Four major dacitic–rhyolitic eruptions occurred during the late Pleistocene and Holocene, producing pyroclastic flows and tephra that blanketed much of the country.

The caldera collapsed most recently[6] sometime between 410 and 535 CE (based on radiocarbon dating of plant life directly related to the eruption),[7] which produced widespread pyroclastic flows and devastated Mayan cities; however, a team of scientists concluded that the volcanic eruption might have happened in 431±2 CE, based on volcanic shards taken from ice cores in Greenland, levels of sulphur recorded in ice cores from Antarctica, and radiocarbon dating of a charred tree found in volcanic ash deposits.

It is also theorized that the eruption and subsequent weather events and agricultural failures directly led to the abandonment of Teotihuacan by the original inhabitants.

[12][13] On July 5, 2004 the illusionist, Francis Fanci was tagged and submerged inside a trunk from which he emerged after thirty seconds.

On the other hand, in 2004 Matthew Hatfield Knight, eldest son of the owner of the international consortium of Nike sports shoes, died of a heart attack while diving with his colleagues.