Not Just Land
Although you can commonly find permafrost covering soil, sand, and gravel, it doesn’t only appear on land. This substance can also be found underneath the depths of the ocean and this is where the most damage can be caused.
As you can imagine, the phenomenon is most common in regions where temperatures seldom reach anything higher than 32 degrees Fahrenheit. That’s why you can expect to find permafrost in areas like Alaska, Greenland, China, Russia, and Eastern Europe.