On December 3, 1315, the city was struck by an earthquake which seriously damaged the San Francesco Church. Another earthquake struck on September 9, 1349, killing about 800 people. Other earthquakes struck in 1452, then on November 26, 1461, and again in 1501 and 1646. On February 3, 1703 a major earthquake struck the town. More than 3.000 people died and almost all the churches collapsed; Rocca Calascio, the highest fortress in Europe was also ruined by this event, yet the town survived. L'Aquila was then repopulated by decision of Pope Clement XI. The town was rocked by earthquake again in 1706. The most serious earthquake in the history of the town struck on July 31, 1786, when more than 6.000 people died. On June 26, 1958 an earthquake of 5.0 magnitude struck the town.