  Magnetized Quark Nuggets (MQNs) are a recently proposed dark-matter candidate
consistent with the Standard Model and with Tatsumi's theory of quark-nugget
cores in magnetars. Previous publications have covered their formation in the
early universe, aggregation into a broad mass distribution before they can
decay by the weak force, interaction with normal matter through their
magnetopause, and first observation consistent MQNs, i.e. a nearly tangential
impact limiting their surface-magnetic-field parameter B_o from Tatsumi's
values of 0.1 to 10.0 TT to new value of 1.65 TT +/- 21%. The MQN mass
distribution and interaction cross section depend strongly on B_o. Their
magnetopause is much larger than their geometric dimensions and can cause
sufficient energy deposition to form non-meteorite craters, which are reported
approximately annually. We report computer simulations of the MQN energy
deposition in water-saturated peat, soft sediments, and granite and report
results from excavating such a crater. Five points of agreement between
observations and hydrodynamic simulations of an MQN impact support this second
observation consistent with MQN dark matter and suggest a method for qualifying
additional MQN events. The results also redundantly constrain B_o to greater
than 0.4 TT.

Earth and Planetary Astrophysics;Cosmology and Nongalactic Astrophysics;General Relativity and Quantum Cosmology;High Energy Physics - Phenomenology