yes there is many, if you watch the Suspicious Observers channel every other day he's announcing new geophysics papers he's found that have discovered influencing relations between solar energy phenomena and earthquakes much of the rock in the crust of the earth contains piezoelectric reactive quartz crystals that deform when you put current through them of sufficient voltage, and the rest of the material is mildly conductive materials, like, the iron/magnesium/aluminum of basaltic rocks, and quartz is not just piezo but amorphous silica crystals in general can hold surface charges, like the way it is used to make ceramic capacitors, and how they exert their adsorbent effects as used in chromatography and other things like water purifiers catching ions and cations