A Seafloor Spreading Event Captured by Seismometers Posted on July 1, 2014 by UHNAI Webmaster in Tolstoy, M., Cowen, J., Baker, E., Fornari, D., Rubin, K., Shank, T., Waldhauser, F., Bohnenstiehl, D., Forsyth, D., Holmes, R., Perfit, M., Weekly, R., et al. (). A Seafloor Spreading Event Captured by Seismometers. , 22,