How did the transamerica building in san francisco withstand an earthquake?

The Transamerica Pyramid in San Francisco withstands earthquakes due to its unique design and engineering features. Its tapered shape reduces wind resistance and seismic forces, while a flexible base allows the building to sway during tremors. Additionally, the foundation is anchored deep into the bedrock, providing stability. These elements combine to enhance its resilience against seismic activity common in the region.