Detection of magnetized quark nuggets or axion quark nuggets with non-meteorite craters in Ireland, acoustic monitoring of Great Salt Lake, and radio-frequency monitoring of planetary flybys.

Magnetized quark nuggets (MQNs) are theoretical objects composed of approximately equal numbers of up, down, and strange quarks and are candidate for dark matter consistent with the Standard Model. Tatsumi calculates they form a ferromagnetic fluid bound by strong nuclear forces and have a surface magnetic field Bo between 1011 and 1012 T. We report 1) null results of MQNs with mass > 0.0001 kg in a 3 x 107 m2 area of the Great Salt Lake in 0.25 y, excluding Bo< 2 x 1011 T, 2) positive results consistent with the passage of a MQN or Axion Quark Nugget (AQN) in a three-layer witness plate of an Irish peat bog, excluding Bo< 4 x 1011 T, and 3) too few events like Tunguska (1908) or Fukushima Earthquake (2011), excluding Bo> 2 x 1012 T. Radio frequency signals observed with the FORTE satellite in 1997 are compared to predicted emissions from MQNs after fly-by through earth’s atmosphere. MQNs might also be detected by magnetic fields of asteroids, collecting them for 4.6 Gy.