  Since volcanic activity was first discovered on Io from Voyager images in
1979, changes on Io's surface have been monitored from both spacecraft and
ground-based telescopes. Here, we present the highest spatial resolution images
of Io ever obtained from a ground-based telescope. These images, acquired by
the SHARK-VIS instrument on the Large Binocular Telescope, show evidence of a
major resurfacing event on Io's trailing hemisphere. When compared to the most
recent spacecraft images, the SHARK-VIS images show that a plume deposit from a
powerful eruption at Pillan Patera has covered part of the long-lived Pele
plume deposit. Although this type of resurfacing event may be common on Io, few
have been detected due to the rarity of spacecraft visits and the previously
low spatial resolution available from Earth-based telescopes. The SHARK-VIS
instrument ushers in a new era of high resolution imaging of Io's surface using
adaptive optics at visible wavelengths.
