Observations from the Folkestone, U.K., earthquake of 28 April 2007 - Sargeant, SL; Stafford, PJ; Lawley, R; Weatherill, G; Weston, A-J; Bommer, JJ; Burton, PW; Free, M; Musson, RMW; Kuuyuor, T; Rossetto, T (Seismological Research Letters, 2008)