In recent history, this phenomenon has been observed twice. This event is thought to have been caused by volcanic gases, trapped in sediment at the bottom of the lake and gradually building up until suddenly releasing, causing the water to overflow.
The ensuing flood destroyed fields and vineyards before eventually pouring into the sea. The Roman historian Plutarch reports that in 406 BC, Lake Albano surged over the surrounding hills, despite there being no rain nor tributaries flowing into the lake to account for the rise in water level. Historical occurrences Ĭlass=notpageimage| Locations of the two recorded limnic eruptions in modern history, Cameroonĭue to the largely invisible nature of the underlying cause (CO 2 gas) behind limnic eruptions, it is difficult to determine to what extent eruptions have occurred in the past. Investigations of the Lake Monoun and Lake Nyos casualties led scientists to classify limnic eruptions as a distinct type of disaster event, even though they can be indirectly linked to volcanic eruptions. Proximity to areas with volcanic activity.An upper and lower thermal layer with differing CO 2 saturations.A cool lake bottom indicating an absence of direct volcanic interaction with lake waters.Some features of limnically active lakes include: Lakes in which such activity occurs are referred to as limnically active lakes or exploding lakes. Scientists believe earthquakes, volcanic activity, and other explosive events can serve as triggers for limnic eruptions. A limnic eruption may also cause tsunami or seiche as the rising CO 2 displaces water. Type of volcanic eruption Lake Nyos, the site of a limnic eruption in 1986Ī limnic eruption, also known as a lake overturn, is a very rare type of natural disaster in which dissolved carbon dioxide (CO 2) suddenly erupts from deep lake waters, forming a gas cloud capable of suffocating wildlife, livestock, and humans.
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