Issued: December 31, 2000 Prepared by: No: 15 - 100 The following is a list of significant earthquakes during the time period: April 17 to April 23, 2000: April 17 at 21:19:41.940 UTC (April 17, 13:19:41.940 AKDT), mb 4.1, 67.29N -149.71W, depth=10.0 km: A light earthquake was located by NEIC in the ALASKA region of Alaska. This earthquake was: 13 miles ( 21 km) ENE of Coldfoot 13 miles ( 21 km) SE of Wiseman 42 miles ( 68 km) NE of Pump Station #5 59 miles ( 95 km) ENE of Bettles 78 miles (126 km) S of Pump Station #4 79 miles (127 km) SE of Anaktuvuk Pass April 17 at 21:14:55.000 UTC (April 17, 13:14:55.000 AKDT), mb 4.4, 67.44N -149.96W, depth=10.0 km: A light earthquake was located by NEIC in the ALASKA region of Alaska. This earthquake was: 5 miles ( 8 km) NE of Wiseman 15 miles ( 23 km) NNE of Coldfoot 48 miles ( 77 km) NNE of Pump Station #5 59 miles ( 95 km) NE of Bettles 67 miles (107 km) SE of Anaktuvuk Pass 69 miles (111 km) SSW of Pump Station #4 April 21 at 10:24:52.650 UTC (April 21, 02:24:52.650 AKDT), mb 4.4, 51.27N -177.76W, depth=33.0 km: A light earthquake was located by NEIC in the ANDREANOF ISLANDS, ALEUTIAN IS. region of Alaska. This earthquake was: 63 miles (102 km) SW of Adak 141 miles (226 km) E of Amchitka 165 miles (266 km) WSW of Atka 257 miles (414 km) WSW of Amukta Pass 279 miles (450 km) ESE of Buldir Is 359 miles (578 km) ESE of Shemya Is April 21 at 04:35:17.750 UTC (April 20, 20:35:17.750 AKDT), mb 5.8, 51.41N -178.16W, depth=33.0 km: A moderate earthquake was located by NEIC in the ANDREANOF ISLANDS, ALEUTIAN IS. region of Alaska. This earthquake was: 72 miles (116 km) WSW of Adak 123 miles (197 km) E of Amchitka 177 miles (285 km) WSW of Atka 260 miles (419 km) ESE of Buldir Is 270 miles (435 km) WSW of Amukta Pass 340 miles (547 km) ESE of Shemya Is April 20 at 07:19:08.789 UTC (April 19, 23:19:08.789 AKDT), Ml 4.1, 63.05N -150.67W, depth=139.5 km: A light earthquake was located in the CENTRAL ALASKA region of Alaska. This earthquake was: 34 miles ( 54 km) SSE of Kantishna 54 miles ( 86 km) NNW of Talkeetna 58 miles ( 94 km) WSW of Cantwell 65 miles (104 km) WSW of Denali Park 76 miles (122 km) SE of Lake Minchumina 76 miles (123 km) SW of Healy April 17 at 08:22:02.020 UTC (April 17, 00:22:02.020 AKDT), Ml 3.9, 62.34N -154.54W, depth=12.2 km: A minor earthquake was located in the CENTRAL ALASKA region of Alaska. This earthquake was: 47 miles ( 76 km) S of Nikolai 54 miles ( 87 km) SE of McGrath 66 miles (106 km) SE of Takotna 74 miles (120 km) NNE of Lime Village 83 miles (133 km) SSW of Telida 96 miles (155 km) ENE of Sleetmute --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- DATE LAT LON DEPTH MAG RMS SEH SEZ GAP PHASES MINDIST Q T REGION yyyy mo dy (jdy) hh:mn:sec DEG DEG km mb ML sec. km km deg P,S km --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2000 04 17 (108) 01:55:18.665 65.638 -149.727 33.3 2.1 0.66 1.38 1.33 191.2 14 82.17 B - ALASKA 2000 04 17 (108) 05:23:53.619 61.894 -149.381 39.3 1.6 0.54 0.53 0.81 95.2 22 27.47 A - SOUTHERN ALASKA 2000 04 17 (108) 05:57:58.038 60.522 -147.369 14.8 1.4 0.41 2.33 0.81 254.6 11 42.48 B - SOUTHERN ALASKA 2000 04 17 (108) 05:59:00.907 61.658 -149.946 58.3 1.0 0.23 1.38 1.05 280.5 10 43.70 B - SOUTHERN ALASKA 2000 04 17 (108) 07:10:19.986 59.202 -153.640 101.0 1.9 0.25 1.34 0.84 128.2 13 23.24 A - SOUTHERN ALASKA 2000 04 17 (108) 07:53:18.258 61.519 -150.168 6.8 1.8 0.59 0.54 0.83 179.4 16 41.59 A - SOUTHERN ALASKA 2000 04 17 (108) 08:22:02.020 62.342 -154.536 12.2 3.9 1.35 1.43 2.32 134.1 35 98.52 B - CENTRAL ALASKA 2000 04 17 (108) 08:59:11.257 62.529 -149.908 68.5 1.8 0.65 0.95 0.90 116.1 25 23.13 A - CENTRAL ALASKA 2000 04 17 (108) 10:05:55.697 61.658 -150.600 2.2 2.3 0.68 0.83 0.87 127.5 16 67.27 A - SOUTHERN ALASKA 2000 04 17 (108) 12:27:49.349 60.630 -152.396 99.5 1.1 0.45 0.87 1.32 99.4 17 6.34 A - SOUTHERN ALASKA 2000 04 17 (108) 14:21:54.769 63.100 -150.684 126.0 2.6 0.44 1.11 1.16 68.4 35 43.70 A - CENTRAL ALASKA 2000 04 17 (108) 15:40:37.500 64.609 -147.889 19.4 1.7 0.24 0.93 0.44 91.9 10 5.78 A - CENTRAL ALASKA 2000 04 17 (108) 16:59:31.968 60.114 -152.534 94.9 2.4 0.62 1.04 1.23 89.9 22 23.91 A - SOUTHERN ALASKA 2000 04 17 (108) 17:19:00.216 56.362 -153.790 41.8 3.0 0.24 6.31 1.33 301.4 21 172.91 D - KODIAK ISLAND REGION 2000 04 17 (108) 17:35:41.988 61.342 -152.117 117.2 2.1 0.59 1.57 0.60 164.9 22 20.02 B - SOUTHERN ALASKA 2000 04 17 (108) 17:55:32.403 62.633 -148.781 32.9 2.7 0.54 0.65 1.46 59.5 33 57.93 B - CENTRAL ALASKA 2000 04 17 (108) 20:10:11.454 60.036 -151.350 45.9 2.3 0.48 0.75 1.28 64.8 20 39.70 A - KENAI PENINSULA, ALASKA 2000 04 17 (108) 21:14:55.000 67.445 -149.957 10.0 4.4 R ALASKA 2000 04 17 (108) 21:19:41.940 67.294 -149.713 10.0 4.1 R ALASKA 2000 04 17 (108) 22:47:45.919 60.122 -152.680 112.0 2.7 0.56 0.72 0.93 58.8 35 22.13 A - SOUTHERN ALASKA 2000 04 18 (109) 06:15:43.216 61.033 -150.622 17.6 1.4 0.67 0.56 0.14 120.8 34 11.12 A - SOUTHERN ALASKA 2000 04 18 (109) 06:42:39.440 60.355 -147.305 15.0 1.6 0.68 1.41 2.19 145.9 19 46.37 B - SOUTHERN ALASKA 2000 04 18 (109) 08:33:27.204 60.003 -153.013 -5.7 0.0 0.26 0.57 0.25 192.3 12 1.45 A - SOUTHERN ALASKA 2000 04 18 (109) 10:04:23.915 62.258 -150.089 -3.2 2.1 1.21 0.58 0.28 103.7 43 18.79 A - CENTRAL ALASKA 2000 04 18 (109) 12:20:14.534 60.691 -152.163 77.3 1.7 0.79 1.07 0.48 66.2 25 15.68 A - SOUTHERN ALASKA 2000 04 18 (109) 15:40:24.623 59.755 -152.231 68.4 2.1 0.66 0.21 0.49 70.0 53 34.69 A - SOUTHERN ALASKA 2000 04 18 (109) 19:30:20.216 60.792 -150.174 44.7 2.5 0.96 0.65 0.68 57.8 60 26.58 A - KENAI PENINSULA, ALASKA 2000 04 19 (110) 00:44:30.570 63.900 -149.020 0.0Q 2.4 0.72 0.76 0.00 92.6 18 19.01 A - CENTRAL ALASKA 2000 04 19 (110) 01:38:03.948 59.773 -152.586 84.5 2.0 0.57 0.77 0.95 65.7 40 33.91 A - SOUTHERN ALASKA 2000 04 19 (110) 02:18:23.127 61.704 -150.370 46.5 1.8 0.79 0.84 1.27 112.4 30 26.58 A - SOUTHERN ALASKA 2000 04 19 (110) 03:40:20.385 60.214 -153.115 186.8 2.2 0.64 3.66 3.61 190.5 10 34.03 C - SOUTHERN ALASKA 2000 04 19 (110) 04:07:51.148 59.996 -152.204 57.6 2.0 0.94 0.10 0.22 44.1 52 38.81 A - SOUTHERN ALASKA 2000 04 19 (110) 06:23:12.230 62.031 -149.912 49.8 2.3 1.47 0.31 0.28 45.8 71 42.25 A - CENTRAL ALASKA 2000 04 19 (110) 09:30:25.778 61.908 -148.995 56.7 2.9 1.63 0.23 0.28 44.5 56 15.57 A - SOUTHERN ALASKA 2000 04 19 (110) 14:25:56.791 60.615 -150.852 72.9 1.8 0.36 0.93 2.62 85.7 23 82.73 B - KENAI PENINSULA, ALASKA 2000 04 19 (110) 14:30:06.271 59.783 -152.750 90.4 2.1 0.55 0.64 0.85 107.7 21 30.58 A - SOUTHERN ALASKA 2000 04 19 (110) 20:03:04.809 60.492 -151.885 59.4 1.7 0.48 1.34 2.20 145.0 13 47.70 B - KENAI PENINSULA, ALASKA 2000 04 20 (111) 02:36:28.670 61.141 -146.989 2.0 0.8 1.45 1.47 8.58 223.9 8 23.02 D - SOUTHERN ALASKA 2000 04 20 (111) 05:53:31.134 61.268 -152.259 -2.5a -0.1 0.06 264.3 4 1.00 - SOUTHERN ALASKA 2000 04 20 (111) 07:19:08.789 63.054 -150.669 139.5 4.1 0.77 0.07 0.15 47.4 76 48.15 A - CENTRAL ALASKA 2000 04 20 (111) 08:51:52.528 62.131 -150.927 68.2 3.5 0.74 0.15 0.85 52.5 57 76.61 A - CENTRAL ALASKA 2000 04 20 (111) 10:18:37.090 59.914 -153.481 128.6 2.7 0.85 0.59 0.29 126.7 47 32.25 A - SOUTHERN ALASKA 2000 04 20 (111) 11:32:06.789 60.233 -152.233 85.8 2.1 0.89 2.38 2.72 152.0 12 38.36 C - SOUTHERN ALASKA 2000 04 20 (111) 12:08:54.700 59.987 -150.325 12.7 2.3 0.70 0.20 1.41 121.0 41 74.39 B - KENAI PENINSULA, ALASKA 2000 04 20 (111) 14:42:52.061 62.775 -150.688 111.1 3.3 0.82 0.07 0.25 62.9 62 77.84 A - CENTRAL ALASKA 2000 04 20 (111) 16:12:29.219 60.198 -152.870 121.6 2.2 0.74 1.99 1.96 173.8 17 30.02 B - SOUTHERN ALASKA 2000 04 20 (111) 17:05:01.017 60.852 -145.279 -5.3 2.1 1.10 2.09 0.53 219.4 15 40.81 B - SOUTHERN ALASKA 2000 04 21 (112) 04:35:17.750 51.413 -178.157 33.0 5.8 R ANDREANOF ISLANDS, ALEUTIAN IS. 2000 04 21 (112) 05:49:58.431 61.669 -150.797 69.3 1.9 0.56 1.26 1.18 128.8 20 48.48 A - SOUTHERN ALASKA 2000 04 21 (112) 06:25:45.363 63.557 -149.334 106.2 2.2 0.59 1.44 0.49 166.9 21 27.69 B - CENTRAL ALASKA 2000 04 21 (112) 07:30:17.935 61.430 -150.006 53.8 1.7 0.62 0.62 0.54 116.6 24 25.46 A - SOUTHERN ALASKA 2000 04 21 (112) 07:34:36.715 60.027 -148.343 13.6 2.2 0.59 5.97 5.45 293.5 14 92.51 D - KENAI PENINSULA, ALASKA 2000 04 21 (112) 10:24:52.650 51.273 -177.764 33.0 4.4 R ANDREANOF ISLANDS, ALEUTIAN IS. 2000 04 21 (112) 13:55:43.531 63.675 -149.674 41.7 1.7 0.45 3.93 0.90 290.6 13 36.92 C - CENTRAL ALASKA 2000 04 21 (112) 14:19:57.424 60.044 -152.781 93.2 1.8 0.65 8.91 1.52 190.8 8 46.48 D - SOUTHERN ALASKA 2000 04 21 (112) 21:54:47.787 60.559 -151.293 48.0 1.6 0.43 0.94 2.75 186.0 16 60.82 C - KENAI PENINSULA, ALASKA 2000 04 22 (113) 00:12:47.765 63.383 -147.361 -3.6 1.9 0.89 0.51 0.83 91.6 16 34.14 A - CENTRAL ALASKA 2000 04 22 (113) 00:18:39.071 63.346 -147.457 -2.0 1.5 0.82 1.71 1.89 160.2 14 30.25 B - CENTRAL ALASKA 2000 04 22 (113) 02:24:10.263 58.199 -155.639 7.8a 0.8 0.12 0.55 1.05 130.3 12 8.45 A - ALASKA PENINSULA 2000 04 22 (113) 03:14:59.967 61.011 -151.001 31.0 1.8 0.87 0.46 0.57 106.1 21 30.80 A - SOUTHERN ALASKA 2000 04 22 (113) 04:07:50.043 62.099 -149.762 48.6 1.8 0.84 1.00 0.91 110.6 27 50.26 A - CENTRAL ALASKA 2000 04 22 (113) 14:01:34.548 63.198 -150.469 135.7 2.2 0.71 0.48 0.34 186.7 26 29.58 A - CENTRAL ALASKA 2000 04 23 (114) 03:30:58.531 63.478 -150.780 11.3 1.5 0.58 1.84 0.29 223.2 14 10.90 B - CENTRAL ALASKA 2000 04 23 (114) 09:58:41.674 61.166 -146.348 25.1 1.7 0.45 0.71 0.42 65.9 20 3.78 A - SOUTHERN ALASKA 2000 04 23 (114) 12:10:28.930 60.415 -147.375 3.3 1.6 0.50 1.02 0.62 195.2 21 53.93 A - SOUTHERN ALASKA 2000 04 23 (114) 13:58:55.982 64.675 -149.093 13.8 1.0 0.28 0.66 1.44 214.2 11 11.01 B - CENTRAL ALASKA 2000 04 23 (114) 14:29:01.805 61.004 -150.838 2.7 2.3 0.33 0.67 0.33 115.9 17 59.49 A - SOUTHERN ALASKA 2000 04 23 (114) 15:52:33.765 60.885 -147.149 33.6 1.1 0.25 1.29 0.59 166.2 13 3.00 A - SOUTHERN ALASKA 2000 04 23 (114) 23:05:46.993 62.152 -151.112 78.1 2.3 0.65 0.57 1.29 61.7 35 85.29 A - CENTRAL ALASKA