Issued: December 16, 1997 Prepared by: Nan Macgregor-Scott No. 50 - 97 The following is a list of significant earthquakes during the time period December 8 - 14, 1997 December 10 at 08:35 UTC (11:35 pm AST), ML 3.6, 53 N 46', 163 W 48', depth = 25 km (15 mi): A minor earthquake was located in the Unimak Island region of Alaska about 77 mi (124 km) SSW of False Pass 84 mi (136 km) ESE of Akutan 108 mi (174 km) SSW of Cold Bay 108 mi (174 km) SW of King Cove 112 mi (180 km) E of Dutch Harbor December 10 at 11:12 UTC (02:12 am AST), mb 5.0, 50 N 58', 179 W 26', depth fixed at 33 km (21 mi): A moderate earthquake was located by NEIC in the Andreanof Islands region of Alaska about 79 mi (127 km) ESE of Amchitka 135 mi (218 km) WSW of Adak 222 mi (356 km) ESE of Buldir Is 241 mi (387 km) WSW of Atka 302 mi (485 km) ESE of Shemya Is December 12 at 10:27 UTC (01:27 am AST), ML 4.0, 61 N 15', 150 W 51', depth = 61 km (38 mi): A light earthquake, felt in the Anchorage area, was located in the Cook Inlet region of Alaska about 16 mi ( 25 km) NE of Tyonek 32 mi ( 52 km) W of Anchorage 36 mi ( 57 km) W of Elmendorf AFB 39 mi ( 63 km) W of Fort Richardson 43 mi ( 70 km) W of Eagle River December 14 at 01:52 UTC (04:52 pm AST), ML 3.5, 58 N 53', 154 W 27', depth = 120 km (74 mi): A minor earthquake, was located in the Alaska Peninsula region of Alaska about 60 mi ( 96 km) SSE of Newhalen 62 mi (100 km) SSE of Iliamna 64 mi (102 km) SSW of Pedro Bay 76 mi (123 km) S of Nondalton 80 mi (129 km) E of King Salmon _____________________________________________________________________________________________________________________________________________________ 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 _____________________________________________________________________________________________________________________________________________________ 97 12 8 9 54 53.73 61 44.26N 147 40.86W 39.9 1.1 0.10 3.75 8.35 137 14 6 21 C E PR WILLIAM SOUND. 97 12 8 10 52 59.15 60 36.69N 152 21.91W 104.5 3.1 0.14 1.65 3.92 87 27 5 17 B E COOK INLET. 97 12 8 11 39 0.26 60 46.31N 149 40.91W 34.3 1.4 0.11 7.08 8.68 96 13 3 36 C E KENAI PEN. 97 12 8 12 33 25.66 63 6.27N 150 48.46W 118.3 1.5 0.38 29.40 20.12 191 9 3 61 D E CENTRAL AK. 97 12 8 12 48 39.23 63 59.27N 149 27.27W 14.6 2.1 0.22 3.82 2.45 80 16 5 21 B E CENTRAL AK. 97 12 8 13 4 19.31 59 6.14N 151 33.97W 39.0 2.3 0.14 4.90 5.28 173 13 5 40 C E KENAI PEN. 97 12 8 14 4 31.40 61 34.52N 146 31.98W 33.8 1.3 0.15 3.51 6.69 73 14 4 34 C E PR WILLIAM SOUND. 97 12 8 15 55 42.94 58 19.07N 142 40.42W 10.0G 2.0 0.25 24.83 40.27 252 14 5 205 D E GULF OF ALASKA. 97 12 8 20 6 38.77 60 13.27N 144 46.29W 17.1 1.6 0.19 6.43 5.23 142 14 8 19 C E CAPE YAKATAGA. 97 12 8 20 18 55.77 58 21.49N 154 49.38W 4.2 1.0 0.17 5.86 72.14 303 7 7 18 D a ALASKA PEN. 97 12 8 22 50 26.57 59 52.02N 148 50.70W 15.4 1.8 0.10 8.52 10.24 185 8 5 43 D E KENAI PEN. 97 12 9 1 19 43.47 64 13.04N 148 7.11W 10.9 1.9 0.36 1.09 2.17 49 16 7 28 A E CENTRAL AK. 97 12 9 2 32 29.96 59 52.62N 152 25.99W 73.4 2.8 0.25 0.81 2.44 46 23 18 36 A E COOK INLET. 97 12 9 4 59 39.08 61 18.06N 152 15.78W 2.2 0.1 0.01 1.62 3.86 284 3 2 4 B a COOK INLET. 97 12 9 4 58 15.39 62 29.75N 150 47.18W 77.1 1.9 0.27 2.38 3.05 78 17 10 29 B E CENTRAL AK. 97 12 9 8 1 34.17 59 54.34N 153 14.29W 0.0 0.6 0.26 11.35 4.75 333 4 4 15 D a COOK INLET. 97 12 9 8 40 34.43 60 58.15N 150 56.30W 11.6 1.8 0.43 0.90 1.80 68 22 13 30 A E KENAI PEN. 97 12 9 10 12 3.22 61 37.75N 147 0.53W 29.9 1.8 0.39 0.65 2.76 44 19 10 28 B E PR WILLIAM SOUND. 97 12 9 12 51 1.99 60 16.08N 150 5.07W 47.0 1.7 0.18 1.87 2.72 101 17 12 40 B E KENAI PEN. 97 12 9 15 11 1.30 61 43.46N 147 41.81W 29.8 1.9 0.40 0.90 2.32 45 21 14 23 A E PR WILLIAM SOUND. 97 12 9 15 38 21.75 61 1.87N 152 16.66W 11.5 1.7 0.21 1.77 2.01 114 15 11 19 A E COOK INLET. 97 12 9 18 33 1.86 59 45.97N 152 42.16W 82.0 2.0 0.29 1.18 2.49 60 20 15 30 A E COOK INLET. 97 12 9 20 3 58.94 62 40.50N 149 36.25W 73.8 2.7 0.28 1.26 2.10 85 18 13 46 A E CENTRAL AK. 97 12 9 21 19 41.75 59 2.31N 154 4.31W 110.9 2.6 0.18 2.49 3.10 98 18 13 22 B E COOK INLET. 97 12 9 23 58 5.83 61 25.77N 150 57.30W 61.7 3.2 0.25 1.00 1.99 52 23 12 58 A E COOK INLET. 97 12 10 0 21 12.18 60 11.79N 141 1.58W 0.0 2.3 0.20 2.08 4.03 115 16 6 16 B E YAKUTAT BAY. 97 12 10 2 30 51.13 54 29.67N 162 29.39W 42.8 3.0 0.15 7.38 9.23 232 14 7 55 C E ALASKA PEN. 97 12 10 8 32 32.25 54 49.81N 161 29.71W 55.8 2.9 0.18 7.36 6.24 219 14 9 43 C E ALASKA PEN. 97 12 10 8 35 57.14 53 45.70N 163 48.15W 24.5 3.6 0.40 17.90 58.75 234 17 7 107 D E UNIMAK IS. 97 12 10 11 12 42.38 50 58.02N 179 25.68W 33.0N 5.0mb R ANDREANOF ISLS. 97 12 10 11 48 46.81 61 18.77N 146 32.98W 4.0 1.2 0.10 2.41 6.38 73 11 4 23 C E PR WILLIAM SOUND. 97 12 10 14 56 31.68 59 29.51N 152 43.26W 80.1 2.1 0.17 5.34 7.92 75 14 6 34 C E COOK INLET. 97 12 10 15 1 7.83 60 14.99N 147 7.34W 15.0 2.1 0.15 4.97 11.71 86 15 8 38 D E PR WILLIAM SOUND. 97 12 10 15 47 52.11 60 59.66N 147 11.03W 28.0 0.7 0.09 5.31 5.52 98 9 3 14 C E PR WILLIAM SOUND. 97 12 10 20 0 49.28 61 33.82N 146 38.36W 23.0 1.5 0.17 2.62 6.78 72 15 6 39 C E PR WILLIAM SOUND. 97 12 10 20 29 12.87 61 23.05N 147 9.41W 29.5 1.6 0.15 1.99 11.95 51 17 10 40 D E PR WILLIAM SOUND. 97 12 11 3 10 56.53 64 42.61N 147 2.83W 12.9 0.9 0.08 4.19 7.55 112 5 2 34 C E CENTRAL AK. 97 12 11 4 36 3.02 61 18.36N 146 25.43W 21.1 1.8 0.32 1.13 1.85 71 14 12 20 A E PR WILLIAM SOUND. 97 12 11 8 36 0.44 63 7.37N 150 28.45W 113.8 2.4 0.27 1.88 3.26 89 20 11 45 B E CENTRAL AK. 97 12 11 9 28 53.96 63 7.07N 150 58.84W 122.3 2.7 0.26 5.83 5.51 95 18 10 70 C E CENTRAL AK. 97 12 11 14 31 53.29 63 43.52N 146 53.87W 15.2 2.0 0.26 0.93 1.32 82 14 7 52 A E CENTRAL AK. 97 12 11 17 39 16.82 61 42.77N 147 15.27W 28.9 1.6 0.44 1.26 2.40 49 16 6 14 A E PR WILLIAM SOUND. 97 12 11 20 57 47.68 59 42.83N 152 15.26W 70.4 1.6 0.21 3.43 5.25 144 14 10 35 C E COOK INLET. 97 12 11 22 10 34.33 58 59.04N 154 20.47W 110.7 2.7 0.19 2.04 2.69 132 23 15 41 B E ALASKA PEN. 97 12 11 22 11 9.78 62 18.68N 149 22.08W 0.0 1.1 0.24 3.79 3.82 112 9 3 48 B E CENTRAL AK. 97 12 11 22 50 1.89 62 55.54N 151 6.29W 134.7 3.4 0.24 2.13 4.78 68 19 11 72 B E CENTRAL AK. 97 12 12 0 15 55.71 62 50.81N 148 11.90W 51.1 2.5 0.14 2.34 6.50 67 15 5 49 C E CENTRAL AK. 97 12 12 0 46 16.08 62 13.53N 149 44.48W 44.8 2.5 0.20 3.32 7.88 47 16 5 34 C E CENTRAL AK. 97 12 12 0 52 15.46 62 4.67N 150 47.33W 4.0 2.1 0.49 4.50 8.22 74 14 4 45 C E CENTRAL AK. 97 12 12 1 40 44.05 61 1.86N 150 11.01W 38.6 1.7 0.18 4.29 12.32 85 13 5 41 D 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 _____________________________________________________________________________________________________________________________________________________ 97 12 12 7 28 51.63 60 2.09N 153 3.75W 0.0 0.3 0.06 0.68 2.94 105 6 5 3 B a COOK INLET. 97 12 12 9 58 6.51 59 43.33N 153 4.09W 99.1 2.5 0.09 4.94 5.30 58 13 6 12 C E COOK INLET. 97 12 12 10 27 45.57 61 14.84N 150 51.29W 61.3 4.0 0.21 1.19 2.50 78 16 7 60 A R COOK INLET. 97 12 12 10 32 50.93 66 7.72N 149 16.73W 0.0 2.4 0.51 8.35 8.38 143 14 4 139 C E N CENTRAL AK. 97 12 12 10 47 46.89 61 51.14N 150 37.85W 69.3 1.5 0.34 7.12 23.74 145 10 4 46 D E COOK INLET. 97 12 12 11 53 10.36 60 30.30N 148 20.37W 6.7 1.4 0.22 2.39 2.77 82 13 8 39 B E KENAI PEN. 97 12 12 14 39 39.55 61 58.67N 149 35.99W 47.7 1.6 0.10 7.41 7.22 122 10 3 39 C E COOK INLET. 97 12 12 15 58 44.76 62 49.25N 149 29.18W 70.9 2.6 0.24 3.35 8.16 62 15 4 19 C E CENTRAL AK. 97 12 12 16 23 21.44 61 40.97N 150 51.66W 49.8 1.8 0.16 3.53 10.57 82 9 5 52 D E COOK INLET. 97 12 12 16 23 14.12 64 34.68N 148 45.56W 18.0 0.7 0.17 4.56 4.98 121 7 4 15 B E CENTRAL AK. 97 12 12 18 50 26.45 53 5.14N 162 13.82W 38.8 3.1 0.31 34.93 98.01 272 17 5 209 D E SOUTH OF AK. 97 12 12 18 54 16.25 61 56.76N 151 16.44W 80.1 1.8 0.37 8.38 12.95 96 11 3 73 D E COOK INLET. 97 12 12 18 58 56.26 60 4.71N 147 38.42W 19.4 1.5 0.11 5.12 2.34 116 14 7 13 C E PR WILLIAM SOUND. 97 12 12 21 17 39.89 61 16.03N 152 13.26W 112.0 2.1 0.14 6.97 7.80 84 12 5 1 C E COOK INLET. 97 12 12 21 42 55.34 60 37.31N 145 10.88W 12.4 1.8 0.16 4.43 2.53 63 13 8 10 B E PR WILLIAM SOUND. 97 12 12 22 17 11.44 60 7.27N 152 47.11W 108.9 2.8 0.19 5.57 6.67 61 15 5 11 C E COOK INLET. 97 12 12 22 18 31.70 54 46.00N 161 7.34W 72.2 2.5 0.17 8.29 9.29 218 12 6 64 C E ALASKA PEN. 97 12 12 23 23 9.65 59 10.22N 148 16.21W 0.0 2.6 0.32 16.20 21.63 206 14 4 100 D E KENAI PEN. 97 12 12 23 48 58.04 60 24.98N 147 50.32W 9.7 1.3 0.10 2.19 5.86 90 13 7 42 C E PR WILLIAM SOUND. 97 12 13 3 49 26.69 55 8.61N 162 12.46W 2.7 1.6 0.15 0.74 1.33 102 10 6 3 A a ALASKA PEN. 97 12 13 4 59 48.70 60 8.02N 152 53.75W 108.5 2.1 0.27 2.55 2.98 115 22 14 7 B E COOK INLET. 97 12 13 6 26 30.02 62 0.24N 149 34.46W 39.4 1.4 0.25 2.25 3.96 124 13 7 43 B E CENTRAL AK. 97 12 13 9 33 52.90 63 4.32N 148 17.75W 69.1 2.2 0.37 1.90 3.15 62 15 10 47 B E CENTRAL AK. 97 12 13 12 35 35.48 66 5.91N 148 24.46W 31.3 2.7 0.43 3.79 10.71 135 15 5 127 D E N CENTRAL AK. 97 12 13 13 50 23.92 64 27.78N 149 26.99W 14.7 1.9 0.28 0.90 1.63 122 15 8 22 A E CENTRAL AK. 97 12 13 15 51 17.91 61 46.34N 150 31.04W 42.0 2.5 0.37 0.99 2.80 74 17 13 36 B E COOK INLET. 97 12 13 16 10 20.03 63 14.56N 150 55.10W 7.1 2.3 0.34 3.74 3.84 191 17 11 71 B E CENTRAL AK. 97 12 13 16 11 41.21 63 12.35N 150 49.09W 18.5 2.5 0.23 2.06 1.71 96 18 10 65 A E CENTRAL AK. 97 12 13 17 38 11.78 63 22.80N 149 15.19W 9.8 2.4 0.25 1.15 1.43 75 19 12 20 A E CENTRAL AK. 97 12 13 18 9 56.79 63 0.38N 151 1.35W 127.8 2.4 0.32 3.42 5.99 70 18 9 70 C E CENTRAL AK. 97 12 13 18 42 40.05 62 14.32N 150 8.52W 13.4 1.1 0.16 55.24 82.24 212 3 3 20 D E CENTRAL AK. 97 12 13 21 19 3.08 58 58.85N 144 34.45W 10.0G 2.4 0.29 10.41 20.54 243 15 5 106 D E GULF OF ALASKA. 97 12 13 22 5 28.07 62 11.92N 148 49.08W 18.5 1.3 0.21 1.30 2.66 94 13 8 48 B E CENTRAL AK. 97 12 13 22 10 45.55 60 8.17N 153 6.29W 130.6 2.8 0.27 1.81 2.27 116 22 17 9 A E COOK INLET. 97 12 14 1 52 37.06 58 53.23N 154 27.43W 119.8 3.5 0.26 2.58 3.85 109 14 6 34 B E ALASKA PEN. 97 12 14 9 15 3.54 62 54.01N 148 36.30W 10.0 2.2 0.25 2.43 4.12 84 13 5 53 B E CENTRAL AK. 97 12 14 11 8 56.55 63 15.43N 150 33.84W 124.8 2.4 0.15 2.84 8.75 94 13 5 56 C E CENTRAL AK. 97 12 14 13 0 5.12 62 18.62N 148 8.04W 30.7 2.7 0.12 1.56 8.92 70 11 5 57 C E CENTRAL AK. 97 12 14 13 56 37.90 65 14.71N 148 31.33W 16.3 2.1 0.37 6.85 5.27 242 7 5 35 C E N CENTRAL AK.