Piedras de Fuego and the Trembling Serpent of Nicoya: On the hunt for ancient shorelines and megathrust earthquakes By Jeff Marshall and Jim Spotila • Newsletter No. 26, Spring 2011 • Greetings from Nicoya Peninsula seismogenic zone, Costa Rica! Jeff and Jim report their joint fieldwork examining the neotectonics and paleoseismology of the Northern Costa Rica fore arc. Follow the guides.

Published September 11, 2014 at 1500 × 739 in Piedras de Fuego and the Trembling Serpent of Nicoya: On the hunt for ancient shorelines and megathrust earthquakes By Jeff Marshall and Jim Spotila • Newsletter No. 26, Spring 2011 • Greetings from Nicoya Peninsula seismogenic zone, Costa Rica! Jeff and Jim report their joint fieldwork examining the neotectonics and paleoseismology of the Northern Costa Rica fore arc. Follow the guides.