[link to www.gi.alaska.edu]

At infrasonic arrays in Alaska, in Inuvik NWT, Canada, and at Kiruna in Sweden many impulsive large amplitude auroral infrasound signals were found to be related to specific auroral arcs in the auroral displays overhead.

[link to www.globalwatch.org]

Infrasonic waves have specific decay characteristic while propagating through a solid medium (such as the Earth's crust). Professor Li discovered that within 9 days before a major earthquake, abnormal infrasonic waves can be detected. Used in imminent prediction, this method has an error in time of less than 4 days and error in magnitude of less than M0.8. He has not yet been able to demonstrate prediction of location.

[link to en.wikipedia.org]

The above gives the relationship between aurora and infrasound and infrasound and earthquakes as well as the symptoms experienced by people and animals to infrasound.