Table S2. Summary of single-event locations using dbgenloc and the UPLANDS velocity model. Date Time Latitude Longitude Depth No. phases Magnitude --------- -------- -------- --------- ----- ---------- --------- 4/18/2008 09:36:59 38.4593 -87.8502 17.18 16 5.16 4/18/2008 10:04:00 38.4430 -87.8696 15.25 16 2.66 4/18/2008 10:06:07 38.4414 -87.8928 14.77 11 2.41 4/18/2008 10:15:31 38.4592 -87.8204 18.56 15 2.09 4/18/2008 10:15:39 38.4628 -87.8487 14.90 10 2.23 4/18/2008 10:36:33 38.4610 -87.8566 19.64 16 2.91 4/18/2008 10:37:26 38.4956 -87.9283 12.38 13 3.20 4/18/2008 10:44:11 38.4481 -87.8481 16.13 15 2.32 4/18/2008 10:46:24 38.4579 -87.8491 19.84 16 2.72 4/18/2008 10:57:47 38.4469 -87.8920 20.42 16 2.40 4/18/2008 11:25:26 38.4541 -87.8734 15.52 13 2.12 4/18/2008 11:55:58 38.4362 -87.9047 12.40 15 2.90 4/18/2008 15:14:17 38.4536 -87.8937 16.34 16 4.64 4/18/2008 23:14:33 38.4506 -87.8766 15.46 13 1.70 4/18/2008 23:44:03 38.4555 -87.8531 15.56 10 1.61 4/18/2008 23:46:55 38.4431 -87.8694 11.60 17 2.30 4/19/2008 02:19:52 38.4523 -87.8540 17.50 15 1.25 4/19/2008 02:33:00 38.4522 -87.8655 17.54 14 1.16 4/19/2008 02:35:53 38.4634 -87.8594 14.85 13 0.95 4/19/2008 03:05:53 38.4359 -87.8988 12.19 29 3.02 4/19/2008 03:09:14 38.4597 -87.8724 13.03 22 2.11 4/19/2008 03:37:08 38.4586 -87.8811 18.09 19 1.29 4/19/2008 03:48:06 38.4452 -87.8800 15.36 9 0.90 4/19/2008 03:50:15 38.4518 -87.8555 15.93 23 0.82 4/19/2008 03:55:51 38.4480 -87.8575 14.88 21 0.89 4/19/2008 03:59:41 38.4403 -87.9053 15.06 26 1.97 4/19/2008 04:27:41 38.4540 -87.8428 15.85 23 1.24 4/19/2008 06:41:20 38.4465 -87.8477 15.44 22 1.14 4/19/2008 06:50:43 38.4467 -87.8536 14.65 23 2.04 4/19/2008 07:30:10 38.4389 -87.9097 17.07 17 1.49 4/19/2008 07:38:01 38.4464 -87.8600 15.27 15 0.87 4/19/2008 07:49:44 38.4441 -87.8507 15.81 16 1.01 4/19/2008 08:25:08 38.4569 -87.8667 16.00 18 1.10 4/19/2008 09:46:44 38.4510 -87.8478 12.15 26 2.34 4/19/2008 10:06:58 38.4531 -87.8587 17.83 18 1.36 4/19/2008 10:59:07 38.3980 -87.9659 13.14 20 1.59 4/19/2008 12:00:35 38.4505 -87.8586 16.12 15 1.18 4/19/2008 12:41:33 38.4466 -87.8475 19.15 20 1.87 4/19/2008 12:45:38 38.4583 -87.8958 15.10 29 2.48 4/19/2008 12:46:43 38.4502 -87.8709 16.40 21 2.51 4/19/2008 13:08:57 38.4504 -87.8680 16.00 18 1.78 4/19/2008 13:17:26 38.4613 -87.8990 15.99 17 1.63 4/19/2008 14:01:01 38.4385 -87.9259 14.04 12 1.37 4/19/2008 16:55:18 38.4323 -87.8835 10.64 28 3.27 4/19/2008 19:03:36 38.4516 -87.8797 18.50 22 2.02 4/19/2008 19:28:51 38.4536 -87.8697 15.12 22 2.34 4/19/2008 19:57:45 38.4543 -87.8600 15.75 18 1.51 4/19/2008 21:03:10 38.4571 -87.8471 15.10 20 1.55 4/19/2008 22:04:39 38.4557 -87.8578 17.22 19 1.51 4/19/2008 23:31:23 38.4513 -87.8560 13.20 22 2.19 4/19/2008 23:33:49 38.4518 -87.8701 14.55 14 1.00 4/20/2008 01:19:29 38.4463 -87.8545 15.75 18 1.42 4/20/2008 02:17:27 38.4442 -87.8404 16.59 27 1.99 4/20/2008 03:19:27 38.4497 -87.8711 14.35 25 1.76 4/20/2008 04:35:28 38.4497 -87.8699 14.69 22 1.09 4/20/2008 04:45:57 38.4442 -87.9069 18.49 23 1.65 4/20/2008 05:02:42 38.4619 -87.8412 13.82 32 2.99 4/20/2008 05:09:42 38.4419 -87.8849 14.42 24 1.21 4/20/2008 05:21:50 38.4583 -87.8741 16.32 24 1.62 4/20/2008 05:31:42 38.4600 -87.8778 14.99 32 2.44 4/20/2008 06:32:02 38.4499 -87.8358 17.55 29 1.91 4/20/2008 07:42:32 38.4485 -87.8471 18.67 22 1.52 4/20/2008 08:51:56 38.4366 -87.8432 16.19 21 1.09 4/20/2008 09:59:44 38.4564 -87.8602 15.22 27 2.00 4/20/2008 10:34:26 38.4574 -87.8825 18.80 32 2.88 4/20/2008 15:51:11 38.4614 -87.8933 18.57 31 2.23 4/20/2008 18:16:45 38.4566 -87.8846 17.64 21 1.55 4/20/2008 18:27:50 38.4545 -87.8723 14.68 21 1.62 4/20/2008 20:05:55 38.4418 -87.9111 13.94 18 1.20 4/20/2008 20:37:45 38.4472 -87.8454 17.45 19 1.07 4/20/2008 20:54:04 38.4489 -87.8810 17.82 20 1.35 4/20/2008 21:38:42 38.4564 -87.8745 15.23 10 1.18 4/20/2008 22:30:41 38.4559 -87.8582 17.14 20 1.34 4/20/2008 23:05:12 38.4547 -87.8647 17.96 24 1.11 4/21/2008 00:37:50 38.4627 -87.9053 15.72 20 1.43 4/21/2008 00:45:19 38.4903 -87.8584 15.44 16 1.13 4/21/2008 02:10:04 38.4675 -87.9062 19.36 20 1.08 4/21/2008 04:05:55 38.4564 -87.8587 15.31 23 1.19 4/21/2008 04:11:20 38.4544 -87.8627 16.59 29 2.01 4/21/2008 04:13:26 38.4560 -87.8814 14.78 24 1.25 4/21/2008 04:33:35 38.4487 -87.8865 19.09 25 1.29 4/21/2008 05:38:30 38.4560 -87.8704 17.77 36 4.19 4/21/2008 07:58:46 38.4556 -87.8883 14.27 34 2.71 4/21/2008 08:37:16 38.4465 -87.8702 18.98 21 0.96 4/21/2008 08:56:41 38.4534 -87.8826 17.28 21 0.94 4/21/2008 08:59:39 38.4607 -87.8795 17.66 25 1.07 4/21/2008 09:45:12 38.4495 -87.8818 16.06 31 2.26 4/21/2008 10:12:31 38.4532 -87.8833 17.76 20 1.31 4/21/2008 11:47:15 38.4471 -87.8476 17.29 20 1.16 4/21/2008 15:14:47 38.4499 -87.8799 17.45 23 1.37 4/21/2008 17:39:33 38.4504 -87.8926 18.15 23 1.29 4/21/2008 18:26:35 38.4570 -87.8681 17.67 25 1.95 4/21/2008 19:08:24 38.4565 -87.8915 16.19 22 1.56 4/21/2008 20:03:55 38.4379 -87.9065 17.42 24 1.33 4/21/2008 20:20:25 38.4680 -87.8837 9.27 30 2.31 4/21/2008 22:30:31 38.4481 -87.8877 17.44 23 1.48 4/22/2008 07:33:48 38.4414 -87.9059 15.99 20 1.19 4/22/2008 07:42:32 38.4391 -87.9062 18.23 22 1.27 4/22/2008 07:43:39 38.4591 -87.8660 16.04 22 1.08 4/22/2008 08:01:01 38.4726 -87.8563 9.60 30 2.52 4/22/2008 08:32:25 38.4574 -87.8847 17.88 27 1.98 4/22/2008 08:38:53 38.4571 -87.8853 18.08 25 2.21 4/22/2008 10:46:23 38.4492 -87.8615 15.93 20 0.84 4/22/2008 13:48:19 38.4486 -87.8509 16.21 20 1.19 4/23/2008 01:32:35 38.4486 -87.8595 11.28 31 2.70 4/23/2008 05:52:54 38.4826 -87.8552 16.00 26 2.06 4/23/2008 10:44:59 38.4683 -87.9044 14.00 24 1.60 4/23/2008 16:23:56 38.4527 -87.8817 15.24 19 1.54 4/23/2008 19:27:31 38.4494 -87.8893 15.02 17 1.39 4/23/2008 21:22:18 38.4478 -87.8725 14.39 22 1.55 4/24/2008 05:56:43 38.4566 -87.8756 15.66 29 1.25 4/24/2008 10:23:52 38.4575 -87.8699 17.52 28 1.32 4/24/2008 11:44:24 38.4657 -87.8791 19.18 38 3.09 4/24/2008 15:38:58 38.4555 -87.8851 14.87 25 1.97 4/24/2008 22:08:09 38.4380 -87.9084 14.96 18 1.13 4/25/2008 00:11:07 38.4521 -87.8448 16.80 16 1.04 4/25/2008 01:49:12 38.4518 -87.8614 16.53 30 1.97 4/25/2008 05:08:48 38.4491 -87.8734 15.47 20 0.87 4/25/2008 07:32:12 38.4564 -87.8739 18.61 18 0.75 4/25/2008 10:15:48 38.4499 -87.8654 18.07 22 1.24 4/25/2008 15:28:11 38.4490 -87.8546 16.41 22 1.51 4/25/2008 17:31:00 38.4586 -87.8833 14.83 36 4.00 4/25/2008 17:38:32 38.4582 -87.8853 14.91 23 1.55 4/25/2008 18:52:54 38.4581 -87.8994 18.25 21 1.37 4/25/2008 23:00:46 38.4378 -87.9065 14.40 19 1.56 4/26/2008 01:06:51 38.4584 -87.8638 16.29 16 1.04 4/26/2008 04:45:36 38.4476 -87.8506 18.07 23 1.44 4/26/2008 12:35:32 38.4566 -87.8671 18.80 19 0.96 4/26/2008 13:23:12 38.4397 -87.9191 14.72 25 1.75 4/26/2008 15:00:50 38.4531 -87.8887 17.94 19 1.17 4/26/2008 20:14:46 38.4532 -87.8700 17.36 24 1.76 4/27/2008 01:34:20 38.4486 -87.8610 17.96 20 1.09 4/27/2008 02:33:13 38.4409 -87.8474 18.72 12 0.93 4/27/2008 04:52:31 38.4495 -87.8673 15.56 8 1.15 4/27/2008 08:08:23 38.4588 -87.8693 17.24 25 1.45 4/27/2008 08:26:58 38.4583 -87.8719 15.52 19 0.90 4/27/2008 08:57:28 38.4407 -87.9007 14.66 16 0.76 4/27/2008 11:25:02 38.4529 -87.8642 16.64 23 0.90 4/27/2008 12:05:17 38.4532 -87.8530 17.91 12 0.88 4/27/2008 16:48:19 38.4575 -87.8897 15.66 20 1.07 4/27/2008 16:49:12 38.4538 -87.8575 17.53 22 1.13 4/27/2008 23:01:21 38.4502 -87.8685 17.19 21 4/28/2008 06:39:27 38.4430 -87.9062 15.21 24 2.00 4/28/2008 06:55:55 38.4639 -87.8986 15.03 23 1.35 4/28/2008 07:35:45 38.4479 -87.8534 15.30 24 2.06 4/28/2008 09:20:56 38.4496 -87.8693 18.24 22 1.31 4/28/2008 21:46:59 38.4495 -87.8529 15.18 31 2.38 4/29/2008 05:24:56 38.4645 -87.9173 18.96 24 1.72 4/30/2008 04:24:48 38.4527 -87.8613 16.44 20 1.34 4/30/2008 17:27:37 38.4516 -87.8790 18.07 21 1.49 4/30/2008 19:29:19 38.4580 -87.8660 17.55 30 3.09 4/30/2008 20:25:28 38.4489 -87.8682 15.26 20 1.44 5/1/2008 00:53:34 38.4489 -87.8521 16.25 19 1.48 5/1/2008 05:30:38 38.4559 -87.8660 17.30 34 3.50 5/1/2008 06:22:25 38.4462 -87.8313 18.44 21 1.22 5/1/2008 20:10:56 38.4528 -87.8687 17.36 22 1.64 5/2/2008 04:13:31 38.4560 -87.8727 15.17 24 2.40 5/2/2008 11:39:18 38.4531 -87.8763 17.44 22 1.45 5/3/2008 00:34:19 38.4557 -87.8464 17.13 19 2.32 5/3/2008 03:18:59 38.4720 -87.9304 17.51 15 1.09 5/3/2008 14:21:54 38.4586 -87.8700 15.87 13 5/3/2008 14:42:43 38.4414 -87.9087 15.05 11 1.36 5/5/2008 08:17:05 38.4493 -87.9088 14.53 21 1.80 5/5/2008 14:56:09 38.4582 -87.8748 16.47 23 2.33 5/5/2008 17:56:56 38.4552 -87.8687 15.08 20 1.71 5/6/2008 07:55:07 38.4567 -87.8708 17.12 21 2.12 5/6/2008 07:57:03 38.4600 -87.8727 17.50 21 2.17 5/6/2008 13:21:54 38.4674 -87.8630 18.69 18 1.97 5/9/2008 14:43:42 38.4533 -87.8794 15.22 16 1.41 5/10/2008 11:57:39 38.4547 -87.8664 18.26 21 1.78 5/16/2008 03:46:11 38.4515 -87.8773 15.47 20 2.18 5/19/2008 04:07:24 38.4577 -87.8834 15.54 18 2.14 6/1/2008 14:56:12 38.4532 -87.8517 14.19 11