On this day in the Year of the Consulship of Marius and Asinius, 815 ab urbe condita (that's 62 AD for followers of that weird offshoot Jewish cult), the prosperous Campanian city of Pompeii was hammered by an earthquake measuring approximately six on the Richter scale. Compounding the damage from the quake were fires caused by toppled candles and lamps. It was easily the worst disaster to befall the city since it had been hit with landslides a couple hundred years earlier.
Showing no more common sense than your average Los Angeleno, the Pompeiians immediately set about repairing their scenic little town, right there in the shadow of Mount Vesuvius. They had it all spruced up again by the Year of the Consulship of Augustus and Vespasianus, as many a tourist can attest.