The Colombian territory, hit today by a very violent earthquake, rests on a very rare and dangerous geological crossroads. The precedentsThe epicenter of the violent earthquake of August 10 was located in the Western Cordillera, an area historically affected by very violent phenomena. Violent earthquake in Colombia: magnitude 7.4 (Photo LaPresse)The main event was followed by two lighter aftershocks, of magnitude 2.8 and 4.8 respectively. In 1999 a 6.2 magnitude earthquake destroyed the city of Armenia, in the Central Cordillera, causing almost a thousand deaths and immense damage. Even earlier, in 1983, an earthquake struck the city of Popayán, located further south in the Western Cordillera, causing 287 victims.