Issued: September 30, 1997 Prepared by: Lalitha Rao No. 39- 97 The following is a list of significant earthquakes during the time period September 22 -28, 1997 September 22 at 10:20 UTC (02:20 am ADT), mb 4.6, 51 N 10', 176 W 41', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 50 mi ( 80 km) S of Adak 128 mi (207 km) WSW of Atka 189 mi (304 km) E of Amchitka 217 mi (350 km) WSW of Amukta Pass 328 mi (528 km) ESE of Buldir Is September 22 at 16:37 UTC (08:37 am ADT), ML 3.4, 58 N 26', 155 W 17', depth = 127 km (79 mi): A minor earthquake was located in the Alaska Peninsula region of Alaska about 53 mi ( 85 km) ESE of King Salmon 65 mi (104 km) ESE of South Naknek 66 mi (106 km) ESE of Naknek 68 mi (109 km) NNW of Karluk 73 mi (118 km) SE of Levelock September 22 at 22:18 UTC (02:18 pm ADT), ML 3.7, 56 N 35', 156 W 13', depth = 12 km (7 mi): A minor earthquake was located in the Alaska Peninsula region of Alaska about 85 mi (137 km) SE of Pilot Point 87 mi (139 km) ENE of Chignik 90 mi (144 km) E of Chignik Lagoon 95 mi (153 km) SW of Karluk 97 mi (156 km) ESE of Port Heiden September 24 at 16:58 UTC (08:58 am ADT), mb 4.1, 51 N 41', 173 W 26', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 49 mi ( 78 km) SE of Atka 77 mi (123 km) SW of Amukta Pass 139 mi (224 km) E of Adak 212 mi (341 km) WSW of Nikolski 326 mi (525 km) E of Amchitka September 25 at 01:25 UTC (September 24, 05:25 pm ADT), mb 5.2, 51 N 34', 173 W 34', depth fixed at 33 km (21 mi): A moderate earthquake was located by NEIC in the Andreanof Islands region of Alaska about 51 mi ( 82 km) SSE of Atka 86 mi (138 km) SW of Amukta Pass 135 mi (217 km) E of Adak 221 mi (355 km) WSW of Nikolski 321 mi (516 km) E of Amchitka September 25 at 21:51 UTC (01:51 pm ADT), ML 3.9, 61 N 57', 150 W 2', depth = 38 km (24 mi): A minor earthquake, felt in Willow, Talkeetna and Palmer, was located in the Cook Inlet region of Alaska about 14 mi ( 23 km) N of Willow 26 mi ( 42 km) S of Talkeetna 27 mi ( 43 km) WNW of Hatcher Pass 32 mi ( 52 km) NW of Wasilla 37 mi ( 60 km) E of Skwentna September 26 at 15:23 UTC (07:23 am ADT), ML 3.2, 63 N 20', 145 W 20', depth = 6 km (4 mi): A minor earthquake, felt sharply at mile 220 Richardson Highway,was located in the east-central region of Alaska about 15 mi ( 24 km) ESE of Pump Station #10 22 mi ( 35 km) NNE of Paxson 43 mi ( 70 km) SSE of Pump Station #9 50 mi ( 81 km) SSE of Delta Junction 62 mi ( 99 km) NW of Slana _____________________________________________________________________________________________________________________________________________________ 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 9 22 0 42 4.73 59 33.64N 152 59.11W 102.3 3.3 0.28 1.10 1.93 73 27 21 17 A E COOK INLET. 97 9 22 2 52 46.74 58 9.46N 155 23.95W 0.0 0.9 0.18 0.66 63.40 88 7 7 7 D a ALASKA PEN. 97 9 22 6 29 20.98 60 4.86N 152 57.32W 109.5 2.8 0.26 1.12 2.00 64 27 13 0 A E COOK INLET. 97 9 22 8 24 55.94 63 19.17N 144 13.98W 0.0 2.8 0.28 1.24 2.13 85 15 10 38 A E E CENTRAL AK. 97 9 22 10 20 53.79 51 9.54N 176 40.80W 33.0N 4.6mb R ANDREANOF ISLS. 97 9 22 15 16 52.91 64 42.83N 147 32.93W 18.2 1.4 0.33 1.61 2.13 95 11 8 23 A E CENTRAL AK. 97 9 22 16 37 4.63 58 26.44N 155 16.58W 126.7 3.4 0.27 2.98 3.12 87 16 10 7 B E ALASKA PEN. 97 9 22 17 2 45.03 61 42.68N 148 24.94W 9.9 0.6 0.21 1.72 2.26 107 6 3 12 A E PR WILLIAM SOUND. 97 9 22 17 46 35.48 60 1.53N 153 35.76W 112.9 3.0 0.26 3.59 3.05 86 18 4 26 B E COOK INLET. 97 9 22 18 7 40.59 62 17.32N 149 6.28W 44.3 2.2 0.24 1.44 4.38 46 18 10 58 B E CENTRAL AK. 97 9 22 18 46 42.06 61 55.04N 151 53.94W 114.5 3.3 0.22 2.32 3.22 75 19 10 21 B E COOK INLET. 97 9 22 18 56 38.94 61 29.38N 148 18.62W 11.6 1.3 0.18 0.81 0.79 55 11 5 12 A E PR WILLIAM SOUND. 97 9 22 19 52 51.42 62 14.40N 149 19.94W 52.0 2.9 0.30 0.93 3.11 49 17 13 52 B E CENTRAL AK. 97 9 22 21 12 56.11 57 17.07N 154 1.54W 25.3 3.0 0.24 4.96 99.00 253 13 10 105 D E KODIAK IS REG. 97 9 22 22 18 19.69 56 34.87N 156 12.53W 11.6 3.7 0.18 12.26 13.11 225 16 14 119 D E ALASKA PEN. 97 9 23 0 1 35.41 62 44.84N 151 54.68W 10.8 2.4 0.35 4.89 5.08 111 14 6 88 C E CENTRAL AK. 97 9 23 3 7 40.40 61 29.31N 151 56.13W 12.1 1.1 0.13 2.81 3.42 150 10 4 6 B E COOK INLET. 97 9 23 5 1 11.41 59 47.75N 151 24.90W 38.2 1.4 0.24 6.14 13.48 71 10 4 20 D E KENAI PEN. 97 9 23 7 30 24.44 51 43.86N 175 12.12W 27.6 5.1mb R ANDREANOF ISLS. 97 9 23 8 14 1.84 59 40.83N 152 6.37W 60.2 3.0 0.21 2.71 6.11 52 14 9 26 C E COOK INLET. 97 9 23 8 37 5.48 62 8.75N 149 7.23W 32.6 2.0 0.20 3.83 7.21 56 13 7 43 C E CENTRAL AK. 97 9 23 10 39 49.57 63 0.47N 151 3.31W 119.0 2.2 0.14 9.00 10.90 146 10 5 61 D E CENTRAL AK. 97 9 23 12 22 12.36 61 30.78N 146 22.44W 31.6 1.5 0.15 3.60 6.90 67 13 7 24 C E PR WILLIAM SOUND. 97 9 23 13 23 51.83 63 8.59N 150 37.76W 115.0 2.0 0.04 6.85 10.57 106 10 4 38 D E CENTRAL AK. 97 9 23 13 52 27.52 61 21.13N 147 5.22W 8.1 1.8 0.11 1.39 5.41 47 13 5 42 C E PR WILLIAM SOUND. 97 9 23 15 8 55.21 61 41.88N 149 37.91W 38.3 2.5 0.23 1.69 2.47 62 14 6 14 A E COOK INLET. 97 9 23 15 19 5.89 57 42.28N 154 22.80W 49.0 2.9 0.08 5.15 9.87 213 14 5 67 C E KODIAK IS REG. 97 9 23 20 15 40.22 61 38.13N 151 4.24W 77.7 2.7 0.14 3.52 6.89 78 9 8 26 C E COOK INLET. 97 9 23 20 44 25.46 51 51.72N 173 35.10W 33.0N 4.3mb R ANDREANOF ISLS. 97 9 23 20 44 54.39 51 36.96N 173 35.88W 33.0N 5.0mb R ANDREANOF ISLS. 97 9 23 21 19 46.98 61 46.32N 148 32.70W 20.8 0.8 0.08 8.43 11.73 160 5 3 12 D E PR WILLIAM SOUND. 97 9 23 22 38 1.51 60 32.06N 145 16.80W 23.9 1.5 0.14 7.02 2.55 157 12 5 4 C E PR WILLIAM SOUND. 97 9 23 22 40 30.57 59 7.56N 152 18.54W 69.9 3.2 0.18 1.81 7.74 129 17 6 52 C E COOK INLET. 97 9 23 23 15 4.34 62 47.61N 150 43.94W 7.4 1.4 0.07 4.41 20.96 149 7 5 49 D E CENTRAL AK. 97 9 24 1 18 54.26 58 15.32N 155 3.49W 9.2 0.3 0.25 7.99 7.22 231 5 2 7 C E ALASKA PEN. 97 9 24 2 24 57.60 58 11.06N 155 23.20W 0.0 0.4 0.10 2.80 98.98 89 9 4 5 D a ALASKA PEN. 97 9 24 2 40 26.90 61 38.69N 150 53.31W 51.1 1.9 0.31 2.21 2.84 66 18 11 22 B E COOK INLET. 97 9 24 4 45 56.32 63 18.25N 144 10.78W 0.0 2.8 0.17 1.31 3.02 79 14 7 39 B E E CENTRAL AK. 97 9 24 5 30 24.97 60 43.88N 147 34.37W 0.5 1.2 0.24 5.19 5.17 136 9 4 79 C E PR WILLIAM SOUND. 97 9 24 5 33 43.83 61 44.73N 151 51.72W 106.7 2.5 0.12 3.26 3.94 51 25 5 28 B E COOK INLET. 97 9 24 5 55 32.73 63 19.01N 144 13.58W 0.0 3.3 0.26 0.98 2.23 77 17 11 38 A E E CENTRAL AK. 97 9 24 6 52 9.91 63 18.86N 144 11.14W 0.0 2.5 0.25 1.29 2.47 79 17 7 38 A E E CENTRAL AK. 97 9 24 8 14 0.66 63 19.08N 144 13.75W 0.9 2.7 0.46 0.72 1.54 76 16 9 38 A E E CENTRAL AK. 97 9 24 8 59 50.89 63 15.66N 151 3.49W 0.9 1.6 0.23 1.55 3.56 142 14 7 33 B E CENTRAL AK. 97 9 24 10 35 46.96 60 23.07N 152 25.08W 91.2 2.1 0.23 1.38 2.35 70 18 13 20 A E COOK INLET. 97 9 24 16 58 33.24 51 40.62N 173 25.62W 33.0N 4.1mb R ANDREANOF ISLS. 97 9 24 20 46 50.26 61 2.40N 150 19.63W 15.4 2.1 0.40 0.73 1.34 82 22 16 16 A E COOK INLET. 97 9 24 21 43 18.28 61 28.54N 152 0.61W 5.8 1.0 0.05 2.23 4.55 210 8 6 10 B E COOK INLET. 97 9 25 1 25 31.74 51 34.14N 173 33.60W 33.0N 5.2mb R ANDREANOF ISLS. 97 9 25 4 9 42.64 63 14.31N 150 24.35W 118.6 2.3 0.11 4.89 9.50 61 12 5 24 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 _____________________________________________________________________________________________________________________________________________________ 97 9 25 8 14 26.81 63 16.88N 151 19.57W 6.0 2.7 0.15 5.02 4.94 78 11 4 36 C E CENTRAL AK. 97 9 25 12 17 49.46 61 33.96N 151 40.60W 101.1 1.9 0.22 10.12 11.15 65 11 3 11 D E COOK INLET. 97 9 25 12 38 0.06 58 10.56N 154 11.11W 66.1 2.7 0.10 3.67 7.54 144 17 7 56 C E ALASKA PEN. 97 9 25 13 49 56.99 59 26.78N 152 36.31W 70.8 2.2 0.18 3.52 8.08 84 14 8 42 C E COOK INLET. 97 9 25 15 17 19.92 61 1.85N 151 7.56W 61.9 3.0 0.21 1.15 3.77 59 13 7 33 B E COOK INLET. 97 9 25 18 13 44.85 60 7.71N 152 42.40W 109.9 1.9 0.19 8.06 10.17 97 12 4 15 D E COOK INLET. 97 9 25 19 7 40.09 60 46.86N 151 14.23W 51.3 2.5 0.19 1.38 6.45 54 14 7 4 C E KENAI PEN. 97 9 25 20 10 40.56 54 29.36N 161 27.90W 9.3 2.1 0.30 19.90 42.21 223 11 3 74 D E ALASKA PEN. 97 9 25 20 33 25.06 62 54.00N 151 1.10W 103.4 1.9 0.13 9.62 12.91 90 9 5 67 D E CENTRAL AK. 97 9 25 21 6 52.05 60 20.75N 145 4.93W 14.8 0.9 0.05 16.63 7.54 177 7 2 22 D E PR WILLIAM SOUND. 97 9 25 21 51 15.64 61 56.60N 150 2.32W 38.0 3.9 0.20 0.98 3.06 73 23 6 34 B E COOK INLET. 97 9 25 22 48 38.66 65 30.67N 148 10.47W 9.6 2.2 0.43 5.23 6.13 160 12 5 62 C E N CENTRAL AK. 97 9 25 23 22 0.95 60 56.21N 152 21.84W 6.0 0.9 0.25 13.29 98.99 170 6 4 16 D E COOK INLET. 97 9 25 23 44 45.09 61 17.07N 140 17.84W 0.0 2.1 0.47 7.23 5.43 185 12 6 66 C E S YUKON TERR. 97 9 26 4 2 30.05 61 42.19N 151 46.72W 99.4 2.9 0.20 1.56 1.84 96 18 9 23 A E COOK INLET. 97 9 26 4 24 13.43 63 2.74N 151 32.84W 9.6 2.3 0.34 1.64 1.52 150 21 11 65 A E CENTRAL AK. 97 9 26 4 42 9.01 63 15.94N 151 4.84W 0.0 1.7 0.35 1.68 2.36 167 15 8 33 A E CENTRAL AK. 97 9 26 7 11 27.69 60 45.55N 151 26.56W 62.3 1.7 0.35 1.40 2.07 125 19 15 11 A E KENAI PEN. 97 9 26 8 4 35.64 61 29.06N 149 15.91W 31.6 0.9 0.19 1.20 1.55 65 10 7 14 A E COOK INLET. 97 9 26 8 18 36.55 59 58.49N 153 5.90W 0.0 1.7 0.22 0.38 0.61 62 28 7 3 A a COOK INLET. 97 9 26 8 59 57.55 59 59.82N 153 22.01W 127.5 2.2 0.16 6.09 2.32 137 21 8 15 C E COOK INLET. 97 9 26 9 5 24.84 60 9.61N 147 4.91W 8.9 2.6 0.29 1.72 2.63 100 15 10 42 B E PR WILLIAM SOUND. 97 9 26 11 51 40.35 62 13.44N 150 18.08W 10.4 1.7 0.29 2.14 2.39 121 17 11 20 A E CENTRAL AK. 97 9 26 14 12 58.44 59 59.26N 152 9.71W 81.3 2.2 0.34 0.80 1.84 51 27 18 46 A E COOK INLET. 97 9 26 15 5 56.63 64 40.77N 146 46.56W 6.1 1.7 0.26 0.70 2.33 98 15 6 12 A E CENTRAL AK. 97 9 26 15 15 3.12 60 26.73N 147 8.61W 14.3 1.9 0.21 0.81 2.51 123 14 12 36 B E PR WILLIAM SOUND. 97 9 26 15 23 10.15 63 20.13N 145 20.20W 6.2 3.2 0.33 0.62 0.89 85 17 7 23 A E E CENTRAL AK. 97 9 26 15 43 16.05 63 20.19N 145 20.91W 4.3 1.9 0.18 0.75 2.66 85 15 4 22 B E E CENTRAL AK. 97 9 26 15 44 0.87 64 47.55N 149 9.03W 24.4 1.0 0.29 4.44 10.46 136 8 4 24 D E CENTRAL AK. 97 9 26 17 54 32.34 58 15.94N 154 59.63W 0.0 1.5 0.19 3.12 6.28 194 9 6 11 C a ALASKA PEN. 97 9 26 18 16 0.20 54 21.40N 162 19.57W 0.0 3.3 0.33 3.33 1.78 197 15 9 68 B E ALASKA PEN. 97 9 26 18 31 56.83 63 38.56N 147 32.62W 6.7 2.4 0.23 0.64 2.01 63 16 8 64 A E CENTRAL AK. 97 9 26 18 44 41.37 59 58.95N 152 58.36W 106.9 1.9 0.28 1.51 2.61 83 21 14 4 B E COOK INLET. 97 9 26 20 26 13.68 61 32.34N 150 16.33W 33.4 2.1 0.21 1.27 1.67 59 18 10 24 A E COOK INLET. 97 9 26 21 13 55.87 65 0.53N 148 29.42W 13.6 1.6 0.28 1.39 1.35 154 14 7 14 A E N CENTRAL AK. 97 9 26 21 20 14.40 60 37.29N 150 38.04W 14.3 2.4 0.21 0.85 4.78 58 16 12 36 B E KENAI PEN. 97 9 26 22 54 4.31 61 20.37N 139 43.95W 6.0 2.4 0.60 7.80 7.92 202 15 9 96 C E S YUKON TERR. 97 9 26 23 33 8.65 63 5.71N 144 16.34W 1.3 2.3 0.29 0.67 1.97 82 14 10 62 A E E CENTRAL AK. 97 9 26 23 39 18.84 61 29.55N 150 15.65W 46.4 2.1 0.24 1.05 3.24 89 19 11 26 B E COOK INLET. 97 9 27 4 0 6.82 63 29.14N 150 49.48W 10.0 2.5 0.11 2.42 3.04 69 10 4 9 B E CENTRAL AK. 97 9 27 6 9 14.72 60 3.96N 153 0.36W 112.2 2.9 0.26 2.90 5.84 72 14 6 3 C E COOK INLET. 97 9 27 11 25 56.52 61 52.80N 149 35.17W 12.3 1.1 0.31 6.67 12.91 127 7 5 30 D E COOK INLET. 97 9 27 11 41 15.74 61 41.60N 149 39.09W 52.3 1.7 0.16 5.37 9.05 78 9 7 13 C E COOK INLET. 97 9 27 12 3 39.60 58 8.17N 143 19.70W 10.0G 2.2 0.29 57.66 83.45 281 13 5 209 D E GULF OF ALASKA. 97 9 27 12 12 4.82 60 8.42N 153 45.01W 5.8 1.3 0.16 6.76 6.31 105 8 3 35 C E COOK INLET. 97 9 27 14 6 19.11 59 15.03N 152 57.94W 71.9 2.3 0.18 4.73 9.30 83 14 6 27 C E COOK INLET. 97 9 27 14 42 37.78 53 32.04N 165 16.66W 44.9 3.5 0.12 13.60 19.41 244 14 4 70 D E FOX ISLS. 97 9 27 14 50 31.82 60 16.13N 150 57.90W 52.2 1.8 0.19 3.66 7.59 74 15 5 31 C E KENAI PEN. 97 9 27 15 10 26.46 62 55.08N 151 15.38W 114.8 2.6 0.13 3.61 8.04 69 13 5 73 C E CENTRAL AK. 97 9 27 15 21 47.59 61 45.60N 150 34.86W 52.1 1.9 0.21 3.89 6.17 76 13 7 34 C 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 9 27 18 50 36.29 64 46.44N 147 45.15W 18.5 1.4 0.19 2.02 3.11 60 13 9 12 B E CENTRAL AK. 97 9 27 19 0 14.08 60 19.33N 152 7.63W 65.6 1.6 0.17 6.48 9.12 97 8 3 32 C E COOK INLET. 97 9 27 19 1 29.02 60 19.85N 150 51.08W 61.6 2.5 0.16 2.66 6.06 82 12 5 40 C E KENAI PEN. 97 9 27 19 3 48.15 64 54.32N 147 22.81W 15.0 1.2 0.14 3.42 5.51 79 11 5 9 C E CENTRAL AK. 97 9 27 19 40 38.85 62 16.93N 148 8.37W 39.6 2.4 0.12 3.23 11.83 68 12 10 54 D E CENTRAL AK. 97 9 27 21 11 32.55 64 47.11N 147 28.71W 13.4 1.0 0.08 4.68 13.24 82 8 4 21 D E CENTRAL AK. 97 9 27 22 57 29.25 64 56.61N 149 12.72W 16.1 1.5 0.18 3.03 6.91 150 14 8 41 C E CENTRAL AK. 97 9 27 23 36 0.94 65 45.01N 147 58.28W 8.5 2.5 0.42 5.06 4.71 134 15 7 89 C E N CENTRAL AK. 97 9 28 0 12 56.08 59 58.25N 141 26.32W 9.4 2.5 0.18 1.33 1.16 177 15 10 21 A E YAKUTAT BAY. 97 9 28 7 42 28.49 60 2.53N 152 14.13W 76.5 1.8 0.26 3.48 3.16 91 15 11 41 B E COOK INLET. 97 9 28 9 2 2.74 61 43.66N 149 32.68W 31.3 1.5 0.30 0.94 1.84 107 16 10 20 A E COOK INLET. 97 9 28 11 42 49.98 62 2.58N 149 21.57W 38.6 1.7 0.35 2.10 3.97 65 17 10 38 B E CENTRAL AK. 97 9 28 12 7 34.43 63 18.92N 145 25.78W 2.6 2.1 0.25 4.68 3.09 119 15 7 20 B E CENTRAL AK. 97 9 28 12 53 0.10 61 30.66N 146 43.12W 7.2 1.5 0.31 2.23 3.61 95 16 12 43 B E PR WILLIAM SOUND. 97 9 28 14 1 56.15 64 52.41N 147 13.93W 4.8 1.1 0.12 1.66 6.00 155 10 4 15 C E CENTRAL AK. 97 9 28 15 1 42.13 61 1.30N 150 27.79W 38.8 2.6 0.32 0.86 2.11 41 21 15 22 A E COOK INLET. 97 9 28 16 8 48.60 61 30.71N 152 4.66W 1.4 2.5 0.29 3.50 1.32 191 18 8 13 B E COOK INLET. 97 9 28 18 0 57.81 59 57.56N 141 27.54W 6.9 2.0 0.24 1.53 1.16 179 15 8 22 A E YAKUTAT BAY. 97 9 28 18 28 59.15 61 29.41N 150 45.25W 67.3 2.7 0.30 1.00 2.26 55 17 16 48 A E COOK INLET. 97 9 28 18 57 50.48 60 8.37N 152 37.74W 101.7 2.1 0.26 1.20 1.39 99 21 14 20 A E COOK INLET. 97 9 28 20 14 15.72 61 3.63N 147 42.50W 8.4 2.4 0.27 1.12 1.62 85 19 12 39 A E PR WILLIAM SOUND. 97 9 28 22 56 37.89 59 35.80N 152 16.00W 87.8 2.9 0.29 0.72 1.55 112 23 18 36 A E COOK INLET.