Geology
Geology is the study of the Earth—its rocks, minerals, landscapes, and the processes that have shaped our planet over billions of years. In this section, we will explore topics ranging from plate tectonics and rock formation to Maryland’s geological history and local features found throughout Harford County. Whether you are interested in minerals, fossils, earthquakes, or simply curious about the ground beneath your feet, geology helps explain how the world around us came to be.
Recent Earthquakes Near Maryland
Recent regional seismic activity
USGS Earthquake Data
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