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We place constraints on the properties of the interstellar turbulence thatsurrounds Geminga pulsar, using the recent measurements from the HAWCObservatory in this region. We propagate very-high-energy electrons inrealizations of 3D isotropic Kolmogorov or Kraichnan turbulence, calculatetheir gamma-ray emission, and compare with HAWC measurements. We show that themeasurements can be well fitted for both models of the turbulence and forreasonable values of its strength, $B_{\rm rms}$, and coherence length, $L_{\rmc}$. Our best fits are obtained for $B_{\rm rms} \simeq 3 \mu$G and $L_{\rm c}\simeq 1$ pc. Furthermore, the absence of strong asymmetries in the observedemission favours $L_{\rm c} \leq 5$ pc.

Constraints on the properties of the turbulent magnetic field around Geminga using HAWC measurements