Unearthing Alaska's Seismic History: Exploring a Lake's Earthquake Traces

Scientists from the U.S. Geological Survey (USGS) conducted research at Allison Lake in Alaska to study past earthquakes. Despite challenging weather conditions, they successfully assembled a boat equipped with sound-wave producing instruments to map the lake floor and identify evidence of underwater landslides caused by earthquakes. This technique, known as lacustrine slump deposits, provides valuable information for predicting future earthquakes and informing building codes. The scientists are compiling data from Allison Lake and other lakes in Alaska to create a comprehensive history of earthquakes in the region.