Magnitude 5.8 Earthquake Rattled Maryland 15 Years Ago
A magnitude 5.8 earthquake shook Maryland 15 years ago on a Sunday.
Baltimore, MD, August 23, 2026 —
Fifteen years ago, on a Sunday, a magnitude 5.8 earthquake registered a significant tremor across Maryland. The seismic event occurred on August 23, 2011, and was felt by millions across the Mid-Atlantic region.
The epicenter of the earthquake was located near Mineral, Virginia, but its effects were widely felt. Residents in Washington D.C., Maryland, Virginia, and even as far north as New York and as far south as North Carolina reported feeling the shaking.
While the earthquake caused some structural damage, including to notable landmarks such as the Washington Monument, there were no widespread reports of major injuries or fatalities directly attributed to the shaking.
The event served as a reminder of the seismic activity that can occur in regions not typically considered high-risk earthquake zones. Seismologists noted that the complexity of the fault system in the region contributed to the widespread perception of the tremor.
Following the earthquake, there were discussions and reviews regarding building codes and emergency preparedness in earthquake-prone areas, particularly in the context of the earthquake’s reach and impact on a densely populated region.
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