Issued: February 24, 1998 Prepared by: Lalitha Rao No. 07- 98 The following is a list of significant earthquakes during the time period February 16 - 22, 1998 February 16 at 06:09 UTC (Feb.15 , 09:09 pm AST), mb 4.4, 53 N 36', 170 E 3', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Near Islands region of Alaska about 140 mi (226 km) WNW of Attu 180 mi (290 km) WNW of Shemya Is 185 mi (297 km) ESE of Bering Is, Komandorsky 261 mi (419 km) WNW of Buldir Is 404 mi (650 km) WNW of Amchitka February 18 at 15:09 UTC (06:09 am AST), mb 4.5, 51 N 1', 178 W 0', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 83 mi (134 km) SW of Adak 135 mi (217 km) ESE of Amchitka 183 mi (294 km) WSW of Atka 274 mi (441 km) WSW of Amukta Pass 276 mi (445 km) ESE of Buldir Is February 22 at 10:49 UTC (01:49 am AST), ML 5.0, 52 N 60', 168 W 20', depth = 10 km (6 mi): A moderate earthquake was located in the Fox Islands region of Alaska about 23 mi ( 37 km) E of Nikolski 96 mi (154 km) SW of Unalaska 97 mi (156 km) SW of Dutch Harbor 132 mi (212 km) SW of Akutan 161 mi (259 km) ENE 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 2 16 0 42 40.33 63 3.64N 150 54.22W 119.3 2.2 0.11 2.94 5.03 90 20 8 53 C E CENTRAL AK. 98 2 16 1 21 2.36 61 45.35N 149 42.85W 52.3 1.1 0.24 2.88 4.55 106 10 6 15 B E COOK INLET. 98 2 16 3 1 32.57 59 38.42N 152 11.49W 65.2 1.9 0.21 1.30 3.26 61 26 5 31 B E COOK INLET. 98 2 16 3 3 11.04 59 30.19N 152 18.03W 63.2 3.2 0.25 0.72 2.14 85 27 16 36 A E COOK INLET. 98 2 16 3 34 38.58 61 29.65N 148 19.85W 13.5 1.4 0.21 0.68 0.88 54 16 7 11 A E PR WILLIAM SOUND. 98 2 16 6 9 53.62 53 35.76N 170 2.52E 33.0N 4.4mb R NEAR ISLS. 98 2 16 9 21 12.12 62 1.03N 149 7.20W 42.8 2.0 0.19 1.37 3.01 85 16 7 29 B E CENTRAL AK. 98 2 16 9 58 51.49 59 38.58N 152 37.36W 73.7 2.3 0.26 1.23 2.21 106 20 13 34 A E COOK INLET. 98 2 16 12 44 59.10 61 49.71N 149 58.09W 40.8 1.7 0.30 1.04 2.11 94 15 7 20 A E COOK INLET. 98 2 16 17 51 54.74 60 59.17N 146 10.38W 23.6 1.1 0.23 2.71 1.90 152 14 9 18 B E PR WILLIAM SOUND. 98 2 17 1 43 36.45 61 37.36N 146 21.31W 34.3 2.0 0.47 1.32 3.19 57 19 13 27 B E PR WILLIAM SOUND. 98 2 17 3 7 6.45 62 15.86N 150 28.21W 10.2 1.5 0.32 1.83 3.89 80 15 10 19 B E CENTRAL AK. 98 2 17 4 23 53.09 62 7.51N 149 22.49W 47.0 1.5 0.19 3.48 4.87 71 15 7 46 B E CENTRAL AK. 98 2 17 5 39 16.34 60 8.08N 152 48.18W 113.5 2.5 0.25 1.23 2.20 60 26 16 11 A E COOK INLET. 98 2 17 8 35 24.25 60 8.19N 153 57.05W 164.7 2.6 0.21 15.05 6.20 142 18 6 41 D E COOK INLET. 98 2 17 10 22 8.96 60 56.71N 147 47.72W 11.2 1.4 0.39 0.79 1.29 115 17 10 27 A E PR WILLIAM SOUND. 98 2 17 11 22 41.52 60 4.01N 153 13.06W 128.5 2.6 0.25 3.65 3.03 95 24 10 5 B E COOK INLET. 98 2 17 11 33 46.80 57 57.22N 155 20.93W 8.0 1.3 0.12 3.22 2.61 281 8 5 11 B E ALASKA PEN. 98 2 17 14 17 59.69 63 35.40N 150 34.17W 10.9 1.9 0.26 1.60 1.95 100 17 6 18 A E CENTRAL AK. 98 2 17 15 17 45.13 59 32.32N 152 44.38W 74.2 2.4 0.27 1.16 2.67 71 23 17 30 B E COOK INLET. 98 2 17 16 56 8.29 62 9.82N 148 9.09W 15.3 1.4 0.29 0.92 1.80 72 15 13 41 A E CENTRAL AK. 98 2 17 18 38 29.32 61 17.66N 140 26.07W 0.0 2.9 0.50 3.83 2.31 191 14 6 61 B E S YUKON TERR. 98 2 17 19 32 5.95 63 51.96N 150 6.86W 0.0 1.0 0.31 1.92 40.37 118 10 4 47 D E CENTRAL AK. 98 2 17 20 17 28.00 60 55.45N 143 25.84W 7.8 1.0 0.19 4.84 6.87 192 5 4 24 C E CAPE YAKATAGA. 98 2 17 23 31 58.23 63 13.17N 149 3.18W 85.6 2.0 0.24 2.01 2.75 65 17 7 23 B E CENTRAL AK. 98 2 18 0 11 32.77 61 22.70N 146 29.50W 31.8 1.3 0.15 1.87 4.12 77 14 5 29 B E PR WILLIAM SOUND. 98 2 18 1 59 47.84 62 20.59N 150 32.59W 2.1 1.6 0.31 2.32 1.93 120 13 6 16 A E CENTRAL AK. 98 2 18 2 21 33.71 63 4.36N 150 47.29W 112.4 1.9 0.11 3.56 5.74 85 16 5 49 C E CENTRAL AK. 98 2 18 4 9 44.27 59 58.08N 153 5.62W 116.1 2.0 0.20 6.90 5.76 95 18 5 2 C E COOK INLET. 98 2 18 5 37 34.67 60 26.22N 148 27.07W 0.0 1.3 0.47 0.84 2.06 94 14 2 47 A E KENAI PEN. 98 2 18 8 19 2.48 61 2.07N 146 27.09W 17.6 0.9 0.39 1.24 1.01 105 15 8 6 A E PR WILLIAM SOUND. 98 2 18 8 19 54.58 61 28.05N 152 2.89W 6.3 0.7 0.12 10.49 8.93 335 8 6 9 D E COOK INLET. 98 2 18 8 24 8.32 61 32.34N 151 11.47W 8.7 1.9 0.33 0.72 1.49 95 16 10 25 A E COOK INLET. 98 2 18 10 43 8.60 60 47.70N 152 14.69W 103.6 2.2 0.22 2.56 2.33 105 16 10 10 B E COOK INLET. 98 2 18 12 30 25.95 61 54.40N 151 3.66W 65.0 1.7 0.26 1.78 1.99 108 17 13 26 A E COOK INLET. 98 2 18 15 2 5.83 60 28.85N 150 52.47W 66.5 2.1 0.27 0.80 3.43 63 22 15 35 B E KENAI PEN. 98 2 18 15 9 40.38 51 1.20N 178 0.48W 33.0N 4.5mb R ANDREANOF ISLS. 98 2 18 16 33 6.78 55 42.44N 159 46.76W 98.2 2.6 0.22 6.99 6.23 318 12 11 61 C E ALASKA PEN. 98 2 18 22 25 45.34 60 0.77N 152 43.33W 100.0 2.6 0.26 1.32 2.14 68 25 21 15 A E COOK INLET. 98 2 19 3 1 0.70 61 22.99N 146 29.57W 28.5 1.3 0.23 1.19 2.76 77 15 7 29 B E PR WILLIAM SOUND. 98 2 19 6 0 26.46 60 45.75N 148 30.43W 30.5 2.2 0.27 1.00 1.82 60 20 12 14 A E KENAI PEN. 98 2 19 10 19 43.87 62 53.23N 149 36.00W 78.1 2.8 0.23 1.19 2.17 61 18 11 10 A E CENTRAL AK. 98 2 19 10 30 46.86 61 52.27N 149 47.10W 48.6 2.1 0.28 1.06 2.19 87 18 15 25 A E COOK INLET. 98 2 19 11 13 38.54 63 14.98N 150 59.73W 9.9 2.6 0.40 1.47 1.10 99 18 8 34 A E CENTRAL AK. 98 2 19 14 2 1.48 62 17.13N 149 39.74W 61.8 1.8 0.37 2.06 4.74 82 17 11 34 B E CENTRAL AK. 98 2 19 14 58 59.73 62 54.14N 150 18.93W 93.9 2.0 0.22 2.60 2.81 126 17 5 35 B E CENTRAL AK. 98 2 19 16 58 54.24 64 32.49N 147 8.77W 0.0 0.9 0.12 0.85 99.00 121 9 5 18 D E CENTRAL AK. 98 2 19 17 48 38.26 63 4.82N 150 47.73W 121.7 2.6 0.25 2.29 2.45 69 20 10 49 A E CENTRAL AK. 98 2 19 22 20 4.27 63 22.39N 151 6.89W 0.3 1.8 0.26 2.86 4.32 105 16 7 22 B E CENTRAL AK. 98 2 19 23 8 11.96 62 52.34N 150 9.66W 77.3 1.7 0.25 4.77 5.09 147 17 5 29 C E CENTRAL AK. _____________________________________________________________________________________________________________________________________________________ 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 2 20 3 36 18.51 63 14.27N 151 32.56W 5.1 2.2 0.20 2.41 5.04 107 17 9 47 C E CENTRAL AK. 98 2 20 7 50 7.88 63 14.24N 151 35.54W 9.7 3.0 0.26 2.66 3.01 108 23 10 49 B E CENTRAL AK. 98 2 20 12 11 27.99 60 0.59N 151 37.02W 57.6 2.5 0.30 0.84 1.66 52 30 20 19 A E KENAI PEN. 98 2 20 16 1 37.23 61 12.87N 151 41.58W 81.0 2.3 0.22 1.98 3.13 62 20 8 26 B E COOK INLET. 98 2 20 16 41 37.90 62 9.73N 149 41.29W 48.5 2.0 0.26 0.96 2.84 104 14 9 41 B E CENTRAL AK. 98 2 20 17 43 14.42 54 53.89N 162 57.36W 108.9 2.4 0.19 5.73 5.87 161 12 4 35 C E ALASKA PEN. 98 2 20 19 7 24.27 60 7.29N 153 32.59W 150.9 2.2 0.31 4.80 4.74 161 26 6 24 B E COOK INLET. 98 2 20 21 23 29.21 60 10.37N 153 19.11W 123.7 2.9 0.23 2.29 1.54 82 31 20 16 A E COOK INLET. 98 2 20 23 47 42.91 61 32.75N 146 22.23W 30.3 2.1 0.28 1.12 2.02 74 16 12 25 A E PR WILLIAM SOUND. 98 2 21 0 40 9.95 63 14.31N 148 47.44W 84.8 1.8 0.26 2.89 3.83 53 17 9 52 B E CENTRAL AK. 98 2 21 2 20 16.90 63 19.00N 151 38.38W 37.6 2.0 0.34 4.14 4.44 183 13 6 45 B E CENTRAL AK. 98 2 21 3 39 40.81 62 30.55N 151 14.84W 82.8 1.9 0.19 2.71 5.13 164 15 10 52 C E CENTRAL AK. 98 2 21 6 58 50.11 58 29.31N 153 27.92W 57.0 2.9 0.11 1.46 3.98 169 20 14 50 B E KODIAK IS REG. 98 2 21 10 24 27.62 64 38.38N 146 56.21W 0.0 1.7 0.12 0.59 35.59 141 13 7 15 D E CENTRAL AK. 98 2 21 10 33 11.26 62 11.38N 149 30.97W 55.0 1.9 0.30 1.30 1.85 82 16 14 46 A E CENTRAL AK. 98 2 21 10 37 46.95 60 39.68N 156 7.84W 15.4 2.3 0.27 6.40 13.54 201 18 14 57 D E W SOUTHERN AK. 98 2 21 10 48 9.38 59 24.59N 151 8.66W 34.7 2.6 0.29 2.92 2.19 169 19 10 14 B E KENAI PEN. 98 2 21 13 23 47.43 59 51.78N 153 33.36W 152.9 2.4 0.14 10.59 6.41 110 16 5 29 D E COOK INLET. 98 2 21 13 44 57.43 61 29.94N 147 54.80W 29.8 2.1 0.30 0.60 2.22 41 19 13 30 A E PR WILLIAM SOUND. 98 2 21 15 7 58.03 63 35.69N 150 37.81W 14.3 2.9 0.56 0.75 0.80 106 14 7 15 A E CENTRAL AK. 98 2 21 15 23 55.12 60 1.68N 153 27.17W 141.9 2.8 0.23 2.16 2.45 130 20 13 18 A E COOK INLET. 98 2 21 15 37 53.17 60 46.17N 147 22.16W 23.1 1.6 0.26 0.87 1.84 103 17 12 19 A E PR WILLIAM SOUND. 98 2 21 15 58 46.49 63 4.27N 150 25.37W 105.5 2.5 0.23 1.99 2.92 66 15 10 41 B E CENTRAL AK. 98 2 21 20 43 50.80 61 35.60N 151 49.05W 105.8 2.5 0.29 2.70 8.76 98 19 6 99 C E COOK INLET. 98 2 21 20 52 11.67 59 45.40N 152 14.18W 77.9 2.3 0.23 1.57 2.13 76 16 14 35 A E COOK INLET. 98 2 21 20 57 33.49 62 16.16N 146 16.05W 18.9 1.7 0.16 1.50 3.00 79 16 10 19 B E CENTRAL AK. 98 2 21 21 20 23.20 60 38.33N 151 43.05W 72.1 2.0 0.19 1.16 3.03 61 17 11 29 B E KENAI PEN. 98 2 21 23 52 31.78 60 3.55N 153 2.58W 108.0 2.6 0.25 2.02 1.99 70 18 11 1 A E COOK INLET. 98 2 22 0 13 35.53 60 32.25N 150 53.11W 13.1 1.9 0.19 1.28 3.74 68 18 10 30 B E KENAI PEN. 98 2 22 0 34 29.34 63 10.27N 149 46.46W 92.4 1.8 0.26 2.55 3.79 71 16 5 23 B E CENTRAL AK. 98 2 22 3 51 47.28 59 14.62N 152 52.42W 76.4 2.4 0.18 2.94 4.34 88 20 10 32 B E COOK INLET. 98 2 22 6 29 0.15 60 30.81N 150 49.33W 36.5 2.0 0.25 1.26 3.14 62 17 9 34 B E KENAI PEN. 98 2 22 8 59 28.36 62 51.92N 151 17.08W 110.1 2.6 0.16 2.59 4.23 69 19 7 73 B E CENTRAL AK. 98 2 22 9 36 6.46 61 37.81N 141 50.26W 0.0 2.1 0.71 1.62 1.85 159 9 7 72 A E CAPE YAKATAGA. 98 2 22 10 49 5.07 52 59.71N 168 19.85W 10.0G 5.0 0.26 43.51 27.39 207 14 3 130 D E FOX ISLS. 98 2 22 11 35 10.08 63 4.80N 150 57.27W 122.6 2.1 0.16 3.42 4.65 94 16 8 53 B E CENTRAL AK. 98 2 22 12 27 51.54 62 2.67N 149 49.31W 46.4 1.5 0.18 2.97 5.47 94 13 6 44 C E CENTRAL AK. 98 2 22 21 36 35.53 60 25.83N 151 28.94W 51.5 2.3 0.26 1.62 3.93 49 18 12 37 B E KENAI PEN. 98 2 22 22 18 5.83 61 19.33N 146 44.37W 38.4 2.4 0.42 0.69 2.39 68 16 12 30 A E PR WILLIAM SOUND. 98 2 22 23 41 26.96 59 45.24N 150 43.00W 38.2 2.6 0.28 1.57 2.08 169 15 8 10 A E KENAI PEN.