Case file · High strangeness
Fifth omen: the lake boils
In the fifth omen the water of Lake Texcoco foamed and surged with no wind, flooding houses in Tenochtitlan. The year is approximate.
1512 CE · 19.44, -99.10 · status: legend
The sceptical view
Seiches set off by earthquakes, or sudden storms, can raise lake water suddenly; the Valley of Mexico is seismically active.