Port Royal - Earthquake of 1692 and Its Aftermath

Earthquake of 1692 and Its Aftermath

The town grew rapidly, reaching a population of around 6,500 people with approximately 2,000 dwellings by 1692. As they began to run out of land on which to build, it became common practice to either fill in areas of water and build new infrastructure on top of it, or simply build buildings taller. In addition, buildings gradually became heavier as the residents adopted the brick style homes of their native England. Some urged the population to adopt the low, wooden building style of the previous Spanish inhabitants, but many refused. In the end, all of these separate factors were contributory to the impending disaster.

On June 7, 1692, a devastating earthquake hit the city causing most of its northern section to fall into the sea (and with it many of the town’s houses and other buildings). In addition, the island lost many of its forts. Fort Charles survived, but Forts James and Carlisle sank into the sea. Fort Rupert became a large region of water, and great damage was done to an area known as Morgan’s Line.

Although the earthquake hit the entire island of Jamaica, the citizens of Port Royal were at a greater risk of death due to the perilous sand, falling buildings, and the tsunami that followed. Though the local authorities tried to remove or sink all of the corpses from the water, they were not successful. Some simply got away from them, while others were trapped in places that were inaccessible. Improper housing, a lack of medicine or clean water, and the fact that most of the survivors were homeless, led to many people dying of malignant fevers. The earthquake and tsunami killed between 1,000 and 3,000 people combined, nearly half the city's population. Disease ran rampant in the next several months, claiming an estimated 2,000 additional lives.

Port Royal is one historical earthquake which can be dated closely by not only date, but time. This is documented by recovery from the sea floor in the 1960s of a pocket watch stopped at 11:43 a.m. recording the time of the devastating earthquake on June 7, 1692.

Many viewed this horrific event as God’s punishment for unlawful proceedings by a group of sinful people. Major events, such as earthquakes and other natural disasters, were seen as heavenly punishments for sins, or signs of much greater retributions to come. The people of Port Royal had erected several places for worship, and it was reported that within the population were Roman Catholics, Anglicans, Jews, Baptists, Presbyterians, and Quakers. Nevertheless, a historian has written, “Organised religion had little impact on the population. Material concerns occupied the attention of most, particularly the rich.” It became a general consensus that worldly desires had become far too important to the citizens of Port Royal, be they wealthy or not. Some went so far as to say it was home to some of the vilest individuals on earth. The quake was to be seen as a message to all Christians, not just those living in Jamaica. Reverend Cotton Mather wrote that the earthquake was an event speaking to all of English America.

The earthquake caused the sand on which Port Royal was built to liquefy and flow out into Kingston Harbour. The water table was generally only two feet down before the impact. “Modern scientists have determined that much of the ground on which the town stands comprises little more than water-saturated sand for about sixty-five feet, at which point sand and gravel mix with coral reef.” This type of area did not provide a solid foundation on which to build an entire town. Unlike the Spanish before them, the English decided to settle and develop the small area of land, even while acknowledging that the area was nothing but “hot loose sand”.

According to Mulcahy, “ scientists and underwater archaeologists now believe that the earthquake was a powerful one and that much of the damage at Port Royal resulted from a process known as liquefaction.”. Liquefaction occurs when earthquakes strike ground that is loose, sandy, and water-saturated, increasing the water pressure and causing the particles to separate from one another and form a sludge resembling quicksand. Eyewitness accounts attested to buildings sliding into the water, but it is some simply sank straight down into the now unstable layer.

Underwater archeology, some of which can be seen in the National Geographic Channel show Wicked Pirate City, reveals the foundations of building under water, showing there was subsidence, as do comparisons of post-earthquake maps and pre-earthquake maps.

Some attempts were made to rebuild the city, starting with the one third of the city that was not submerged, but these met with mixed success and numerous disasters. An initial attempt at rebuilding was again destroyed in 1703 by fire. Subsequent rebuilding was hampered by several hurricanes in the first half of the 18th century, including flooding from the sea in 1722, a further fire in 1750 and a major hurricane in 1774, and soon Kingston eclipsed Port Royal in importance. In 1815 what repairs were being undertaken were destroyed in another major fire, while the whole island was severely affected by an epidemic of cholera in 1850.