With the increased threat of climate change, lake tsunamis are becoming more common in various parts of the world. These natural disasters can occur not only in oceans but also in lakes when a large volume of water changes position suddenly. In recent years, there have been an increase in lake tsunami phenomena in places like Alaska, USA, British Columbia, Canada and areas with mountain glaciers.
Lake tsunamis can be generated by various factors such as earthquakes, landslides, avalanches, glacier ruptures or delta collapses. Currently, most lake tsunamis occur in remote locations and pose little threat to people or infrastructure. However, geologists warn that with the melting of glaciers and permafrost due to climate change, the risk of lake tsunamis in residential areas may become more frequent.
For example, Portage Lake in Alaska is estimated to have a high lake tsunami risk. The consequences of these natural disasters can be severe and cause significant damage and loss of life. In 2020, a massive landslide in British Columbia caused a 100-meter high lake tsunami that devastated the surrounding area. Similarly, the 1938 Lake Michigan tsunami killed 5 people and injured 27 with a 3-meter high wave. The highest tsunami in history occurred in Alaska in 1958 when a 524-meter wave hit a fjord.
It is essential to be aware of the potential dangers posed by lake tsunamis and take necessary precautions to protect ourselves and our communities from their devastating effects. As climate change continues to impact our planet’s environment and ecosystems, it is crucial to remain vigilant and proactive in mitigating its effects on our lives and livelihoods.