We advocate an idea that some mysterious explosions , the so-called sky-quakes , which have been known for centuries could be a manifestation of the dark matter Axion Quark Nuggets ( AQN ) when they propagate in the Earth ’ s atmosphere . We specifically study the event which occurred on July 31-st 2008 and was properly recorded by the dedicated Elginfield Infrasound Array ( ELFO ) near London , Ontario , Canada . The infrasound detection was accompanied by non-observation of any meteors by an all-sky camera network . Our interpretation is based on the AQN dark matter model which was originally invented with a completely different purpose—to explain the similarity of the dark and visible cosmological matter densities \Omega _ { dark } \sim \Omega _ { visible } . Our estimates for the infrasonic frequency \nu \simeq 5 Hz and overpressure \delta p \sim 0.3 Pa are consistent with the ELFO record . We propose a detection strategy for a systematic study to search for such explosions originating from AQNs by using Distributed Acoustic Sensing and briefly mention other possible detection methods . Specific signals from AQN tracks may also be detected by an existing network of seismic stations .