It came on a holy morning, toppled a capital, then drowned the survivors who fled to the waterfront. It shook the philosophy of Enlightenment Europe as hard as its ground.
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DownloadThe 1755 Lisbon earthquake struck on November 1, 1755, registering magnitude 7.7 (estimated magnitude). Each whole step on the moment-magnitude scale is roughly 32 times more energy, so this released on the order of 355× the energy of a magnitude 6.0 earthquake.
Its epicenter was located near 36.00°N, 11.00°W, at a depth of about unknown — . Deep earthquakes are felt across a wide region but are usually less destructive at the surface than shallow ones of the same size.
An estimated 50,000 people were killed.