Storegga slides

Storegga slides, series of submarine landslides in the Norwegian Sea that occurred between approximately 8,400 and 2,200 years ago. The combined activities of these landslides produced a scar on the seafloor that begins some 100 km (60 miles) off Norway’s More Coast on the edge of Europe’s continental shelf and extends some 1,600 km (1,000 miles) into the abyssal plain of the Norwegian Sea. Geologists regard the scar, which was identified in 1983, as the...