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Structure #3 (United States Army Corps of Engineers, 1999). Extent. Best available data do not indicate that there have been any dam or levee failures in Indian River County or the municipalities. The overall extent of seismic hazards in Indian River County is uniform throughout the individual jurisdictions in the County. Seismic Hazards (Earthquakes) — Hazard Identification. Although Florida is not usually considered to be a state subject to earthquakes, several minor shocks have occurred overtime, but only one caused any damage (USDOI, USGS, 2004). Historic Events. In January 1879, a shock occurred near St. Augustine that is reported to have knocked plaster from walls and articles from shelves. Similar effects were reported in Daytona Beach. The shock was felt in Tampa, throughout central Florida, and in Savannah, Georgia as well (USDOI, USGS, 2004). In January 1880 another earthquake occurred, this time with Cuba as the focal point. Shock waves were sent as far north as the town of Key West (USDOI, USGS, 2004). In August 1886, Charleston, South Carolina was the center of a shock that was felt throughout northern Florida. It rang church bells in St. Augustine and severely jolted other towns along sections of Florida's east coast. Jacksonville residents felt many of the strong aftershocks that occurred in September, October, and November 1886 (USDOI, USGS, 2004). In June 1893, Jacksonville experienced a minor shock that lasted about 10 seconds. Another earthquake occurred in October 1893, which also did not cause any damage (USDOI, USGS, 2004). In November 1948, doors and windows rattled in Captiva Island, west of Ft. Myers. It was reportedly accompanied by sounds like distant heavy explosions (USDOI, USGS). In November 1952, a slight tremor was felt in Quincy, a town located 20 miles northwest of Tallahassee. Windows and doors rattled, but no damage was reported (USDOI, USGS). Indian River County Comprehensive Emergency Management Plan Basic Page 50