Report from the Field Spring 2016 – Okmok Published March 2, 2017 at 3264 × 2448 in Magnetotelluric & seismic investigation of arc melt generation, delivery, and storage beneath Okmok volcano ← Previous Next → USGS collaborator Paul Bedrosian installing an MT site. The induction coils are being laid out in N-S and E-W orientations to orient trenches they will be buried in. Photo credit: K Key