/17/2001 3/22/2000 8/17/1995 |
all 1.8 |
Data Sources: U.S. General Services Administration, via Data.gov
US maps source: Esri, Inc.
PA map Source: Pennsylvania Spatial Data Access (PASDA)
Map and webpage created by: Rose Haskell, Fall 2015.
Modifications by: Dr. Geiger, 2016, 2021.