[1] Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea
[2] Stanford Univ, Dept Geophys, Stanford Ctr Induced & Triggered Seism, Stanford, CA 94305 USA
[3] ETH, Energy Sci Ctr, Dept Earth Sci, Zurich, Switzerland
[4] Victoria Univ Wellington, Sch Geog Environm & Earth Sci, Wellington, New Zealand
[5] Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA
[6] China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing, Peoples R China
[7] Chonnam Natl Univ, Fac Earth Syst & Environm Sci, Gwangju, South Korea
[8] Pukyong Natl Univ, Dept Earth & Environm Sci, Busan, South Korea
[9] Chungnam Natl Univ, Dept Geol Sci, Daejeon, South Korea