Issued: [April 13, 1999 Prepared by: Lalitha Rao No. 15- 99 The following is a list of significant earthquakes during the time period April 5 - 11, 1999 April 5 at 07:05 UTC (11:05 pm ADT), ML 3.1, 60 N 13', 152 W 48', depth = 119 km (74 mi): A minor earthquake was located in the Cook Inlet region of Alaska about 41 mi ( 65 km) WNW of Ninilchik 46 mi ( 74 km) NW of Anchor Point 48 mi ( 78 km) W of Clam Gulch 52 mi ( 84 km) E of Port Alsworth 53 mi ( 85 km) W of Kasilof April 8 at 03:32 UTC (07:32 pm ADT), ML 3.4, 54 N 2', 164 W 44', depth = 77 km (48 mi): A minor earthquake was located in the Unimak Island region of Alaska about 43 mi ( 69 km) E of Akutan 74 mi (119 km) E of Dutch Harbor 75 mi (120 km) E of Unalaska 78 mi (125 km) SW of False Pass 113 mi (183 km) SW of Cold Bay April 11 at 05:51 UTC (09:51 pm ADT), ML 3.5, 53 N 36', 164 W 33', depth = 9 km (5 mi): A minor earthquake was located in the Unimak Island region of Alaska about 62 mi (100 km) SE of Akutan 83 mi (134 km) ESE of Dutch Harbor 84 mi (134 km) ESE of Unalaska 98 mi (158 km) SSW of False Pass 132 mi (213 km) SW of Cold Bay _______________________________________________________________________________________________________________________________________________________ DATE TIME LATITUDE LONGITUDE DEPTH PREF. RMS SEH SEZ GAP PHASES MIN Q T REGION, OTHER MAGNITUDES, FELT REPORTS AND COMMENTS YEAR MO DY HR MN SEC DEG MIN DEG MIN KM MAG SEC. KM KM DEG P S DIS _______________________________________________________________________________________________________________________________________________________ 1999 4 5 2 33 14.54 60 9.49N 153 0.56W 103.8 2.0 0.17 1.71 1.64 69 14 7 9 A E COOK INLET. 1999 4 5 2 34 23.92 60 30.77N 152 48.87W 5.9 0.2 0.02 1.23 3.10 145 4 5 4 B a COOK INLET. 1999 4 5 3 12 56.69 60 26.96N 147 43.32W 7.1 0.9 0.17 1.83 3.93 106 9 7 46 B E PR WILLIAM SOUND. 1999 4 5 3 30 41.65 60 31.31N 152 41.92W 7.8 0.6 0.03 1.92 2.66 194 4 5 2 B a COOK INLET. 1999 4 5 6 42 39.87 61 50.53N 151 9.94W 68.7 1.7 0.24 4.73 11.25 149 15 5 71 D E COOK INLET. 1999 4 5 7 5 30.31 60 13.10N 152 47.60W 119.4 3.1 0.15 3.68 4.91 98 15 3 92 B E COOK INLET. 1999 4 5 8 24 56.52 60 5.29N 152 34.39W 95.8 2.2 0.22 2.06 1.87 76 16 12 22 A E COOK INLET. 1999 4 5 8 26 56.43 61 24.77N 146 43.32W 30.5 1.2 0.23 1.05 3.71 112 15 9 38 B E PR WILLIAM SOUND. 1999 4 5 8 34 7.82 60 18.48N 151 31.42W 69.3 1.8 0.34 3.11 6.67 81 16 8 32 C E KENAI PEN. 1999 4 5 9 7 41.46 58 47.83N 152 35.06W 53.1 2.0 0.20 3.54 6.12 109 15 9 24 C E KODIAK IS REG. 1999 4 5 9 31 37.48 61 32.11N 146 24.33W 31.8 1.6 0.29 2.33 3.72 66 17 7 26 B E PR WILLIAM SOUND. 1999 4 5 13 38 14.71 62 15.03N 150 22.29W 29.8 2.9 0.32 2.62 2.20 75 16 11 18 B E CENTRAL AK. 1999 4 5 18 30 59.95 60 58.54N 146 30.64W 18.4 1.6 0.26 1.08 0.77 69 14 9 10 A E PR WILLIAM SOUND. 1999 4 6 6 46 55.71 59 37.89N 152 16.29W 80.4 2.5 0.27 1.05 3.04 83 19 15 36 B E COOK INLET. 1999 4 6 7 5 44.30 61 44.03N 147 19.27W 39.2 1.6 0.29 2.44 2.00 79 16 6 11 A E PR WILLIAM SOUND. 1999 4 6 8 20 57.54 54 36.37N 161 17.60W 15.0 2.6 0.20 4.11 6.66 243 14 10 71 C E ALASKA PEN. 1999 4 6 10 41 18.29 58 23.63N 155 4.64W 117.7 2.4 0.15 15.90 6.09 124 10 8 10 D E ALASKA PEN. 1999 4 6 11 18 27.81 61 0.16N 150 16.41W 42.4 1.8 0.21 2.07 4.00 108 16 8 47 B E COOK INLET. 1999 4 6 12 57 4.06 59 55.62N 151 10.53W 31.7 1.9 0.28 1.85 2.95 56 15 6 15 B E KENAI PEN. 1999 4 6 13 36 36.22 54 5.29N 164 3.86W 12.4 2.5 0.20 3.51 6.26 204 19 8 55 C E UNIMAK IS. 1999 4 6 14 27 50.03 65 12.90N 148 29.58W 16.1 2.5 0.28 1.91 2.09 99 15 8 31 A E N CENTRAL AK. 1999 4 6 17 49 58.62 61 42.05N 150 50.22W 55.6 2.3 0.32 1.69 2.99 76 17 11 51 B E COOK INLET. 1999 4 7 8 39 44.63 60 3.28N 151 58.68W 55.7 1.9 0.33 1.76 4.22 72 16 12 38 B E KENAI PEN. 1999 4 7 8 51 3.93 60 48.91N 146 43.82W 16.5 1.7 0.31 0.60 1.12 58 17 9 12 A E PR WILLIAM SOUND. 1999 4 7 9 35 42.44 61 33.04N 146 33.96W 14.5 1.3 0.26 1.12 5.38 58 16 8 35 C E PR WILLIAM SOUND. 1999 4 7 12 3 40.34 61 20.93N 147 11.38W 18.2 1.6 0.14 0.77 1.95 84 15 7 46 A E PR WILLIAM SOUND. 1999 4 7 13 46 5.78 61 44.43N 147 50.05W 29.3 1.3 0.28 1.39 3.13 68 16 12 27 B E PR WILLIAM SOUND. 1999 4 7 21 1 5.54 59 49.80N 152 55.35W 109.5 2.0 0.19 2.05 1.99 63 16 15 16 A E COOK INLET. 1999 4 8 0 55 56.86 64 11.33N 148 25.38W 130.5 2.3 0.13 1.45 4.32 61 15 9 51 B E CENTRAL AK. 1999 4 8 1 51 43.53 62 14.18N 149 3.47W 40.0 1.7 0.43 0.89 4.62 73 15 12 52 B E CENTRAL AK. 1999 4 8 3 32 36.89 54 2.01N 164 43.62W 77.2 3.4 0.19 21.42 14.12 229 14 13 50 D E UNIMAK IS. 1999 4 8 7 29 5.53 63 9.04N 149 22.26W 76.8 2.3 0.27 1.43 2.47 54 17 9 23 A E CENTRAL AK. 1999 4 8 12 10 44.07 61 46.12N 150 16.09W 37.6 1.7 0.39 2.68 2.86 123 17 11 24 B E COOK INLET. 1999 4 8 15 13 10.58 58 11.97N 155 34.95W 5.7 2.2 0.17 0.96 1.97 114 13 8 5 A E ALASKA PEN. 1999 4 8 15 33 24.44 61 48.81N 149 39.47W 39.8 1.2 0.12 7.24 12.69 122 8 5 22 D E COOK INLET. 1999 4 8 19 5 44.30 62 57.72N 148 42.82W 67.5 2.4 0.16 1.82 4.11 84 15 10 47 B E CENTRAL AK. 1999 4 8 20 9 49.82 61 37.39N 147 43.57W 25.6 1.9 0.37 0.93 3.65 63 17 10 31 B E PR WILLIAM SOUND. 1999 4 9 0 11 0.10 60 10.99N 152 35.23W 96.9 2.4 0.21 1.51 1.92 92 18 14 24 A E COOK INLET. 1999 4 9 1 5 7.60 60 55.12N 147 17.56W 33.2 1.0 0.20 1.62 1.41 129 8 7 12 A E PR WILLIAM SOUND. 1999 4 9 6 13 5.92 60 9.64N 147 49.85W 1.2 2.1 0.21 3.97 4.58 176 15 10 83 B E PR WILLIAM SOUND. 1999 4 9 6 14 24.93 60 5.71N 147 51.43W 15.5 2.1 0.17 3.02 2.93 81 16 9 6 B E PR WILLIAM SOUND. 1999 4 9 11 43 7.28 64 24.24N 145 32.65W 8.1 2.5 0.26 1.59 2.53 132 14 7 68 B E E CENTRAL AK. 1999 4 9 12 0 47.70 64 24.43N 145 33.68W 8.5 2.9 0.38 0.90 1.02 132 14 10 67 A E E CENTRAL AK. 1999 4 9 12 3 5.91 58 10.63N 155 18.73W 3.5 0.7 0.10 2.83 2.59 204 6 4 4 B a ALASKA PEN. 1999 4 9 12 5 11.16 63 16.21N 151 21.98W 10.6 2.9 0.17 2.29 2.37 78 19 6 39 A E CENTRAL AK. 1999 4 9 12 42 21.41 61 15.95N 146 49.28W 20.1 1.1 0.22 0.79 7.26 85 15 10 26 C E PR WILLIAM SOUND. 1999 4 9 12 57 34.85 59 43.18N 152 41.07W 79.7 2.2 0.22 1.55 3.49 68 18 14 32 B E COOK INLET. 1999 4 9 16 45 39.80 59 35.53N 153 5.37W 106.8 2.0 0.15 2.67 5.17 90 17 9 10 C E COOK INLET. 1999 4 10 21 23 38.42 61 38.90N 150 46.21W 42.2 2.0 0.32 2.92 8.17 78 18 13 47 C E COOK INLET.