Issued: September 4, 1997 Prepared by: Lalitha Rao No. 35- 97 The following is a list of significant earthquakes during the time period August 25 - 31, 1997 August 25 at 07:26 UTC (August 24,11:26 pm ADT), ML 4.1, 54 N 48', 159 W 60', depth = 32 km (20 mi): A light earthquake was located south of Alaska about 43 mi ( 68 km) SSE of Sand Point 84 mi (136 km) SSW of Perryville 94 mi (151 km) E of King Cove 96 mi (155 km) SSE of Nelson Lagoon August 26 at 01:37 UTC (August 25,05:37 pm ADT), mb 4.4, 51 N 25', 177 W 37', depth = 51 km (32 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 52 mi ( 84 km) SW of Adak 146 mi (236 km) E of Amchitka 156 mi (251 km) WSW of Atka 249 mi (401 km) WSW of Amukta Pass August 26 at 15:18 UTC (07:18 am ADT), mb 3.7, 52 N 8', 173 W 44', depth fixed at 33 km (21 mi): A minor earthquake was located by NEIC in the Andreanof Islands region of Alaska about 21 mi ( 33 km) ESE of Atka 75 mi (121 km) W of Amukta Pass 126 mi (203 km) E of Adak 213 mi (342 km) WSW of Nikolski August 26 at 15:40 UTC (07:40 am ADT), ML 3.9, 60 N 28', 151 W 48', depth = 64 km (40 mi): A minor earthquake was located in the Kenai Peninsula region of Alaska about 19 mi ( 31 km) WSW of Kenai 20 mi ( 33 km) WNW of Kasilof 22 mi ( 36 km) NW of Clam Gulch 25 mi ( 41 km) W of Soldotna 30 mi ( 48 km) N of Ninilchik August 27 at 14:30 UTC (06:30 am ADT), ML 3.5, 63 N 24', 151 W 21', depth = 9 km (6 mi): A minor earthquake was located in the central region of Alaska about 15 mi ( 24 km) WSW of Kantishna 44 mi ( 71 km) SE of Lake Minchumina 75 mi (120 km) W of Cantwell 77 mi (123 km) W of Denali Park August 30 at 17:26 UTC (09:26 am ADT), ML 3.6, 63 N 3', 150 W 54', depth = 126 km (78 mi): A minor earthquake was located in the central region of Alaska about 33 mi ( 53 km) S of Kantishna 57 mi ( 91 km) NNW of Talkeetna 66 mi (105 km) WSW of Cantwell 72 mi (115 km) WSW of Denali Park August 31 at 00:56 UTC (August 30,04:56 pm ADT), ML 3.0, 63 N 26', 151 W 8', depth = 9 km (5 mi): A minor earthquake , felt at the Wonder Lake Ranger Station, was located in the central region of Alaska about 8 mi ( 13 km) SW of Kantishna 47 mi ( 76 km) SE of Lake Minchumina 68 mi (110 km) W of Cantwell 70 mi (112 km) W of Denali Park _____________________________________________________________________________________________________________________________________________________ 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 8 25 1 29 1.48 61 23.72N 146 45.22W 14.1 1.1 0.13 1.61 2.05 108 14 2 37 A E PR WILLIAM SOUND. 97 8 25 3 5 28.41 59 44.15N 152 24.04W 67.0 1.8 0.21 1.49 3.90 92 27 7 44 B E COOK INLET. 97 8 25 3 50 55.11 58 21.67N 154 50.34W 7.8 2.2 0.17 1.18 1.81 170 19 11 17 A E ALASKA PEN. 97 8 25 7 26 45.16 54 47.53N 159 59.98W 31.8 4.1 0.26 3.85 1.75 243 15 6 23 B E SOUTH OF AK. 97 8 25 12 55 56.22 61 21.75N 146 27.47W 30.8 0.9 0.19 2.15 3.48 71 16 5 27 B E PR WILLIAM SOUND. 97 8 25 13 13 53.96 63 22.33N 151 33.04W 171.7 2.8 0.19 6.13 5.32 81 19 9 37 C E CENTRAL AK. 97 8 25 14 13 27.70 60 13.34N 151 58.32W 72.0 2.0 0.29 2.69 3.74 52 34 10 46 B E KENAI PEN. 97 8 25 17 52 11.66 61 33.50N 150 51.42W 56.3 1.9 0.21 1.81 2.35 67 22 9 12 A E COOK INLET. 97 8 25 18 58 37.67 62 0.64N 147 34.98W 33.5 2.1 0.33 1.13 2.09 55 20 5 24 A E CENTRAL AK. 97 8 25 21 1 28.74 61 5.38N 148 22.79W 31.7 1.9 0.22 0.99 2.76 48 22 8 26 B E PR WILLIAM SOUND. 97 8 25 22 48 9.67 59 56.16N 151 5.87W 55.1 1.8 0.23 2.10 5.26 71 19 11 22 C E KENAI PEN. 97 8 25 23 54 50.40 61 8.33N 150 38.68W 46.6 3.1 0.24 0.81 2.15 55 30 7 25 A E COOK INLET. 97 8 26 0 23 31.26 61 6.22N 150 37.89W 37.1 1.7 0.30 2.45 6.98 58 28 7 26 C E COOK INLET. 97 8 26 1 37 49.25 51 24.90N 177 37.14W 51.3* 4.4mb R ANDREANOF ISLS. 97 8 26 4 12 43.95 63 3.82N 150 58.58W 122.1 1.6 0.15 5.20 7.27 164 12 5 55 C E CENTRAL AK. 97 8 26 4 14 25.65 61 40.90N 149 36.31W 38.8 2.1 0.25 1.48 1.45 79 21 5 15 A E COOK INLET. 97 8 26 4 20 38.92 62 47.94N 149 40.14W 77.6 2.0 0.14 3.75 4.71 103 17 4 20 B E CENTRAL AK. 97 8 26 6 20 29.07 60 28.03N 152 16.89W 91.9 1.7 0.24 5.03 6.05 73 22 5 14 C E COOK INLET. 97 8 26 13 39 20.10 61 47.19N 149 28.36W 40.5 1.6 0.21 2.05 2.75 67 16 6 26 B E COOK INLET. 97 8 26 13 43 8.27 58 43.71N 152 55.14W 58.9 3.4 0.14 1.38 2.92 77 26 8 33 B E KODIAK IS REG. 97 8 26 13 46 12.10 59 56.32N 141 17.60W 8.0 3.3 0.13 1.29 1.20 156 16 5 17 A E YAKUTAT BAY. 97 8 26 15 11 11.21 59 54.78N 141 18.07W 4.7 2.0 0.17 3.88 3.28 168 14 5 20 B E YAKUTAT BAY. 97 8 26 15 18 55.55 52 7.80N 173 43.74W 33.0N 3.7mb R ANDREANOF ISLS. 97 8 26 15 24 39.76 60 5.62N 152 49.44W 105.4 1.9 0.24 7.32 4.46 95 23 7 8 C E COOK INLET. 97 8 26 15 40 0.78 60 28.45N 151 47.58W 64.3 3.9 0.27 0.68 2.29 45 31 10 35 A E KENAI PEN. 97 8 26 17 22 35.06 61 25.85N 146 41.89W 13.7 1.6 0.08 0.89 1.94 60 18 4 39 A E PR WILLIAM SOUND. 97 8 26 17 32 5.63 60 51.91N 150 36.82W 32.1 1.8 0.31 1.07 3.05 61 28 5 37 B E KENAI PEN. 97 8 26 18 21 48.38 62 52.07N 149 38.44W 75.0 2.1 0.10 2.15 4.56 55 17 6 12 B E CENTRAL AK. 97 8 26 19 16 6.58 61 16.31N 151 51.13W 86.9 1.6 0.26 5.55 5.36 81 16 3 9 C E COOK INLET. 97 8 26 19 57 1.80 52 16.50N 170 3.30W 50.0G R FOX ISLS. 97 8 26 21 4 53.99 61 57.26N 150 0.10W 46.7 2.0 0.18 1.15 4.81 72 20 6 34 B E COOK INLET. 97 8 27 6 7 55.27 57 38.44N 155 58.24W 9.8 1.2 0.44 17.22 26.10 323 8 5 52 D E ALASKA PEN. 97 8 27 10 28 50.98 61 52.32N 150 2.11W 43.2 1.9 0.16 3.25 7.14 84 12 7 26 C E COOK INLET. 97 8 27 10 40 16.51 60 22.82N 152 7.60W 68.8 1.8 0.17 4.63 7.85 54 12 5 26 C E COOK INLET. 97 8 27 13 33 12.28 61 18.80N 146 43.61W 14.8 0.9 0.16 2.16 4.23 69 14 9 29 B E PR WILLIAM SOUND. 97 8 27 13 44 0.90 60 29.98N 143 4.36W 3.1 0.6 0.13 5.28 5.24 124 7 3 13 C E CAPE YAKATAGA. 97 8 27 14 12 13.75 60 42.03N 147 15.11W 20.2 1.9 0.19 0.75 2.53 77 16 9 22 B E PR WILLIAM SOUND. 97 8 27 14 30 12.67 63 24.26N 151 21.07W 9.3 3.5 0.19 3.83 3.34 81 16 4 27 B E CENTRAL AK. 97 8 27 14 55 37.26 61 38.85N 146 35.72W 28.7 1.4 0.14 4.75 16.55 90 14 4 40 D E PR WILLIAM SOUND. 97 8 27 15 4 9.26 63 17.03N 151 14.52W 5.8 1.1 0.23 4.30 5.23 187 9 4 34 C E CENTRAL AK. 97 8 27 15 26 19.73 60 46.23N 147 14.74W 20.7 1.5 0.17 3.10 2.93 74 13 7 15 B E PR WILLIAM SOUND. 97 8 27 16 19 49.85 61 31.54N 146 36.09W 30.1 1.8 0.14 1.28 6.24 67 15 10 36 C E PR WILLIAM SOUND. 97 8 27 17 7 23.80 60 46.25N 147 13.46W 20.5 1.6 0.19 3.50 3.36 67 14 7 14 B E PR WILLIAM SOUND. 97 8 27 17 9 51.38 61 29.67N 146 29.75W 20.0 0.7 0.31 13.22 98.21 139 5 5 31 D E PR WILLIAM SOUND. 97 8 27 17 59 52.65 62 0.79N 148 13.24W 17.5 1.2 0.26 5.47 5.82 117 10 7 24 C E CENTRAL AK. 97 8 27 18 26 47.99 61 3.09N 146 28.73W 29.4 1.4 0.23 3.17 2.56 58 14 6 4 B E PR WILLIAM SOUND. 97 8 27 18 51 36.55 60 33.08N 141 42.58W 8.5 1.6 0.21 2.57 2.59 96 14 10 22 B E YAKUTAT BAY. 97 8 27 18 53 35.97 60 41.61N 147 16.98W 21.0 1.8 0.15 1.54 3.82 76 19 8 23 B E PR WILLIAM SOUND. 97 8 27 19 13 29.94 59 58.85N 153 4.68W 0.5 0.5 0.10 1.35 1.03 144 15 4 3 A a COOK INLET. 97 8 27 20 13 10.82 60 36.53N 151 50.98W 75.7 2.8 0.18 3.37 4.71 54 16 6 31 B E KENAI 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 _____________________________________________________________________________________________________________________________________________________ 97 8 27 22 51 22.01 63 4.76N 151 4.61W 128.3 1.6 0.23 12.81 12.06 71 11 3 53 D E CENTRAL AK. 97 8 28 0 26 27.82 65 14.30N 148 32.21W 6.8 2.2 0.15 4.86 6.28 110 16 7 34 C E N CENTRAL AK. 97 8 28 2 31 4.23 58 36.74N 155 14.13W 1.1 0.2 0.31 7.96 27.78 291 7 5 26 D a ALASKA PEN. 97 8 28 2 43 2.80 61 56.62N 148 47.45W 35.7 1.4 0.22 5.58 8.49 100 10 7 20 C E PR WILLIAM SOUND. 97 8 28 3 4 5.98 60 18.53N 150 58.08W 53.0 1.8 0.14 3.16 9.00 71 12 7 34 C KENAI PEN. 97 8 28 6 45 52.87 60 53.00N 148 7.09W 15.5 1.4 0.28 3.48 3.22 81 12 8 12 B E KENAI PEN. 97 8 28 7 22 5.42 60 23.10N 144 53.45W 11.5 1.3 0.09 3.50 1.34 65 17 7 12 B E CAPE YAKATAGA. 97 8 28 7 25 16.64 60 22.79N 144 53.88W 11.6 1.5 0.14 3.54 2.08 66 16 8 12 B E CAPE YAKATAGA. 97 8 28 14 7 52.74 63 7.46N 151 13.24W 122.3 1.7 0.24 12.40 10.77 74 10 3 50 D E CENTRAL AK. 97 8 28 16 7 15.15 61 28.70N 151 45.22W 6.4 2.0 0.14 4.41 5.31 62 10 4 23 C E COOK INLET. 97 8 28 16 52 13.82 58 26.96N 154 55.53W 21.4 0.4 0.15 15.44 17.40 323 5 4 19 D E ALASKA PEN. 97 8 28 18 3 5.00 62 2.40N 151 40.04W 96.5 1.7 0.48 11.78 25.09 77 8 3 75 D E CENTRAL AK. 97 8 28 20 13 22.82 60 13.84N 147 2.53W 9.4 1.5 0.16 3.82 7.22 89 14 10 35 C E PR WILLIAM SOUND. 97 8 28 20 22 0.23 60 4.50N 147 28.41W 14.3 1.3 0.13 5.12 4.80 122 12 6 22 C E PR WILLIAM SOUND. 97 8 28 20 22 18.98 59 58.87N 153 20.81W 119.8 1.9 0.14 7.83 10.35 76 12 3 15 D E COOK INLET. 97 8 28 21 16 14.42 61 11.15N 149 21.85W 43.5 2.0 0.13 2.11 3.73 89 13 9 12 B E COOK INLET. 97 8 29 4 21 56.05 58 58.87N 154 21.07W 125.0 3.0 0.18 2.71 2.58 79 33 10 23 B E ALASKA PEN. 97 8 29 5 19 1.84 60 4.16N 151 53.44W 70.7 1.5 0.34 3.27 5.41 90 22 11 34 C E KENAI PEN. 97 8 29 8 56 42.08 61 44.50N 147 35.75W 36.5 2.2 0.33 1.52 2.71 46 21 5 17 B E PR WILLIAM SOUND. 97 8 29 11 0 6.58 61 41.63N 149 38.25W 39.5 0.8 0.26 3.92 3.89 162 7 5 29 B E COOK INLET. 97 8 29 11 53 56.11 60 5.83N 153 25.69W 134.1 2.3 0.30 3.15 3.07 152 32 13 17 B E COOK INLET. 97 8 29 16 19 4.77 59 2.93N 153 46.96W 98.4 3.5 0.20 2.11 3.58 88 17 8 15 B E COOK INLET. 97 8 29 22 33 35.04 61 38.61N 149 58.81W 37.4 1.5 0.29 1.12 2.00 177 15 11 5 A E COOK INLET. 97 8 30 0 1 30.44 60 0.84N 142 0.19W 7.0 2.6 0.30 1.36 0.68 163 15 5 3 A E CAPE YAKATAGA. 97 8 30 0 50 9.59 53 49.14N 166 41.21W 12.2 2.0 0.16 2.03 2.37 198 9 8 12 A a FOX ISLS. 97 8 30 1 32 27.72 63 23.58N 151 23.97W 14.4 1.7 0.24 5.90 3.90 80 11 5 30 C E CENTRAL AK. 97 8 30 1 52 32.35 61 18.03N 149 42.63W 38.8 1.2 0.15 4.29 5.40 98 14 7 10 C E COOK INLET. 97 8 30 4 5 10.20 59 53.95N 152 35.79W 84.6 2.1 0.37 6.64 8.99 59 14 7 27 C E COOK INLET. 97 8 30 5 11 52.49 60 27.84N 148 23.78W 5.0 1.4 0.24 2.32 3.12 89 13 6 44 B E KENAI PEN. 97 8 30 5 15 4.56 60 56.97N 147 19.73W 26.8 1.7 0.21 1.48 2.68 53 19 7 15 B E PR WILLIAM SOUND. 97 8 30 6 21 41.07 60 53.17N 146 43.32W 15.3 1.1 0.16 1.13 3.29 76 13 7 19 B E PR WILLIAM SOUND. 97 8 30 6 31 51.85 61 26.37N 148 51.35W 38.0 2.8 0.16 0.88 2.29 39 18 8 22 A E PR WILLIAM SOUND. 97 8 30 7 10 0.63 61 26.04N 148 50.71W 35.0 1.3 0.12 3.28 4.91 78 12 6 21 B E PR WILLIAM SOUND. 97 8 30 8 7 48.31 60 4.40N 151 42.97W 46.8 1.8 0.30 5.54 13.76 67 12 5 24 D E KENAI PEN. 97 8 30 8 40 15.50 61 33.12N 146 25.84W 33.7 1.4 0.10 1.73 5.53 69 14 7 28 C E PR WILLIAM SOUND. 97 8 30 9 15 3.62 60 16.11N 144 30.04W 20.7 1.3 0.07 5.67 2.06 105 14 6 15 C E CAPE YAKATAGA. 97 8 30 9 46 4.31 60 48.06N 146 9.15W 28.0 1.0 0.13 3.39 5.23 110 14 4 26 C E PR WILLIAM SOUND. 97 8 30 12 14 59.77 62 36.60N 149 35.80W 17.1 1.6 0.23 5.01 4.80 103 8 6 41 C E CENTRAL AK. 97 8 30 17 26 7.92 63 3.14N 150 54.40W 125.6 3.6 0.21 1.47 3.19 90 16 11 54 B E CENTRAL AK. 97 8 30 18 54 56.66 60 58.41N 146 41.59W 23.2 1.9 0.28 0.61 0.73 49 15 10 10 A E PR WILLIAM SOUND. 97 8 30 19 49 27.57 63 20.48N 145 19.82W 5.5 1.9 0.22 0.86 1.72 86 13 6 23 A E E CENTRAL AK. 97 8 30 20 45 11.59 61 50.16N 149 33.37W 10.9 1.8 0.46 1.26 1.60 81 14 10 27 A E COOK INLET. 97 8 31 0 56 43.37 63 26.20N 151 8.19W 8.7 3.0 0.60 2.45 1.88 200 16 13 17 A E CENTRAL AK. 97 8 31 2 43 29.82 59 54.92N 151 10.85W 39.9 2.8 0.31 0.85 1.82 59 20 14 16 A E KENAI PEN. 97 8 31 3 36 27.65 60 41.94N 143 46.78W 15.0 1.2 0.23 1.35 6.70 145 6 5 36 C E CAPE YAKATAGA. 97 8 31 7 18 14.26 61 9.20N 151 15.08W 61.6 1.9 0.24 2.46 3.60 80 15 9 43 B E COOK INLET. 97 8 31 8 41 39.76 60 18.41N 149 55.72W 51.1 2.6 0.24 1.08 1.36 90 17 12 28 A E KENAI PEN. 97 8 31 11 4 42.86 59 45.22N 152 43.56W 81.0 2.3 0.21 2.27 3.75 71 19 13 30 B E COOK INLET. 97 8 31 12 14 51.58 63 53.14N 150 40.34W 3.0 2.3 0.35 1.06 3.39 160 15 11 39 B E CENTRAL AK. 97 8 31 17 29 30.02 60 27.13N 152 24.74W 98.5 2.9 0.27 1.45 2.66 68 17 14 13 B 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 8 31 17 43 56.01 59 58.82N 153 3.00W 2.4 0.4 0.04 1.40 1.91 177 5 6 3 A a COOK INLET. 97 8 31 18 24 29.18 61 48.36N 149 25.85W 35.5 1.9 0.26 0.97 2.05 78 16 11 27 A E COOK INLET. 97 8 31 20 59 19.10 63 15.75N 151 6.14W 3.8 1.5 0.14 1.98 8.61 176 10 3 34 C E CENTRAL AK. 97 8 31 21 3 32.65 63 16.05N 151 5.75W 11.8 1.6 0.22 2.07 1.37 176 14 7 33 A E CENTRAL AK.