SUB: SUBduction zones

Source catalog	Including 13 orogens	Excluding 13 orogens
1900-1975 (m > 7) from Pacheco & Sykes [1992]	Pacheco_PB2002_MC3_SUB_all.eqc	Pacheco_PB2002_MC3_SUB_pure.eqc
1976-2002 (m > 7) from extended Harvard CMT	CMTm7_PB2002_MC3_SUB_all.eqc	CMTm7_PB2002_MC3_SUB_pure.eqc
merged (m > 7) catalog, 1900-2002	merged_PB2002_MC3_SUB_all.eqc	merged_PB2002_MC3_SUB_pure.eqc
1977-2002 (all magnitudes) from Harvard CMT	CMT_PB2002_MC3_SUB_all.eqc	CMT_PB2002_MC3_SUB_pure.eqc