ssued: January 25, 1999 Prepared by: Nan Macgregor-Scott No. 04 - 99 The following is a list of significant earthquakes during the time period January 18 - 24, 1999 January 18 at 01:05 UTC (04:05 pm AST), mb 4.5, 52 N 14Õ, 174 W 30Õ, depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 13 mi ( 21 km) WNW of Atka 95 mi (153 km) ENE of Adak 107 mi (172 km) W of Amukta Pass 243 mi (390 km) W of Nikolski 282 mi (454 km) ENE of Amchitka January 18 at 22:24 UTC (01:24 pm AST), mb 4.1, 51 N 51Õ, 174 W 5Õ, depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 25 mi ( 40 km) SSE of Atka 95 mi (154 km) WSW of Amukta Pass 110 mi (178 km) E of Adak 233 mi (375 km) WSW of Nikolski 298 mi (480 km) E of Amchitka January 19 at 01:24 UTC (04:24 pm AST), mb 4.2, 50 N 35Õ, 173 W 40Õ, depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 113 mi (182 km) SSE of Atka 142 mi (228 km) SSW of Amukta Pass 157 mi (253 km) ESE of Adak 263 mi (423 km) SW of Nikolski 326 mi (525 km) E of Amchitka January 20 at 05:59 UTC (08:59 pm AST), mb 4.4, 52 N 46Õ, 174 E 18Õ, depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Near Islands region of Alaska about 9 mi ( 14 km) ENE of Shemya Is 46 mi ( 74 km) ESE of Attu 75 mi (120 km) WNW of Buldir Is 218 mi (351 km) WNW of Amchitka 368 mi (593 km) ESE of Bering Is, Komandorsky January 20 at 07:38 UTC (10:38 pm AST), mb 4.7, 52 N 10Õ, 179 E 43Õ, depth = 172 km (107 mi): A light earthquake was located by NEIC in the Rat Islands region of Alaska about 54 mi ( 87 km) NE of Amchitka 156 mi (251 km) W of Adak 162 mi (260 km) E of Buldir Is 240 mi (386 km) E of Shemya Is 259 mi (416 km) W of Atka January 20 at 18:20 UTC (09:20 am AST), ML 4.2, 60 N 16Õ, 152 W 13Õ, depth = 77 km (48 mi): A light earthquake, felt in Homer, was located in the Cook Inlet region of Alaska about 25 mi ( 40 km) NW of Ninilchik 29 mi ( 47 km) W of Clam Gulch 33 mi ( 53 km) W of Kasilof 37 mi ( 60 km) NNW of Anchor Point 38 mi ( 62 km) WSW of Kenai January 21 at 00:50 UTC (03:50 pm AST), ML 4.3, 54 N 44Õ, 160 W 42Õ, depth = 16 km (10 mi): A light earthquake, felt in Sand Point, was located in the Alaska Peninsula region of Alaska about 43 mi ( 69 km) S of Sand Point 68 mi (110 km) ESE of King Cove 87 mi (140 km) ESE of Cold Bay 90 mi (146 km) SSE of Nelson Lagoon 102 mi (164 km) SW of Perryville January 24 at 03:18 UTC (06:18 pm AST), ML 3.6, 60 N 19Õ, 152 W 28Õ, depth = 90 km (56 mi): A minor earthquake was located in the Cook Inlet region of Alaska about 34 mi ( 54 km) NW of Ninilchik 38 mi ( 61 km) W of Clam Gulch 41 mi ( 66 km) W of Kasilof 44 mi ( 71 km) NNW of Anchor Point 45 mi ( 72 km) WSW of Kenai _____________________________________________________________________________________________________________________________________________________ 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 _____________________________________________________________________________________________________________________________________________________ 99 1 18 1 5 18.95 52 13.80N 174 30.18W 33.0N 4.5mb R ANDREANOF ISLS. 99 1 18 2 48 42.43 61 36.09N 150 37.32W 52.3 2.1 0.41 6.18 14.20 72 15 4 40 D E COOK INLET. 99 1 18 3 25 35.37 63 4.26N 149 25.35W 78.5 2.3 0.15 2.23 4.41 63 16 5 15 B E CENTRAL AK. 99 1 18 5 24 8.17 60 38.76N 151 7.81W 45.7 1.6 0.12 2.68 9.40 73 12 5 12 C E KENAI PEN. 99 1 18 7 17 54.13 61 49.11N 149 34.36W 36.9 1.7 0.08 4.16 7.09 88 12 5 25 C E COOK INLET. 99 1 18 13 16 30.58 53 38.02N 164 40.95W 33.3 3.3 0.10 11.72 86.69 217 23 4 85 D E UNIMAK IS. 99 1 18 22 10 51.66 61 12.25N 147 22.54W 33.8 1.0 0.10 5.47 7.85 65 12 6 21 C E PR WILLIAM SOUND. 99 1 18 22 24 16.75 51 50.64N 174 4.86W 33.0N 4.1mb R ANDREANOF ISLS. 99 1 18 23 38 45.02 61 12.34N 147 3.51W 30.3 1.4 0.10 1.37 5.67 61 15 5 30 C E PR WILLIAM SOUND. 99 1 19 0 15 34.54 63 28.27N 150 56.43W 3.8 2.7 0.44 5.70 6.05 161 14 13 86 C E CENTRAL AK. 99 1 19 0 21 40.54 60 21.27N 150 51.38W 51.5 1.5 0.33 1.89 3.58 103 15 9 39 B E KENAI PEN. 99 1 19 1 24 2.30 50 35.28N 173 40.32W 33.0N 4.2mb R ANDREANOF ISLS. 99 1 19 11 0 40.44 61 17.98N 148 26.82W 18.5 0.8 0.11 4.20 2.86 92 8 2 13 B E PR WILLIAM SOUND. 99 1 19 11 55 37.40 63 15.45N 150 41.00W 132.1 2.5 0.20 3.93 4.07 158 15 9 29 B E CENTRAL AK. 99 1 19 12 23 37.07 60 12.97N 152 24.51W 93.9 1.8 0.18 3.85 4.13 56 15 8 34 B E COOK INLET. 99 1 19 14 9 45.72 61 22.00N 151 45.18W 21.7 1.6 0.23 2.07 2.10 112 15 7 15 A E COOK INLET. 99 1 19 14 34 30.24 61 34.51N 148 1.90W 3.1 2.1 0.38 0.62 1.75 83 18 10 29 A E PR WILLIAM SOUND. 99 1 19 15 59 39.20 60 19.09N 147 46.69W 10.2 0.9 0.17 1.73 4.87 105 9 5 31 B E PR WILLIAM SOUND. 99 1 19 17 3 11.98 60 24.72N 152 25.38W 155.8 2.1 0.54 10.48 7.58 230 12 11 88 D E COOK INLET. 99 1 19 17 37 19.16 61 48.43N 149 25.76W 14.5 0.9 0.27 2.10 1.55 121 10 6 27 A E COOK INLET. 99 1 19 17 52 16.50 59 59.78N 147 58.79W 17.4 1.7 0.18 3.86 0.82 221 10 4 9 B E GULF OF ALASKA. 99 1 19 17 52 16.57 60 2.34N 147 54.17W 8.1 1.5 0.27 6.67 8.83 214 15 6 87 C E PR WILLIAM SOUND. 99 1 19 18 28 18.50 59 46.70N 152 58.71W 104.2 2.3 0.24 1.63 3.01 75 14 12 20 B E COOK INLET. 99 1 19 18 28 18.27 59 45.91N 152 59.50W 106.1 2.0 0.12 3.21 3.36 103 13 11 18 B E COOK INLET. 99 1 19 19 14 10.91 57 44.01N 154 18.39W 9.1 2.4 0.26 3.33 5.55 161 15 7 59 C E KODIAK IS REG. 99 1 19 19 27 24.99 59 38.97N 151 53.53W 16.4 0.8 0.43 8.13 28.62 161 5 6 40 D E KENAI PEN. 99 1 19 20 42 4.44 61 23.80N 147 33.83W 28.6 1.1 0.16 2.01 7.56 68 19 9 26 C E PR WILLIAM SOUND. 99 1 19 21 45 57.03 61 14.61N 146 49.49W 21.5 1.5 0.34 1.13 3.32 42 19 7 24 B E PR WILLIAM SOUND. 99 1 19 23 55 14.15 60 40.81N 147 21.33W 2.4 1.8 0.42 1.12 1.72 78 18 11 26 A E PR WILLIAM SOUND. 99 1 20 0 22 9.42 60 3.43N 152 54.28W 109.8 1.6 0.14 9.74 11.35 63 14 3 4 D E COOK INLET. 99 1 20 0 42 28.89 60 58.54N 151 46.42W 71.4 1.8 0.33 6.50 12.04 49 14 3 27 D E KENAI PEN. 99 1 20 3 14 50.15 63 7.28N 150 44.40W 116.3 1.9 0.09 11.66 12.99 70 11 4 43 D E CENTRAL AK. 99 1 20 3 20 25.85 53 40.87N 166 48.85W 5.1 1.6 0.21 10.45 15.02 276 10 3 13 D a FOX ISLS. 99 1 20 5 59 33.08 52 46.26N 174 17.82E 33.0N 4.4mb R NEAR ISLS. 99 1 20 7 38 34.58 52 10.20N 179 43.26E 171.7 4.7mb R RAT ISLS. 99 1 20 10 46 47.59 62 53.55N 148 44.46W 72.1 2.8 0.16 1.15 4.12 46 17 5 46 B E CENTRAL AK. 99 1 20 13 13 25.26 63 30.55N 147 14.95W 10.2 3.4 0.20 0.86 1.20 75 16 4 49 A E CENTRAL AK. 99 1 20 15 42 15.10 60 57.11N 147 0.43W 28.0 0.9 0.08 3.09 4.99 67 12 4 9 B E PR WILLIAM SOUND. 99 1 20 15 44 19.90 61 39.91N 149 31.35W 34.6 1.8 0.19 2.37 3.20 70 18 4 19 B E COOK INLET. 99 1 20 15 52 12.55 55 5.57N 161 1.44W 82.9 2.5 0.20 7.57 9.53 153 16 5 43 C E ALASKA PEN. 99 1 20 15 58 54.24 61 39.31N 149 27.78W 37.0 1.3 0.15 6.65 8.76 65 13 4 19 C E COOK INLET. 99 1 20 18 5 31.17 61 17.82N 146 53.42W 33.0 1.2 0.07 3.94 10.99 88 11 3 31 D E PR WILLIAM SOUND. 99 1 20 18 20 7.97 60 16.36N 152 13.37W 77.3 4.2 0.24 0.89 2.01 61 20 7 36 A E COOK INLET. 99 1 20 19 52 5.41 59 11.15N 152 54.07W 70.8 2.6 0.23 1.56 3.35 88 21 5 34 B E COOK INLET. 99 1 20 20 27 29.17 61 30.77N 151 43.20W 84.8 1.6 0.09 7.26 8.50 90 11 3 26 C E COOK INLET. 99 1 20 20 30 26.88 60 4.84N 149 17.36W 2.5 1.5 0.30 4.70 6.31 129 16 3 46 C E KENAI PEN. 99 1 20 23 12 33.32 61 29.89N 146 32.56W 23.1 1.4 0.09 2.11 9.04 72 15 5 33 C E PR WILLIAM SOUND. 99 1 20 23 35 23.02 61 22.80N 146 59.24W 24.5 1.4 0.09 1.32 3.29 68 13 9 42 B E PR WILLIAM SOUND. 99 1 21 0 46 55.85 61 11.34N 151 45.29W 74.6 2.3 0.26 3.13 2.67 75 19 12 16 B E COOK INLET. 99 1 21 0 50 32.73 54 43.68N 160 41.52W 15.6 4.3 0.20 2.20 4.24 217 16 7 45 B E ALASKA PEN. _____________________________________________________________________________________________________________________________________________________ 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 _____________________________________________________________________________________________________________________________________________________ 99 1 21 2 29 41.56 61 36.47N 150 3.55W 29.9 3.4 0.54 0.92 1.44 55 19 11 11 A E COOK INLET. 99 1 21 2 54 45.38 60 15.98N 151 8.15W 46.6 1.9 0.22 2.23 3.61 91 15 10 26 B E KENAI PEN. 99 1 21 3 24 4.70 61 23.99N 147 30.61W 30.0 2.0 0.35 0.75 2.97 55 20 10 28 B E PR WILLIAM SOUND. 99 1 21 3 40 22.92 59 55.32N 152 28.22W 95.0 2.4 0.25 1.42 1.82 56 18 16 32 A E COOK INLET. 99 1 21 3 58 38.48 60 38.45N 149 51.99W 21.7 1.8 0.18 1.47 3.87 110 16 8 69 B E KENAI PEN. 99 1 21 9 46 22.52 62 47.54N 148 37.78W 58.5 2.2 0.19 1.32 4.57 49 16 11 55 B E CENTRAL AK. 99 1 21 12 26 22.45 61 38.70N 149 59.78W 35.2 1.4 0.27 1.42 1.68 99 15 10 6 A E COOK INLET. 99 1 21 15 9 15.56 53 42.58N 167 23.24W 6.3 2.3 0.30 6.35 1.90 336 15 6 31 C E FOX ISLS. 99 1 21 17 33 5.40 62 55.67N 148 14.03W 77.0 3.2 0.22 1.28 3.58 64 15 7 71 B E CENTRAL AK. 99 1 21 18 45 0.40 63 14.65N 151 0.37W 12.7 2.5 0.42 2.58 1.66 74 20 12 43 B E CENTRAL AK. 99 1 21 19 18 33.84 63 29.89N 149 59.95W 117.2 2.8 0.21 2.48 4.02 88 16 7 15 B E CENTRAL AK. 99 1 21 19 31 24.44 61 17.78N 146 47.37W 22.9 2.3 0.33 0.74 1.51 49 15 9 29 A E PR WILLIAM SOUND. 99 1 21 19 42 52.93 61 17.08N 146 48.23W 14.9 1.9 0.36 0.58 3.88 44 19 12 28 B E PR WILLIAM SOUND. 99 1 21 21 38 56.43 62 2.90N 149 46.98W 43.8 2.2 0.24 2.06 7.28 89 16 12 47 C E CENTRAL AK. 99 1 21 22 6 45.04 59 18.95N 152 32.33W 69.9 2.6 0.22 1.09 3.21 102 23 16 51 B E COOK INLET. 99 1 22 0 37 24.52 61 49.82N 150 55.74W 7.9 1.9 0.40 4.35 12.27 90 15 4 59 D E COOK INLET. 99 1 22 3 12 22.11 59 2.84N 152 16.47W 67.0 2.7 0.14 1.95 7.80 105 21 5 49 C E COOK INLET. 99 1 22 8 10 55.68 59 32.40N 150 11.66W 35.1 1.8 0.08 5.68 6.76 166 16 5 46 C E KENAI PEN. 99 1 22 10 20 20.98 60 38.87N 152 10.69W 83.4 1.3 0.24 6.45 12.21 56 13 4 18 D E COOK INLET. 99 1 22 12 9 14.93 60 12.47N 152 50.60W 92.7 1.9 0.18 11.57 11.25 100 10 3 16 D E COOK INLET. 99 1 22 12 29 26.54 58 13.97N 151 49.03W 28.8 2.3 0.17 8.20 11.56 152 15 4 54 D E KODIAK IS REG. 99 1 22 14 55 9.74 60 30.52N 143 34.34W 0.5 1.9 0.11 2.18 4.91 84 16 6 42 B E CAPE YAKATAGA. 99 1 22 15 45 47.62 60 37.86N 151 49.47W 74.8 1.4 0.07 6.05 7.99 71 13 3 34 C E KENAI PEN. 99 1 22 16 34 22.57 61 44.40N 151 29.69W 59.8 1.8 0.38 4.79 14.11 47 14 4 51 D E COOK INLET. 99 1 22 18 21 47.43 61 20.70N 151 25.59W 69.7 1.8 0.27 6.50 11.78 78 11 4 38 D E COOK INLET. 99 1 22 18 33 22.31 62 21.27N 149 5.98W 44.8 1.8 0.18 3.80 13.69 68 14 3 61 D E CENTRAL AK. 99 1 23 0 20 3.03 61 0.24N 146 48.07W 18.1 2.1 0.48 1.33 1.38 57 15 5 12 A E PR WILLIAM SOUND. 99 1 23 9 38 44.20 60 51.58N 148 10.19W 29.6 2.4 0.21 1.28 1.76 70 14 10 9 A E KENAI PEN. 99 1 23 21 44 37.13 60 20.00N 147 17.41W 12.4 2.3 0.18 3.13 4.12 119 14 10 44 B E PR WILLIAM SOUND. 99 1 24 3 18 27.98 60 19.44N 152 28.21W 89.9 3.6 0.27 1.20 2.02 64 31 9 20 A E COOK INLET. 99 1 24 3 39 13.50 60 37.35N 152 0.49W 71.7 1.3 0.19 7.10 16.61 81 15 3 41 D E COOK INLET. 99 1 24 5 6 53.59 60 9.65N 147 22.32W 3.6 3.3 0.25 1.40 2.50 99 16 12 30 A E PR WILLIAM SOUND. 99 1 24 5 37 22.65 61 29.02N 147 19.43W 28.3 0.9 0.09 1.38 6.05 55 12 5 39 C E PR WILLIAM SOUND. 99 1 24 7 24 31.01 60 14.47N 152 56.00W 101.7 1.9 0.17 3.67 6.29 80 13 3 18 C E COOK INLET. 99 1 24 7 50 7.94 60 8.15N 152 12.57W 76.7 2.6 0.19 1.41 3.26 54 35 8 42 B E COOK INLET. 99 1 24 7 54 32.68 63 7.30N 150 37.76W 118.6 1.9 0.13 5.67 8.09 69 13 4 41 C E CENTRAL AK. 99 1 24 7 57 23.88 61 22.99N 151 47.36W 81.2 1.8 0.20 5.69 6.62 85 13 4 14 C E COOK INLET. 99 1 24 11 48 15.13 61 15.28N 149 37.77W 32.9 1.7 0.17 2.21 2.39 65 18 4 4 A E COOK INLET. 99 1 24 14 5 3.83 57 41.29N 154 58.14W 60.4 2.4 0.17 6.49 6.48 233 14 7 49 C E KODIAK IS REG. 99 1 24 14 32 44.94 60 48.53N 149 54.04W 15.0 1.4 0.17 1.62 10.83 66 13 4 36 D E KENAI PEN. 99 1 24 15 1 40.97 60 59.71N 147 15.47W 27.1 1.3 0.11 2.80 3.19 50 13 5 16 B E PR WILLIAM SOUND. 99 1 24 16 38 28.13 59 2.16N 153 50.77W 120.6 2.2 0.14 6.60 5.29 111 14 4 17 C E COOK INLET. 99 1 24 17 12 33.08 62 9.39N 148 38.55W 37.2 1.4 0.09 9.73 22.27 120 7 2 42 D E CENTRAL AK. 99 1 24 17 27 53.49 61 8.74N 149 45.85W 34.1 2.0 0.17 2.54 4.93 54 25 5 5 B E COOK INLET. 99 1 24 17 34 15.48 61 29.42N 147 30.92W 31.7 2.1 0.17 1.12 3.07 65 20 5 37 B E PR WILLIAM SOUND. 99 1 24 19 6 20.99 57 53.23N 154 11.68W 49.9 2.7 0.16 4.23 11.47 149 16 3 53 D E KODIAK IS REG. 99 1 24 19 41 12.51 61 56.09N 149 50.88W 39.0 1.5 0.07 6.10 12.05 92 10 3 32 D E COOK INLET. 99 1 24 19 43 41.29 62 45.06N 151 48.06W 15.2 2.4 0.26 5.09 4.94 70 17 4 88 C E CENTRAL AK.