Tsunamis are a natural phenomenon that can occur in both oceans and lakes. When a large volume of water changes position suddenly, tsunamis can occur in lakes. This type of tsunami is becoming more common in places like Alaska, USA, British Columbia, Canada, and areas with mountain glaciers. Geologists warn that with climate change leading to increased melting of glaciers and permafrost, the risk of lake tsunamis in residential areas may become more common.
In 2020, a massive landslide in British Columbia caused a 100-meter high lake tsunami, devastating 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, a 524-meter wave that hit Alaska in 1958, occurred in a fjord. These events show how severe the consequences of lake tsunamis can be.
Although currently less common than ocean tsunamis, lake tsunamis have the potential to cause severe damage and loss of life. With climate change and other factors increasing the risk of these events, it is important to be aware of the potential dangers they pose and take necessary precautions to protect ourselves and our communities from their devastating effects.