Astrange effect of bubbles, anc concentric and waves was observed on a lake in Neuquén. It was filmed (see video below).
The incident took place at Lake Nompehuen, a small glacial lake (see it in Google maps) with a roughly square shape, 1 km by 1 km (0.6 mi). It is separated from Lake Ñorquinco by a narrow (400 m - 1/4 mi.) strip of land. It lies west of the town of Aluminé. The lake is fed by the river of the same name, and drains into Lake Ñorquinco.
The mysterious bubbles
Video on Instagram:
The bubbles appeared suddenly on the calm water on January 14, 2025. There are three possible explanations that were given for this event:
One, geothermal activity in this area, which is volcanic. The lake is located close to Lanin, Batea Mahuida, Solpulli, Quetrupillán and Villarrica volcanoes. Perhaps it vented carbon dioxide that accumulated in the bedrock beneath the lake bed.
The second possible cause is the accumulation of organic matter on the bottom of the lake, which due to climate change is broken down by bacteria into methane in the shallow waters, methane (the main component of natural gas) produces effervescence, and bubbly outbursts as they rise to the surface.
A third option is a "limnic eruption" or "lake overturn" where carbon dioxide from the deep waters is released in a sudden outburst. This takes place in deep lakes with cold water. The pressure of the overlying water dissolves the carbon dioxide (like in bottled sparkling water), and when the pressure is released the gas bubbles upwards. The trigger could be the warming of the waters, an earthquake or volcanic activity.
Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025 by Austin Whittall ©
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