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Earthquake Bolts

Earthquake Bolts – Charleston, South Carolina


South Carolina  |  SC Picture Project  |  Charleston County Photos  |  Earthquake Bolts

This lovely picture of the rooftops in historic Charleston holds a clue to past tragedy in the city. Can you pick it out?

This image is copyrighted. You may not use it without written consent.

The black cross on the side of the orange building is an earthquake bolt – added to many buildings that survived or were built after the devastating quake that shook Charleston on August 31, 1886. It remains one of the largest earthquakes ever recorded on the Eastern Seaboard, with tremors felt over a span of 2.5 million square miles – from New York to Cuba, and from Bermuda to the Mississippi River.

Many brick and masonry buildings in Charleston, including the city’s three hospitals, crumbled to the ground within minutes. Afterward, builders installed reinforcing bolts to strengthen their buildings. Earthquake bolts have two parts – a plate and an iron rod. The plate on the outside of the building connects to a rod that passes through the building and then bolts to the timber frame on the interior. This, in effect, literally bolts the exterior masonry to the structural timber frame of the building.

Since the plates are visible on the outside wall of a building, they are often crafted as decorative elements in the shape of crosses, circles, scrolls, or stars.

Some suspect the bolts would not protect buildings in the event of another strong earthquake. Thankfully, though minor rumblings have been felt, South Carolina has so far been spared another serious seismic upheaval.

Earthquake Bolts – Add Info and More Photos


The purpose of the South Carolina Picture Project is to celebrate the beauty of the Palmetto State and create a permanent digital repository for our cultural landmarks and natural landscapes. We invite you to add additional pictures (paintings, photos, etc) of Earthquake Bolts, and we also invite you to add info, history, stories, and travel tips. Together, we hope to build one of the best and most loved SC resources in the world!


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One Comment about Earthquake Bolts

Christi Reynolds Hatfield says:
October 11th, 2014 at 2:03 pm

I have personally seen these…awesome.






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