ssued: June 5, 1998 Prepared by: Nan Macgregor-Scott No. 20 - 98 The following is a list of significant earthquakes during the time period May 25 - 31, 1998 May 26 at 01:13 UTC (05:13 pm ADT), mb 4.4, 51 N 36Õ, 178 E 47Õ, depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Rat Islands region of Alaska about 11 mi ( 17 km) WNW of Amchitka 133 mi (213 km) ESE of Buldir Is 197 mi (317 km) W of Adak 213 mi (342 km) ESE of Shemya Is 253 mi (407 km) ESE of Attu May 26 at 04:26 UTC (08:26 pm ADT), ML 3.5, 52 N 25Õ, 169 W 39Õ, depth = 0 km (0 mi): A minor earthquake was located in the Fox Islands region of Alaska about 48 mi ( 78 km) SW of Nikolski 100 mi (161 km) E of Amukta Pass 164 mi (263 km) SW of Unalaska 165 mi (265 km) SW of Dutch Harbor 194 mi (312 km) E of Atka May 26 at 15:31 UTC (07:31 am ADT), ML 3.7, 53 N 26Õ, 165 W 17Õ, depth = 39 km (24 mi): A minor earthquake was located in the Fox Islands region of Alaska about 52 mi ( 84 km) SSE of Akutan 60 mi ( 96 km) ESE of Unalaska 60 mi ( 96 km) ESE of Dutch Harbor 124 mi (199 km) SW of False Pass 153 mi (246 km) ENE of Nikolski May 27 at 17:19 UTC (09:19 am ADT), ML 3.9, 60 N 53Õ, 152 W 53Õ, depth = 151 km (94 mi): A minor earthquake was located in the Cook Inlet region of Alaska about 60 mi ( 97 km) WNW of Kenai 61 mi ( 98 km) WSW of Tyonek 67 mi (107 km) NW of Kasilof 67 mi (108 km) NE of Port Alsworth 68 mi (110 km) WNW of Soldotna May 28 at 07:04 UTC (11:04 pm ADT), ML 4.8, 53 N 17Õ, 166 W 26Õ, depth = 0 km (0 mi): A light earthquake was located in the Fox Islands region of Alaska about 41 mi ( 66 km) S of Unalaska 43 mi ( 68 km) S of Dutch Harbor 65 mi (105 km) SSW of Akutan 104 mi (168 km) ENE of Nikolski 164 mi (264 km) SW of False Pass May 28 at 16:54 UTC (08:54 am ADT), ML 4.8, 53 N 30Õ, 164 W 31Õ, depth = 13 km (8 mi): A light earthquake, felt lightly in Akutan, was located in the Unimak Island region of Alaska about 67 mi (109 km) SE of Akutan 87 mi (139 km) ESE of Dutch Harbor 87 mi (140 km) ESE of Unalaska 104 mi (167 km) SSW of False Pass 137 mi (221 km) SSW of Cold Bay May 30 at 16:03 UTC (08:03 am ADT), ML 4.5, 60 N 16Õ, 152 W 6Õ, depth = 75 km (47 mi): A light earthquake was located in the Cook Inlet region of Alaska about 21 mi ( 34 km) NW of Ninilchik 25 mi ( 40 km) W of Clam Gulch 29 mi ( 46 km) W of Kasilof 35 mi ( 56 km) WSW of Kenai 36 mi ( 58 km) NNW of Anchor Point _____________________________________________________________________________________________________________________________________________________ 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 5 25 0 5 54.34 64 50.86N 147 21.16W 9.9 1.2 0.16 1.10 4.06 117 8 6 16 B E CENTRAL AK. 98 5 25 2 51 49.81 61 19.90N 150 25.65W 47.0 2.0 0.24 2.85 4.39 88 18 11 23 B E COOK INLET. 98 5 25 2 56 12.35 63 16.44N 151 12.09W 4.7 1.8 0.17 2.39 5.65 173 16 5 34 C E CENTRAL AK. 98 5 25 2 57 7.16 63 16.16N 151 4.09W 4.5 2.6 0.34 2.16 3.56 101 16 8 32 B E CENTRAL AK. 98 5 25 3 12 23.21 63 15.17N 151 6.27W 8.8 1.2 0.17 2.27 4.94 170 9 5 35 B E CENTRAL AK. 98 5 25 5 10 13.26 63 14.10N 150 33.79W 125.8 1.9 0.13 5.70 5.74 69 13 6 28 C E CENTRAL AK. 98 5 25 7 41 56.65 58 22.83N 151 14.13W 12.9 1.7 0.60 8.13 14.71 182 12 4 72 D E KODIAK IS REG. 98 5 25 7 47 52.83 63 14.81N 151 3.31W 7.8 2.7 0.19 1.67 3.84 101 17 5 35 B E CENTRAL AK. 98 5 25 7 48 19.94 61 38.20N 150 5.38W 32.3 2.6 0.23 3.29 3.12 178 13 7 11 B E COOK INLET. 98 5 25 9 7 38.06 62 32.79N 151 13.81W 91.0 1.8 0.14 3.98 7.15 86 11 5 52 C E CENTRAL AK. 98 5 25 10 8 9.03 60 21.51N 152 1.02W 75.1 2.3 0.14 1.61 7.51 51 14 5 50 C E COOK INLET. 98 5 25 10 59 43.37 61 9.04N 149 16.73W 40.5 1.3 0.08 2.93 7.00 63 13 6 18 C E COOK INLET. 98 5 25 12 52 9.85 59 59.20N 152 20.15W 68.2 2.4 0.20 2.79 6.61 55 13 5 36 C E COOK INLET. 98 5 25 15 45 11.87 62 4.20N 147 58.98W 35.0 1.7 0.14 4.10 4.34 69 11 8 34 B E CENTRAL AK. 98 5 25 19 0 44.98 59 53.90N 151 7.43W 38.7 2.8 0.11 1.15 2.10 70 10 4 19 A E KENAI PEN. 98 5 25 19 53 28.02 63 14.84N 151 1.17W 5.8 2.1 0.17 3.24 8.48 74 12 3 34 C E CENTRAL AK. 98 5 25 23 43 9.28 61 31.80N 151 32.99W 79.8 2.2 0.21 7.10 11.39 63 13 5 35 D E COOK INLET. 98 5 26 0 42 33.93 60 50.47N 150 35.71W 14.1 1.1 0.20 5.81 11.35 69 9 3 37 D E KENAI PEN. 98 5 26 1 44 18.94 61 25.60N 146 28.78W 14.9 0.8 0.15 3.13 9.34 83 13 6 31 C E PR WILLIAM SOUND. 98 5 26 2 12 6.08 60 15.87N 153 4.19W 124.6 2.2 0.11 8.24 7.44 75 13 3 21 C E COOK INLET. 98 5 26 2 19 2.78 60 21.53N 152 22.69W 84.1 1.7 0.26 7.88 11.61 68 9 4 24 D E COOK INLET. 98 5 26 2 19 18.19 61 23.61N 147 36.14W 25.0 1.1 0.14 1.67 2.75 119 10 7 46 B E PR WILLIAM SOUND. 98 5 26 3 7 51.96 63 15.77N 151 7.25W 5.9 1.5 0.20 6.08 7.32 76 10 3 34 C E CENTRAL AK. 98 5 26 3 44 11.19 63 21.29N 151 17.62W 12.9 2.4 0.24 5.34 3.74 79 12 4 29 C E CENTRAL AK. 98 5 26 4 14 15.93 60 58.38N 147 14.79W 22.9 1.2 0.13 2.29 6.04 53 12 4 13 C E PR WILLIAM SOUND. 98 5 26 4 26 40.02 52 25.48N 169 38.57W 0.0 3.5 0.54 99.03 66.43 214 10 3 238 D E FOX ISLS. 98 5 26 4 32 53.08 61 34.39N 146 15.41W 32.5 0.9 0.14 4.49 6.96 68 12 5 20 C E PR WILLIAM SOUND. 98 5 26 6 52 29.23 60 15.77N 140 43.16W 46.8 1.5 0.37 7.97 20.94 142 11 4 31 D E YAKUTAT BAY. 98 5 26 7 39 14.54 62 52.38N 151 2.38W 106.0 2.0 0.11 10.34 12.01 90 13 3 65 D E CENTRAL AK. 98 5 26 8 2 10.42 60 0.93N 152 9.57W 66.2 2.2 0.22 3.11 6.92 61 13 6 45 C E COOK INLET. 98 5 26 9 4 48.29 57 59.02N 156 41.35W 5.0 1.9 0.21 9.50 4.21 187 10 4 57 C E ALASKA PEN. 98 5 26 10 38 57.96 60 55.70N 146 11.27W 20.6 1.9 0.22 1.47 2.34 71 13 5 24 A E PR WILLIAM SOUND. 98 5 26 10 39 30.36 57 57.67N 156 48.57W 10.0 2.8 0.26 11.32 11.60 171 10 5 64 D E ALASKA PEN. 98 5 26 12 15 17.02 64 34.62N 149 48.15W 17.4 1.1 0.15 6.20 5.01 113 7 4 35 C E CENTRAL AK. 98 5 26 13 41 34.52 62 8.05N 152 31.57W 4.5 2.0 0.42 4.72 12.88 61 12 4 96 D E CENTRAL AK. 98 5 26 13 48 27.02 59 59.38N 151 52.58W 42.2 2.3 0.09 2.37 6.21 64 13 4 33 C E KENAI PEN. 98 5 26 15 31 55.49 53 26.33N 165 17.01W 39.0 3.7 0.13 17.57 49.36 261 12 3 80 D E FOX ISLS. 98 5 26 17 26 10.28 61 33.08N 150 2.28W 37.8 2.4 0.10 2.94 3.63 90 13 5 14 B E COOK INLET. 98 5 26 21 29 33.57 63 29.70N 151 8.51W 8.8 2.3 0.17 4.71 3.89 80 10 4 13 B E CENTRAL AK. 98 5 26 21 51 19.60 64 13.50N 148 56.27W 0.0 1.1 0.20 4.48 99.00 103 10 4 26 D E CENTRAL AK. 98 5 26 21 57 7.11 63 7.32N 150 16.41W 86.1 1.5 0.08 9.51 11.33 67 9 3 36 D E CENTRAL AK. 98 5 26 23 37 56.22 58 0.56N 156 48.76W 5.0 2.2 0.09 21.36 9.42 196 8 4 62 D E ALASKA PEN. 98 5 27 2 3 41.52 63 4.95N 151 0.35W 131.7 2.2 0.14 6.97 5.26 71 19 7 53 C E CENTRAL AK. 98 5 27 2 41 48.79 61 38.94N 146 56.28W 29.6 2.3 0.34 0.98 3.32 47 16 6 29 B E PR WILLIAM SOUND. 98 5 27 4 16 58.41 61 19.35N 146 52.70W 40.4 1.4 0.20 0.97 2.80 66 14 6 33 B E PR WILLIAM SOUND. 98 5 27 9 13 48.80 59 48.78N 148 10.67W 11.8 0.7 0.12 5.79 3.39 241 5 6 31 C E KENAI PEN. 98 5 27 9 13 45.98 62 19.32N 149 52.87W 6.1 1.4 0.29 2.58 2.50 102 15 6 22 B E CENTRAL AK. 98 5 27 9 14 24.96 61 52.91N 150 2.05W 42.5 0.6 0.36 4.98 8.12 113 6 4 27 C E COOK INLET. 98 5 27 13 32 56.89 60 49.02N 149 48.80W 27.4 1.4 0.17 1.95 7.22 81 16 4 41 C E KENAI PEN. 98 5 27 15 43 47.43 63 22.76N 149 32.02W 97.8 1.7 0.33 6.30 4.98 80 14 5 34 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 5 27 16 17 47.60 62 29.12N 148 13.58W 8.1 1.3 0.25 2.91 6.04 64 15 7 76 C E CENTRAL AK. 98 5 27 16 20 4.41 62 57.69N 148 8.42W 68.9 1.7 0.33 3.73 4.73 73 14 10 41 B E CENTRAL AK. 98 5 27 17 15 16.46 54 46.17N 162 34.54W 86.5 2.4 0.21 3.72 1.74 203 12 9 30 B E ALASKA PEN. 98 5 27 17 19 5.12 60 52.63N 152 53.46W 151.2 3.9 0.13 3.22 3.22 70 18 8 29 B E COOK INLET. 98 5 27 18 54 36.78 60 30.96N 143 5.27W 12.7 1.9 0.22 1.42 1.42 109 15 7 15 A E CAPE YAKATAGA. 98 5 27 23 54 57.09 60 37.21N 142 46.02W 25.0 1.0 0.15 1.35 1.77 159 5 5 16 A E CAPE YAKATAGA. 98 5 28 1 21 22.14 59 40.09N 153 33.51W 58.8 1.5 0.29 75.65 42.40 348 5 4 42 D E COOK INLET. 98 5 28 1 33 4.92 60 31.61N 151 8.64W 73.1 2.4 0.16 1.24 2.85 79 18 11 25 B E KENAI PEN. 98 5 28 5 4 7.46 59 59.52N 151 32.53W 42.0 1.7 0.10 3.73 5.11 59 11 4 15 C E KENAI PEN. 98 5 28 5 55 25.28 63 14.84N 151 2.64W 10.6 2.2 0.22 3.02 4.35 75 12 4 35 B E CENTRAL AK. 98 5 28 6 0 2.62 61 2.99N 150 49.32W 58.8 1.0 0.39 10.83 16.37 130 9 4 37 D E COOK INLET. 98 5 28 6 5 41.03 61 29.16N 147 18.88W 36.2 0.9 0.10 6.50 15.20 90 10 5 39 D E PR WILLIAM SOUND. 98 5 28 7 4 15.37 53 16.70N 166 25.80W 0.0 4.8 0.22 3.77 2.51 213 16 4 65 B E FOX ISLS. 98 5 28 7 22 17.65 62 52.95N 150 49.04W 104.3 1.3 0.16 99.00 90.08 344 4 2 158 D E CENTRAL AK. 98 5 28 8 18 56.11 57 57.20N 156 49.44W 65.0 1.5 0.31 54.36 85.12 332 5 3 83 D E ALASKA PEN. 98 5 28 9 2 10.56 60 14.98N 140 53.02W 74.3 1.9 0.19 6.94 10.92 132 12 6 24 D E YAKUTAT BAY. 98 5 28 9 29 8.43 64 27.72N 147 9.42W 15.4 1.6 0.38 4.31 4.66 87 10 5 12 B E CENTRAL AK. 98 5 28 12 47 58.09 53 32.88N 164 34.72W 28.2 3.2 0.16 13.60 94.64 265 13 5 97 D E UNIMAK IS. 98 5 28 14 27 44.66 60 29.72N 150 55.46W 38.8 2.6 0.16 0.98 2.83 61 14 4 33 B E KENAI PEN. 98 5 28 16 54 12.48 53 30.13N 164 31.15W 13.4 4.8 0.17 5.77 8.83 262 13 5 103 C E UNIMAK IS. 98 5 28 20 9 38.38 60 3.08N 152 25.11W 72.5 2.1 0.26 6.78 12.62 75 12 3 30 D E COOK INLET. 98 5 28 20 15 29.39 53 35.93N 164 35.66W 14.5 2.7 0.32 32.13 46.67 262 12 4 92 D E UNIMAK IS. 98 5 28 21 17 25.64 60 24.91N 147 46.03W 15.0 1.6 0.09 0.96 8.28 64 12 5 42 C E PR WILLIAM SOUND. 98 5 28 22 32 3.06 59 44.14N 152 14.71W 66.8 3.2 0.24 1.51 4.12 60 14 5 45 B E COOK INLET. 98 5 28 22 47 39.18 63 23.63N 145 37.15W 5.9 2.8 0.17 3.06 3.21 91 15 5 7 B E E CENTRAL AK. 98 5 28 23 37 55.35 61 59.03N 151 25.94W 71.3 2.3 0.08 4.47 19.26 73 11 3 75 D E COOK INLET. 98 5 29 1 2 41.73 59 59.90N 153 14.01W 115.6 2.8 0.10 3.15 6.20 68 14 3 9 C E COOK INLET. 98 5 29 3 9 51.55 60 32.91N 142 46.75W 20.2 1.0 0.12 2.02 3.66 86 9 5 12 B E CAPE YAKATAGA. 98 5 29 3 11 2.06 61 36.07N 151 0.21W 20.6 0.9 0.49 16.98 66.80 132 10 2 63 D E COOK INLET. 98 5 29 3 14 40.65 60 17.85N 152 15.31W 78.9 1.1 0.20 9.18 16.21 70 9 4 33 D E COOK INLET. 98 5 29 6 50 32.06 63 11.33N 151 36.83W 0.0 1.6 0.18 9.04 52.68 183 7 3 53 D E CENTRAL AK. 98 5 29 10 29 27.92 61 20.71N 147 25.88W 27.6 1.8 0.08 1.47 12.47 72 12 9 55 D E PR WILLIAM SOUND. 98 5 29 11 5 3.75 62 40.44N 149 39.05W 63.0 1.6 0.35 6.46 7.56 100 10 4 34 C E CENTRAL AK. 98 5 29 11 39 34.94 62 2.77N 147 45.62W 34.4 1.2 0.19 4.75 8.49 75 15 5 33 C E CENTRAL AK. 98 5 29 12 15 57.50 60 27.90N 152 27.79W 95.1 2.3 0.15 4.78 9.82 69 16 3 16 C E COOK INLET. 98 5 29 12 32 36.09 62 9.14N 150 30.90W 10.0 2.1 0.21 4.45 7.54 64 13 3 31 C E CENTRAL AK. 98 5 29 13 46 39.81 53 37.83N 165 44.79W 12.6 3.3 0.21 6.46 9.77 241 13 5 54 C E FOX ISLS. 98 5 29 15 25 57.85 59 58.59N 151 35.50W 65.3 3.4 0.22 1.15 3.08 58 14 5 18 B E KENAI PEN. 98 5 29 19 43 5.59 62 32.79N 151 29.46W 65.6 1.1 0.12 14.54 24.36 179 7 4 65 D E CENTRAL AK. 98 5 29 20 43 11.89 61 11.39N 147 57.52W 29.9 1.2 0.10 4.07 5.78 57 11 6 36 C E PR WILLIAM SOUND. 98 5 29 21 31 58.43 61 47.95N 147 20.86W 41.4 2.3 0.21 2.89 3.60 88 13 5 4 B E PR WILLIAM SOUND. 98 5 29 23 5 42.02 60 37.14N 143 11.59W 12.8 0.2 0.34 5.81 5.39 129 6 4 16 C E CAPE YAKATAGA. 98 5 30 0 6 44.89 62 26.44N 150 57.43W 10.0 1.3 0.42 4.11 7.66 77 11 6 36 C E CENTRAL AK. 98 5 30 0 11 30.87 62 0.64N 150 33.27W 47.1 2.4 0.40 4.12 10.87 62 13 6 46 D E CENTRAL AK. 98 5 30 0 21 18.78 60 2.24N 153 3.85W 0.0 1.6 0.13 0.75 3.16 68 13 3 4 B a COOK INLET. 98 5 30 0 32 0.65 54 27.71N 162 6.30W 34.4 2.5 0.12 11.44 11.46 238 13 4 57 D E ALASKA PEN. 98 5 30 1 48 39.66 61 36.54N 150 22.39W 10.8 1.0 0.44 4.83 7.99 106 10 5 27 C E COOK INLET. 98 5 30 4 42 40.01 60 7.03N 147 49.73W 14.1 1.4 0.14 6.51 4.70 69 13 6 9 C E PR WILLIAM SOUND. 98 5 30 5 21 44.18 61 35.68N 150 18.05W 9.2 0.6 0.31 8.80 6.08 227 6 3 23 C E COOK INLET. 98 5 30 6 27 8.09 61 43.41N 147 22.82W 35.7 1.3 0.22 6.57 8.26 100 9 7 13 C E PR WILLIAM SOUND. _____________________________________________________________________________________________________________________________________________________ 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 5 30 7 24 7.31 57 58.52N 156 52.41W 18.8 2.4 0.14 23.39 30.24 180 9 5 84 D E ALASKA PEN. 98 5 30 8 1 8.63 60 2.37N 153 4.15W 0.0 1.0 0.14 0.71 1.08 78 9 6 2 A a COOK INLET. 98 5 30 8 2 45.42 59 8.53N 138 16.43W 0.0 1.6 0.27 52.68 53.92 340 7 2 87 D E SOUTHEASTERN AK. 98 5 30 8 50 25.93 60 3.60N 147 13.16W 0.0 1.5 0.24 6.26 3.82 122 12 7 35 C E PR WILLIAM SOUND. 98 5 30 10 19 4.35 54 9.78N 165 58.60W 7.2 0.3 0.28 4.96 9.77 151 5 4 4 C a FOX ISLS. 98 5 30 11 11 43.75 62 1.96N 151 38.49W 79.0 1.9 0.23 6.47 20.00 77 13 4 75 D E CENTRAL AK. 98 5 30 12 19 27.54 59 38.96N 139 0.78W 0.0 2.4 0.23 8.10 5.19 162 12 3 22 C E YAKUTAT BAY. 98 5 30 12 31 4.42 53 27.48N 165 57.27W 0.0 1.6 0.39 11.63 13.01 295 9 4 71 D E FOX ISLS. 98 5 30 12 54 39.43 61 50.03N 149 5.41W 15.3 1.1 0.11 3.42 2.14 75 9 4 11 B E COOK INLET. 98 5 30 14 43 58.01 62 0.83N 149 25.57W 11.3 1.3 0.13 4.54 5.69 104 10 5 38 C E CENTRAL AK. 98 5 30 15 11 21.62 58 2.26N 156 51.84W 0.0 1.5 0.55 19.78 7.04 202 9 3 63 D E ALASKA PEN. 98 5 30 16 3 41.94 60 16.20N 152 5.93W 75.2 4.5 0.08 6.00 6.19 139 14 3 41 C E COOK INLET. 98 5 30 16 13 20.53 61 16.73N 146 54.73W 30.9 1.2 0.19 4.95 18.65 85 11 6 30 D E PR WILLIAM SOUND. 98 5 31 5 16 56.32 62 59.28N 150 17.40W 90.2 1.9 0.20 2.75 2.46 123 17 10 33 B E CENTRAL AK. 98 5 31 9 4 24.88 60 2.83N 153 11.17W 123.8 3.2 0.24 1.67 2.54 69 23 13 3 B E COOK INLET. 98 5 31 17 57 0.52 58 44.47N 152 54.25W 59.4 2.7 0.15 2.22 4.24 129 19 8 33 B E KODIAK IS REG.