Issued: December 22 ,, 1998 Prepared by: Lalitha Rao No. 49- 98 The following is a list of significant earthquakes during the time period December 14 - 20, 1998 December 14 at 13:54 UTC (04:54 am AST), ML 3.7, 54 N 2', 163 W 19', depth = 0 km (0 mi): A minor earthquake was located in the Unimak Island region of Alaska about 57 mi ( 91 km) S of False Pass 82 mi (132 km) SSW of King Cove 83 mi (134 km) SSW of Cold Bay 100 mi (161 km) E of Akutan 131 mi (211 km) E of Dutch Harbor December 16 at 05:54 UTC (Dec.15, 08:54 pm AST), ML 4.2, 56 N 46', 135 W 43', depth = 12 km (8 mi): A light earthquake was located in southeastern Alaska about 25 mi ( 40 km) SW of Sitka 55 mi ( 89 km) NW of Port Alexander 66 mi (107 km) SW of Angoon 69 mi (111 km) W of Kake 72 mi (116 km) SSW of Tenakee Springs December 20 at 12:23 UTC (03:23 am AST), mb 4.0, 54 N 2', 168 W 9', depth = 118 km (73 mi): A light earthquake was located by NEIC in the Fox Islands region of Alaska about 67 mi (107 km) W of Unalaska 67 mi (108 km) W of Dutch Harbor 82 mi (131 km) NNE of Nikolski 97 mi (156 km) W of Akutan 198 mi (319 km) NE of Amukta Pass _____________________________________________________________________________________________________________________________________________________ DATE TIME LATITUDE LONGITUDE DEPTH PREF. RMS SEH SEZ GAP PHASES MIN Q T REGION, OTHER MAGNITUDES, FELT REPORTS AND COMMENTS YR MO DY HR MN SEC DEG MIN DEG MIN KM MAG SEC. KM KM DEG P S DIS _____________________________________________________________________________________________________________________________________________________ 98 12 14 0 5 15.00 61 18.96N 147 48.50W 29.5 1.8 0.35 0.93 2.23 60 15 9 15 A E PR WILLIAM SOUND. 98 12 14 3 22 4.38 61 29.72N 148 5.31W 30.2 0.9 0.22 1.04 2.55 67 12 5 22 B E PR WILLIAM SOUND. 98 12 14 4 17 59.11 61 50.98N 149 38.71W 42.3 1.5 0.14 3.03 4.07 123 12 7 25 B E COOK INLET. 98 12 14 7 14 30.18 64 41.64N 147 34.17W 15.7 1.4 0.35 3.27 3.40 91 8 4 12 B E CENTRAL AK. 98 12 14 13 54 7.76 54 1.99N 163 19.20W 0.0 3.7 0.34 3.27 2.71 205 17 11 73 B E UNIMAK IS. 98 12 14 21 2 0.35 62 56.00N 151 10.61W 112.9 2.3 0.23 5.31 5.02 134 18 7 70 C E CENTRAL AK. 98 12 14 23 13 12.75 60 53.59N 146 28.60W 14.6 1.0 0.15 2.91 1.98 110 7 4 19 B E PR WILLIAM SOUND. 98 12 15 1 12 24.12 62 58.03N 148 45.47W 8.0 1.8 0.12 2.73 6.52 85 13 3 45 C E CENTRAL AK. 98 12 15 6 50 50.38 62 1.20N 150 52.42W 62.9 1.9 0.09 3.47 10.59 98 12 3 53 D E CENTRAL AK. 98 12 15 8 14 32.51 61 28.18N 148 48.01W 40.1 1.2 0.09 2.79 3.81 57 10 4 19 B E PR WILLIAM SOUND. 98 12 15 11 39 41.69 59 46.19N 153 0.87W 100.0 2.0 0.12 8.80 7.38 97 12 4 18 C E COOK INLET. 98 12 15 12 56 39.66 62 16.78N 149 5.82W 48.0 1.7 0.10 2.81 6.86 63 11 4 57 C E CENTRAL AK. 98 12 15 13 16 55.11 61 35.41N 150 4.26W 30.7 1.8 0.19 3.01 5.99 100 13 7 12 C E COOK INLET. 98 12 15 16 9 3.16 59 38.61N 150 55.84W 42.1 1.7 0.19 5.78 6.00 142 13 6 14 C E KENAI PEN. 98 12 15 16 12 4.21 63 15.07N 151 4.82W 6.3 2.3 0.16 1.78 4.26 76 12 4 35 B E CENTRAL AK. 98 12 15 16 23 15.25 61 39.25N 146 27.10W 37.8 1.3 0.17 4.45 11.21 82 13 6 33 D E PR WILLIAM SOUND. 98 12 15 16 25 46.74 60 10.28N 152 46.85W 87.1 1.6 0.11 7.63 7.82 73 10 4 14 C E COOK INLET. 98 12 15 19 55 40.74 60 55.78N 147 22.44W 23.8 1.5 0.25 2.66 2.35 78 16 4 16 B E PR WILLIAM SOUND. 98 12 16 4 49 40.14 60 28.83N 148 18.27W 2.1 2.0 0.33 1.26 2.21 89 16 10 42 A E KENAI PEN. 98 12 16 4 50 31.42 60 16.49N 150 36.92W 44.0 2.1 0.17 1.61 4.09 97 13 7 34 B E KENAI PEN. 98 12 16 5 54 24.19 56 46.28N 135 43.21W 12.4 4.2 0.53 68.65 72.57 263 16 2 40 D E SOUTHEASTERN AK. 98 12 16 6 13 45.01 59 57.70N 153 1.62W 120.1 2.7 0.26 3.35 3.33 72 15 12 2 B E COOK INLET. 98 12 16 9 40 37.69 62 44.25N 150 52.95W 87.6 2.5 0.19 2.63 3.91 103 22 10 49 B E CENTRAL AK. 98 12 16 16 17 47.49 59 30.24N 152 46.56W 80.9 2.6 0.18 2.31 3.11 80 24 16 31 B E COOK INLET. 98 12 16 19 11 25.98 62 12.08N 148 15.49W 38.1 2.7 0.20 0.97 4.78 50 16 9 44 B E CENTRAL AK. 98 12 16 21 10 48.02 62 52.65N 149 29.90W 73.4 2.0 0.19 2.52 4.01 111 17 11 13 B E CENTRAL AK. 98 12 17 1 18 44.11 61 21.10N 146 42.05W 20.9 1.7 0.11 1.70 5.00 54 14 5 31 C E PR WILLIAM SOUND. 98 12 17 5 52 19.69 59 48.63N 153 18.95W 113.7 1.9 0.10 9.63 10.62 77 12 3 18 D E COOK INLET. 98 12 17 5 52 19.06 59 50.43N 153 17.50W 120.6 2.4 0.27 2.66 4.11 118 16 7 18 B E COOK INLET. 98 12 17 7 37 30.61 63 37.57N 149 46.08W 128.1 2.7 0.22 2.18 3.10 111 15 5 32 B E CENTRAL AK. 98 12 17 9 27 17.23 54 5.47N 164 3.77W 21.6 3.4 0.30 3.66 9.99 237 14 10 54 C E UNIMAK IS. 98 12 17 13 38 10.23 60 4.82N 152 56.47W 101.7 2.1 0.14 2.34 3.08 62 14 11 1 B E COOK INLET. 98 12 17 14 47 58.61 60 0.00N 151 51.71W 76.5 2.2 0.22 1.95 2.68 70 17 13 40 B E KENAI PEN. 98 12 17 16 36 46.74 59 27.32N 153 23.96W 121.2 1.8 0.17 2.83 3.31 123 14 10 13 B E COOK INLET. 98 12 17 16 56 21.61 59 10.06N 152 26.20W 71.2 2.6 0.17 1.16 4.53 118 17 11 58 B E COOK INLET. 98 12 17 17 22 5.26 61 59.13N 151 0.71W 62.3 2.1 0.30 1.32 3.44 149 15 7 61 B E COOK INLET. 98 12 17 17 58 43.92 62 23.07N 151 10.10W 87.8 2.2 0.19 3.39 3.29 181 15 9 47 B E CENTRAL AK. 98 12 17 20 28 24.75 59 20.74N 151 39.35W 51.7 2.3 0.19 1.87 2.21 158 16 11 31 A E KENAI PEN. 98 12 17 20 59 42.09 64 32.35N 147 45.08W 14.5 1.3 0.15 0.97 1.24 103 10 6 12 A E CENTRAL AK. 98 12 17 21 41 11.47 60 33.12N 149 15.58W 31.3 2.9 0.26 2.03 2.38 123 16 8 9 A E KENAI PEN. 98 12 17 22 43 50.52 61 28.39N 151 59.43W 4.6 0.9 0.13 2.22 1.09 314 9 7 12 A a COOK INLET. 98 12 18 8 30 14.42 62 8.42N 149 44.95W 56.5 1.9 0.23 2.15 4.05 85 16 8 40 B E CENTRAL AK. 98 12 18 10 48 38.01 60 51.58N 149 47.15W 47.6 0.4 0.10 5.15 11.48 164 6 4 45 D E KENAI PEN. 98 12 18 10 49 7.84 61 16.31N 152 19.61W 0.0 0.1 0.18 1.49 36.27 131 8 5 3 D a COOK INLET. 98 12 18 13 27 44.81 60 7.16N 153 5.89W 119.7 2.5 0.23 3.16 2.99 96 23 13 7 B E COOK INLET. 98 12 18 16 47 51.03 61 58.01N 147 24.01W 36.9 3.5 0.31 1.10 2.14 41 20 10 15 A E PR WILLIAM SOUND. 98 12 18 19 2 10.12 63 16.32N 151 5.11W 9.7 3.0 0.21 1.63 2.40 101 19 9 32 A E CENTRAL AK. 98 12 18 20 47 56.93 59 56.01N 152 37.42W 89.6 2.1 0.28 2.55 2.14 98 18 14 24 B E COOK INLET. 98 12 18 21 29 2.52 63 16.71N 151 0.74W 10.6 1.9 0.23 1.35 1.36 100 17 8 31 A E CENTRAL AK. 98 12 19 2 10 9.49 61 18.70N 151 9.58W 63.8 2.6 0.36 1.60 1.52 75 15 12 17 A E COOK INLET. _____________________________________________________________________________________________________________________________________________________ DATE TIME LATITUDE LONGITUDE DEPTH PREF. RMS SEH SEZ GAP PHASES MIN Q T REGION, OTHER MAGNITUDES, FELT REPORTS AND COMMENTS YR MO DY HR MN SEC DEG MIN DEG MIN KM MAG SEC. KM KM DEG P S DIS _____________________________________________________________________________________________________________________________________________________ 98 12 19 3 44 28.39 60 38.61N 141 43.61W 13.4 2.5 0.37 1.54 3.48 92 15 10 42 B E YAKUTAT BAY. 98 12 19 4 58 22.47 61 32.84N 146 39.55W 13.7 1.1 0.24 1.70 3.73 76 14 6 40 B E PR WILLIAM SOUND. 98 12 19 6 11 49.89 62 14.15N 151 31.10W 84.1 3.1 0.27 1.62 4.99 90 15 8 67 B E CENTRAL AK. 98 12 19 7 15 19.64 62 7.27N 148 10.74W 40.1 1.6 0.28 1.77 3.86 94 15 9 36 B E CENTRAL AK. 98 12 19 7 57 17.98 62 0.78N 149 53.51W 46.5 1.8 0.35 2.70 4.49 150 16 10 40 B E CENTRAL AK. 98 12 19 11 39 23.54 60 32.21N 151 24.51W 54.5 2.5 0.21 1.28 3.69 69 19 11 25 B E KENAI PEN. 98 12 19 20 27 58.63 58 9.99N 155 21.05W 2.9 1.0 0.12 0.66 2.03 122 10 8 5 A a ALASKA PEN. 98 12 20 0 13 57.60 60 25.90N 148 12.13W 15.0 1.6 0.18 1.11 4.62 120 15 9 48 B E KENAI PEN. 98 12 20 2 15 32.61 64 9.71N 148 14.46W 0.0 1.4 0.33 2.79 55.51 134 12 5 35 D E CENTRAL AK. 98 12 20 2 51 20.19 61 22.61N 147 5.87W 18.8 1.6 0.22 0.68 1.52 91 16 8 42 A PR WILLIAM SOUND. 98 12 20 4 57 40.61 63 8.63N 150 24.22W 120.0 1.9 0.13 2.77 3.49 155 15 7 35 B E CENTRAL AK. 98 12 20 10 18 34.22 60 31.29N 152 43.58W 4.7 -0.2 0.04 1.37 1.98 127 8 6 1 A a COOK INLET. 98 12 20 11 3 17.40 61 58.25N 149 49.95W 40.2 1.7 0.26 2.43 3.91 97 17 10 36 B E COOK INLET. 98 12 20 11 52 35.58 60 5.59N 151 3.47W 56.1 2.8 0.39 1.19 3.98 101 21 17 14 B E KENAI PEN. 98 12 20 12 23 57.48 54 1.86N 168 8.52W 118.0 4.0mb R FOX ISLS. 98 12 20 12 23 57.48 54 1.86N 168 8.52W 118.0 4.0mb R FOX ISLS. 98 12 20 14 43 9.23 60 54.44N 150 51.79W 20.2 2.4 0.45 0.93 2.61 52 20 9 25 B E KENAI PEN. 98 12 20 16 46 35.94 62 4.31N 153 13.31W 0.0 2.8 0.26 4.55 4.91 74 19 12 93 B E CENTRAL AK. 98 12 20 19 25 27.53 60 0.79N 152 46.57W 93.8 1.9 0.22 2.87 3.15 91 19 16 13 B E COOK INLET. 98 12 20 20 20 9.03 60 32.39N 152 3.24W 80.4 2.1 0.24 2.19 2.26 61 20 18 20 A E COOK INLET. 98 12 20 20 34 22.01 60 4.54N 152 27.48W 83.8 2.3 0.30 1.94 2.49 73 17 15 28 A E COOK INLET. 98 12 20 21 0 5.17 61 53.42N 150 19.87W 15.1 1.8 0.56 2.74 9.59 122 15 11 106 C E COOK INLET.