# sourcedate Long.°E Lat.°N Dep.km Strike Dip Rake Mag. De la Torre et al., 2007 (FMs from previous studies) 1965/01/12 87.84 27.40 15 90.0 75.0 90.0 5.9 1973/08/01 89.17 29.59 85 322.2 69.4 -147.6 4.9 1974/03/24 86.11 27.73 16 95.0 88.0 90.0 4.8 1976/09/14 89.54 29.78 90 215.5 52.3 -67.9 5.4 1979/06/19 87.48 26.74 21 247.7 47.1 -94.6 5.2 1980/11/19 88.80 27.39 44 299.8 87.9 -160.8 6.0 1986/01/10 86.57 28.66 85 37.8 77.7 -45.6 5.5 1988/08/20 86.59 26.73 51 134.9 82.6 108.6 6.4 1991/12/21 88.14 27.90 70 294.6 83.1 -177.9 4.7 1992/03/07 89.37 29.44 80 253.4 73.5 -22.4 4.2 1992/04/04 87.98 28.15 80 47.6 67.2 -20.8 4.8 1997/01/31 85.34 28.06 13 240.2 75.8 112.5 5.9 De la Torre et al., 2007 (FMs from HIMNT 2001-2003) 2001/10/19 87.49 28.17 78 83.0 48.7 -135.0 3.3 # 2001/11/07 85.60 29.99 22 153.7 37.2 -111.7 4.0 2001/12/02 88.31 27.34 13 131.1 81.9 151.8 4.8 2002/01/05 87.68 28.13 82 85.8 88.3 166.0 3.4 2002/03/07 84.83 29.56 66 231.9 78.2 5.5 4.0 # 2002/03/23 87.99 29.98 1 337.7 61.1 -109.6 4.3 2002/05/02 86.74 27.73 28 329.0 71.2 -132.5 3.8 2002/05/08 86.51 28.51 83 124.8 65.0 -167.6 3.6 2002/06/20 89.00 26.25 28 237.2 71.6 -9.2 4.6 2002/07/02 84.78 27.11 84 74.1 69.1 8.7 3.7 2002/07/16 87.75 27.81 62 333.3 31.4 -123.7 3.7 2002/07/18 87.92 28.20 93 83.5 60.8 164.2 3.6 # 2002/08/22 88.23 30.07 17 110.2 52.6 143.6 4.3 # 2002/08/31 88.12 29.92 1 332.0 74.3 -101.0 4.7 2002/10/29 87.63 28.11 52 88.8 75.6 -136.3 3.6 2003/02/26 86.57 28.46 73 79.1 48.6 -20.5 3.9 2003/03/25 89.60 27.18 28 231.8 86.6 7.2 5.2 # are earthquakes not plotted in Fig. 1 to preserve clarity; and would not change our result Diehl et al., 2017 (GANSSER Catalog) 2013/10/03 88.72 27.34 27 274.3 48.5 78.8 5.4 2013/12/04 89.60 26.57 25 228.2 87.5 0.6 5.3 2013/06/06 90.26 28.02 77 136.6 78.9 -163.8 4.5 2013/10/29 91.28 27.28 17 104.7 70.3 163.6 4.9 2014/11/25 88.94 27.20 24 235.9 67.7 -5.2 4.7 2014/04/12 90.94 27.52 19 75.1 82.3 101.5 4.1 2013/12/16 89.41 26.74 27 324.0 71.1 -141.1 4.3 2013/03/04 91.37 26.07 27 332.3 87.2 114.7 4.2 2014/07/22 89.94 26.16 23 64.1 64.8 18.1 5.0 2014/07/22 89.94 26.15 23 60.2 69.1 13.8 4.8 2014/07/22 89.94 26.17 22 59.0 67.0 21.6 4.4 2014/09/12 90.27 26.04 30 78.9 87.5 11.8 4.9 2014/05/30 90.35 26.62 32 127.2 72.9 158.1 4.5 Baur 2007 (Masters Thesis) 2001/09/27 87.59 26.82 27 50.0 54.0 -53.0 3.8 2003/03/31 91.83 26.53 65 307.0 74.0 45.0 3.9 2004/02/27 87.66 28.13 92 108.0 54.0 -133.0 4.6 2004/08/04 90.26 25.92 53 353.0 89.0 54.0 4.1 2004/11/10 87.78 27.93 66 263.0 69.0 79.0 4.4 2005/05/08 90.26 30.10 98 317.0 66.0 -149.0 4.8 GCMT Catalog (Dziewonski et al., 1981) (2005-2018 Dep. > 25 km) 2005/03/26 87.95 28.08 70 109.0 62.0 179.0 4.7 2005/08/20 88.09 31.08 96 89.0 44.0 74.0 4.9 2010/02/26 86.77 28.41 85 12.0 69.0 -16.0 5.1 2015/04/27 88.27 26.66 27 154.0 57.0 -157.0 5.1 2015/06/28 90.59 26.38 40 234.0 78.0 11.0 5.3 2018/09/12 90.26 26.22 27 248.0 72.0 4.0 5.4