Supplemental Table A.2. Elastic block model angular velocities -------------------------------------- Moving Fixed Pole Pole Rot. Angular velocity Angular velocity variances and covariances plate plate Lat. Long. rate Cartesian components ------------------------------------------------------------- (N) (E) deg/Myr X Y Z Var_xx Var_yy Var_zz Cov_xy Cov_xz Cov_yz ------ ------ ----- ----- ------ ------- ------- ------- --------- --------- --------- --------- --------- -------- NOAM ITRF08 -6.9 271.4 0.184 0.0046 -0.1824 -0.0220 0.00001 0.00042 0.00023 -0.00001 0.00001 -0.00030 CARI ITRF08 37.0 258.7 0.254 -0.0397 -0.1994 0.1529 0.00265 0.03498 0.00370 -0.00741 0.00208 -0.00953 CARI NOAM 74.8 201.0 0.181 -0.0442 0.0000 -0.0170 0.00000 0.17470 0.00266 0.03540 0.00393 -0.00742 COCO NOAM 31.0 226.3 1.073 -0.6354 0.0000 -0.6649 0.00000 0.55260 0.34000 0.48000 0.39000 -0.05000 COCO CAFS -26.7 -13.2 -0.666 -0.5791 0.0000 0.1359 0.00000 0.29960 0.08000 86.08000 4.53000 -0.90000 COCO* CARI* 23.3 227.6 0.955 -0.5912 0.0000 -0.6484 0.00000 0.37750 0.34000 0.44000 0.38000 -0.04000 CHRT CARI 20.9 -83.7 -0.153 -0.0157 0.0000 0.1417 0.00000 -0.05440 0.03000 21.00000 1.44000 -0.40000 CHRT NOAM -41.1 295.7 -0.184 -0.0600 0.0000 0.1247 0.00000 0.12060 0.03000 21.00000 1.44000 -0.40000 CHRT IPALA -17.0 -61.4 -0.065 -0.0299 0.0000 0.0549 0.00000 0.01910 0.10000 678.65000 47.65000 2.20000 CHRT CAFS 8.1 -89.8 -0.935 -0.0037 0.0000 0.9258 0.00000 -0.13220 0.11000 107.12000 5.96000 -1.30000 CHRT FONS 38.4 -68.6 0.070 0.0201 0.0000 -0.0511 0.00000 0.04350 5.54000 4698.92000 272.90000 -159.20000 CHRT MOPO -25.4 -72.3 -0.183 -0.0503 0.0000 0.1572 0.00000 0.07820 0.04000 33.60000 2.66000 -0.40000 CAFS CARI 5.7 -90.9 0.788 -0.0120 0.0000 -0.7841 0.00000 0.07790 0.08000 86.08000 4.53000 -0.90000 CAFS FONS 10.2 -88.6 0.993 0.0238 0.0000 -0.9769 0.00000 0.17570 5.60000 4764.18000 276.04000 -159.60000 CAFS IPALA 9.9 -91.7 0.884 -0.0262 0.0000 -0.8709 0.00000 0.15140 0.15000 743.73000 50.71000 1.70000 CAFS MOPO 15.3 -93.5 0.798 -0.0466 0.0000 -0.7686 0.00000 0.21040 0.10000 98.72000 5.76000 -0.90000 CAFS NOAM 17.5 -94.0 0.842 -0.0563 0.0000 -0.8011 0.00000 0.25280 0.08000 86.08000 4.53000 -0.90000 ------------------------------------------------------------------------------------------------------------------------ Table footnotes: The Cocos-Caribbean angular velocity is the MORVEL estimate of DeMets et al. (2010). The angular rotation rate is positive anticlockwise. The Cartesian angular velocity components have units of degrees per Myr. The angular velocity covariances are Cartesian and have units of 10^-4 degrees^2 per Myr^2. Abbreviations are as follows: CAFS - Central America forearc sliver; CARI - Caribbean plate; CHRT - Chortis block; COCO - Cocos plate; FONS - Fonseca block ; ITRF08 - International Terrestrial Reference Frame 2008; MOPO - Motagua-Polochic block ; NOAM - North America plate.