Glacial earthquake

[2] Current and past global seismic data is analyzed using an earthquake detection algorithm explained in a 2006 paper by Goran Esktrom.

[5] The algorithm uses information from seismometers to detect and locate seismic activity by interpreting surface wave propagation and various factors of the seismographs.

[8] Seismic activity is seen in glacial environments due to processes such as stick-slip sliding, and the cracking and falling of ice sheets.

[1] A study conducted in 2015 connects this seismic activity to the movement of both ice sheets and the Earth in the event of calving.

[2] This motion and movement of both ice chunks and Earth material creates signals that alert to glacial seismic activity.

[12] In 2015, data showed a sevenfold increase in glacial earthquakes in the past twenty years and they have been occurring more in the northern glaciers.