Baroque architecture intended to resist earthquakes.
Earthquake Baroque, or Seismic Baroque, is a style of Baroque architecture found in the former Spanish East Indies and in Guatemala, which were Spanish-ruled territories that suffered destructive earthquakes during the 17th and the 18th centuries. Large public buildings, such as churches, were then rebuilt in a Baroque style during the Spanish colonial periods in those countries.[1]
In the Spanish East Indies, destruction of earlier churches from frequent earthquakes have made the church proportion lower and wider; side walls were made thicker and heavily buttressed for stability during shaking. The upper structures were made with lighter materials.[2] Instead of lighter materials thinner walls were introduced by progressively decreasing in thickness to the topmost levels.[3]
Bell towers are usually lower and stouter compared to towers in less seismically active regions of the world.[4] Towers are thicker in the lower levels, progressively narrowing to the topmost level.[2] In some churches of the Philippines, aside from functioning as watchtowers against pirates, some bell towers are detached from the main church building to avoid damage in case of a falling bell tower due to an earthquake.[citation needed]