Thickness for the B fall unit of the 1982 El Chichon eruptions. Data from Steve Carey. In Carey and Sigurdsson (1986) Thickness(mm) Lat(N) Min Sec Easting Long(W) Min Sec Northing 0 17 51 45 481,459.713 -93 10 30 11,974,981.868 0 17 48 15 481,453.676 -93 10 30 11,968,528.181 0 17 37 0 480,550.324 -93 11 0 11,947,785.281 1.5 17 50 15 498,234.014 -93 1 0 11,972,207.402 1 17 51 30 512,801.917 -92 52 45 11,974,516.346 0 17 44 30 481,005.496 -93 10 45 11,961,613.974 4 17 42 0 503,976.507 -92 57 45 11,956,995.613 5 17 40 15 513,257.170 -92 52 30 11,953,772.825 5 17 38 0 501,767.988 -92 59 0 11,949,619.806 7 17 36 0 515,914.824 -92 51 0 11,945,938.301 4 17 43 45 517,670.529 -92 50 0 11,960,229.837 0 17 27 45 462,837.263 -93 21 0 11,930,754.324 0 17 25 15 461,058.747 -93 22 0 11,926,147.991 2 17 33 30 468,162.972 -93 18 0 11,941,347.506 4 17 30 15 476,999.806 -93 13 0 11,935,342.939 10 17 27 45 474,782.498 -93 14 15 11,930,735.946 12 17 27 15 477,435.957 -93 12 45 11,929,810.896 20 17 27 0 481,417.436 -93 10 30 11,929,345.898 17 17 26 30 479,204.274 -93 11 45 11,928,426.124 30 17 25 15 476,989.344 -93 13 0 11,926,123.712 7 17 33 30 494,251.669 -93 3 15 11,941,323.181 10 17 32 15 484,079.711 -93 9 0 11,939,023.828 20 17 30 30 486,730.977 -93 7 30 11,935,795.173 20 17 29 15 486,729.465 -93 7 30 11,933,490.368 30 17 27 15 484,072.455 -93 9 0 11,929,804.599 21 17 27 0 476,993.000 -93 13 0 11,929,350.432 26 17 25 30 488,937.452 -93 6 15 11,926,574.654 10 17 35 0 515,032.044 -92 51 30 11,944,093.758 11 17 33 0 503,537.596 -92 58 0 11,940,400.746 10 17 29 0 517,694.458 -92 50 0 11,933,032.790 13 17 26 15 521,238.672 -92 48 0 11,927,965.623 1 17 24 15 463,710.569 -93 20 30 11,924,299.225 15 17 24 30 477,872.868 -93 12 30 11,924,739.852 5 17 23 15 467,690.662 -93 18 15 11,922,448.667 25 17 23 30 478,313.447 -93 12 15 11,922,895.543 40 17 22 45 478,311.975 -93 12 15 11,921,512.671 10 17 21 45 470,342.218 -93 16 45 11,919,678.873 40 17 21 45 478,752.667 -93 12 0 11,919,668.378 60 17 21 45 479,637.976 -93 11 30 11,919,667.475 20 17 20 45 471,667.626 -93 16 0 11,917,833.154 100 17 20 45 479,193.442 -93 11 45 11,917,824.098 80 17 20 45 481,849.605 -93 10 15 11,917,821.564 54 17 21 15 481,851.245 -93 10 15 11,919,665.385 140 17 20 45 474,323.800 -93 14 30 11,917,829.641 200 17 20 45 480,521.524 -93 11 0 11,917,822.788 20 17 20 0 474,764.787 -93 14 15 11,916,446.221 40 17 19 45 472,550.541 -93 15 30 11,915,988.118 70 17 19 45 477,863.361 -93 12 30 11,915,981.673 70 17 19 15 471,221.035 -93 16 15 11,915,068.032 60 17 19 15 481,847.148 -93 10 15 11,915,055.838 40 17 18 30 472,990.233 -93 15 15 11,913,682.749 50 17 18 15 473,875.215 -93 14 45 11,913,220.645 40 17 17 30 475,201.926 -93 14 0 11,911,836.130 40 17 17 0 476,086.499 -93 13 30 11,910,913.170 24 17 24 15 495,574.481 -93 2 30 11,924,267.342 35 17 23 15 488,935.196 -93 6 15 11,922,426.045 15 17 20 0 485,832.886 -93 8 0 11,916,435.549 19 17 19 45 499,114.536 -93 0 30 11,915,969.705 35 17 18 30 484,945.404 -93 8 30 11,913,670.463 35 17 16 0 496,899.830 -93 1 45 11,909,055.654 20 17 17 15 503,985.486 -92 57 45 11,911,360.558 30 17 22 15 517,705.301 -92 50 0 11,920,586.908 16 17 10 45 483,605.657 -93 9 15 11,899,382.035 25 17 10 45 488,036.566 -93 6 45 11,899,378.990 15 17 11 0 493,353.799 -93 3 45 11,899,837.537 25 17 11 15 497,784.649 -93 1 15 11,900,297.531 16 17 11 45 506,202.705 -92 56 30 11,901,220.238 7 17 7 30 512,410.123 -92 53 0 11,893,386.965 6 17 3 30 406,888.013 -93 52 30 11,886,216.754