Seismology and Glaciers
Seismic Activity and Glaciers Glaciers are constantly changing. In warmer months, changes can be dramatic. During colder seasons, changes are gradual and subtle. As glaciers shift from a series of elemental changes, they sometimes emit earthquake-like signals. Some seismic readings and activity in Alaska are due to glaciers, which are dramatically affecting the environment. Since the 1980s, glaciers have been getting smaller and retreating after nearly 200 years of stability. (Alaska Earthquake Center) A noticeable change in the environment caused by a glacial event is sometimes called a glacierquake. Glacier quakes occur when ice moves, shifts, or changes state, while earthquakes are the sudden release of energy from the shifting of Earth's tectonic plates. (Northwestern) Changing Glaciers Glacier quakes share similarities and distinctions with earthquakes. Both can affect each other's dynamics. For example, when a tectonic plate shifts, ground movement can channel meltwater, [...]












