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We advocate the idea that the nanoflares conjectured by Parker long ago toresolve the corona heating problem, may also trigger the larger solar flares.The arguments are based on the model where emission of extreme ultra violet(EUV) radiation and soft x-rays from the Sun are powered externally by incidentdark matter particles within the Axion Quark Nugget (AQN) Dark Matter Model.The corresponding annihilation events of the AQNs with the solar material areidentified with nanoflares. This model was originally invented as a naturalexplanation of the observed ratio $\Omega_{\rm dark} \sim \Omega_{\rm visible}$when the DM and visible matter densities assume the same order of magnitudevalues. This model gives a very reasonable intensity of EUV radiation withoutadjustments of any parameters in the model. When the same nuggets enter theregions with high magnetic field they serve as the triggers igniting themagnetic reconnections which eventually may lead to much larger flares.Technically, the magnetic reconnection is ignited due to the shock wave whichinevitably develops when the dark matter nuggets enter the solar atmospherewith velocity $v_{\rm AQN}\sim ~600~ {\rm km/s}$ which is much higher than thespeed of sound $c_s$, such that the Mach number $M=v_{\rm AQN}/c_s\gg 1$. Theseshock waves generate very strong and very short impulses expressed in terms ofpressure $\Delta p/p\sim M^2$ and temperature $\Delta T/T\sim M^2$ in vicinityof (would be) magnetic reconnection area. The mechanism is consistent with theobserved scaling of the flare distribution $dN\sim W^{-\alpha}dW$ as a functionof the flare's energy $W$. We also speculate that the same nuggets may triggerthe sunquakes which are known to be correlated with large flares.

Solar Flares and the Axion Quark Nugget Dark Matter Model