Lake Kivu: A silent gas bomb threatening millions of lives in the heart of Africa

Written by Omnia Hassan

On the border between Rwanda and the Democratic Republic of Congo, Lake Kivu appears to be one of the most beautiful lakes on the continent.  African Calm waters, stunning scenery, and the vibrant city of Goma on its banks. But behind this enchanting landscape lies a silent danger that could turn at any moment into one of the worst natural disasters of modern times.

A deadly lake under the scientific microscope

Lake is described  Howo  Scientifically, it is “deadly” because it contains huge quantities of dissolved gases in its depths, most notably carbon dioxide and highly flammable methane. These gases have been accumulating for thousands of years as a result of volcanic and tectonic activity in the region, as the lake is located next to an active volcano, Mount Nyiragongo, one of the most active volcanoes in Africa.

The Yemeni explosion is a potential catastrophe

The real danger lies in how these gases are stored within the lake. Lake Kivu's waters are divided into stable layers; the upper layers are constantly mixing, while the deeper layers remain isolated and saturated with gases under high pressure. Any sudden disturbance, such as an earthquake or volcanic eruption, could cause these gases to rise rapidly to the surface.

This phenomenon is known as a "liminal explosion," where massive quantities of gas are suddenly released, forming a deadly cloud that blankets the surrounding area. The world witnessed a horrific example of this at Lake Nyos in Cameroon in 1986, when an explosion caused the deaths of approximately 1,800 people from asphyxiation within hours.

A threat greater than ever before

Lake Kivu contains about 300 cubic kilometers of carbon dioxide, in addition to about 60 cubic kilometers of flammable methane. This means that any major leak could lead not only to suffocation, but also to massive explosions that would devastate the surrounding area, which is populated by millions of people in nearby towns and villages, making any potential disaster a threat to the lives of many within minutes.

Gas exploitation: between benefit and risk

Despite the imminent danger, scientists and engineers have begun to exploit part of this problem for economic gain. Projects have been launched to extract methane gas from the depths of the lake and use it to generate electricity, thus contributing to bolstering Rwanda's power grid. However, these solutions are not without controversy. Some experts fear that extraction operations could affect the stability of the water layers, potentially increasing the risk of an explosion rather than reducing it. It is a complex equation between minimizing risk and achieving economic benefit.