A thick tephra from Laguna Potrok Aike may testify to an eruption of Aguilera between 42,400 - 51,747 years before present. Later, two ash layers emplaced 5,700 and 5,150 years before present in the Vega Ñandú mire in Torres del Paine National Park may have been erupted at Aguilera. A tephra layer found at archeological sites around Lago Argentino and deposited there 4,091 - 4,566 years before present originated at Aguilera and probably disrupted local human communities. Farther away in Antarctica, a tephra found in Talos Dome and deposited there 4,420 years before present may have originated at this volcano as well.