ssued: March 29, 1999 Prepared by: Lalitha Rao No. 13 - 99 The following is a list of significant earthquakes during the time period March 22 - 28, 1999 March 24 at 09:43 UTC (12:43 am AST), mb 4.4, 51 N 43', 179 W 18', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 74 mi (120 km) E of Amchitka 114 mi (184 km) W of Adak 208 mi (335 km) E of Buldir Is 221 mi (355 km) W of Atka 288 mi (463 km) E of Shemya Is March 25 at 14:48 UTC (05:48 am AST), mb 4.4, 51 N 43', 176 W 2', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 28 mi ( 46 km) ESE of Adak 85 mi (137 km) WSW of Atka 178 mi (286 km) WSW of Amukta Pass 214 mi (344 km) E of Amchitka 315 mi (508 km) WSW of Nikolski March 25 at 16:06 UTC (07:06 am AST), mb 4.3, 51 N 56', 176 W 9', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 22 mi ( 36 km) E of Adak 85 mi (137 km) WSW of Atka 179 mi (288 km) W of Amukta Pass 211 mi (339 km) E of Amchitka 315 mi (508 km) W of Nikolski March 28 at 22:23 UTC (01:23 pm AST), mb 4.7, 51 N 14', 177 W 46', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 65 mi (105 km) SW of Adak 141 mi (227 km) E of Amchitka 167 mi (269 km) WSW of Atka 259 mi (417 km) WSW of Amukta Pass 281 mi (452 km) ESE of Buldir Is _______________________________________________________________________________________________________________________________________________________ DATE TIME LATITUDE LONGITUDE DEPTH PREF. RMS SEH SEZ GAP PHASES MIN Q T REGION, OTHER MAGNITUDES, FELT REPORTS AND COMMENTS YEAR MO DY HR MN SEC DEG MIN DEG MIN KM MAG SEC. KM KM DEG P S DIS _______________________________________________________________________________________________________________________________________________________ 1999 3 22 1 36 3.21 60 55.77N 147 48.64W 7.6 1.2 0.42 0.86 0.96 59 15 10 28 A E PR WILLIAM SOUND. 1999 3 22 5 25 5.74 60 41.82N 151 35.03W 74.0 1.7 0.21 2.93 3.80 105 15 9 20 B E KENAI PEN. 1999 3 22 8 43 21.25 60 24.54N 151 12.38W 49.5 3.0 0.18 1.05 5.10 82 19 15 37 C E KENAI PEN. 1999 3 22 10 0 45.00 59 29.48N 152 49.70W 83.8 2.2 0.20 1.63 3.35 79 14 12 29 B E COOK INLET. 1999 3 22 10 5 30.66 60 6.10N 151 23.40W 44.5 3.6 0.22 0.77 2.28 71 20 16 8 A E KENAI PEN. 1999 3 22 12 31 8.94 62 9.96N 149 8.25W 2.9 1.6 0.43 4.05 5.14 149 10 5 65 C E CENTRAL AK. 1999 3 22 12 46 57.05 60 25.20N 151 11.58W 44.2 1.8 0.25 1.71 4.97 82 15 9 36 B E KENAI PEN. 1999 3 22 12 48 7.26 65 19.59N 150 40.46W 16.2 1.2 0.36 11.23 9.17 165 8 3 33 D E N CENTRAL AK. 1999 3 22 15 22 4.73 59 54.52N 153 21.07W 145.0 2.9 0.22 1.80 2.62 97 20 14 17 B E COOK INLET. 1999 3 22 15 27 50.58 60 25.91N 152 12.33W 81.1 2.7 0.38 2.17 3.21 78 20 16 31 B E COOK INLET. 1999 3 22 15 27 54.58 62 47.89N 150 48.15W 176.8 2.2 0.17 4.58 4.66 136 10 3 77 B E CENTRAL AK. 1999 3 22 17 21 3.10 62 59.23N 150 26.49W 103.6 2.5 0.15 1.54 2.46 68 17 9 41 A E CENTRAL AK. 1999 3 22 18 53 26.55 62 30.36N 150 0.06W 71.6 2.7 0.33 1.24 1.80 58 16 9 18 A E CENTRAL AK. 1999 3 22 23 21 40.20 59 37.96N 152 51.06W 97.8 2.3 0.20 1.90 3.36 77 15 11 21 B E COOK INLET. 1999 3 23 1 19 21.16 60 22.57N 151 22.39W 56.7 3.5 0.29 0.77 1.79 76 15 9 37 A E KENAI PEN. 1999 3 23 1 48 28.41 59 56.52N 153 28.49W 144.6 3.3 0.21 1.89 2.80 115 14 12 23 B E COOK INLET. 1999 3 23 10 59 58.66 64 37.77N 146 58.59W 16.2 1.7 0.27 1.21 1.67 92 14 7 16 A E CENTRAL AK. 1999 3 23 20 8 50.44 61 28.05N 147 9.10W 31.6 1.7 0.15 0.91 4.90 51 14 6 42 B E PR WILLIAM SOUND. 1999 3 23 22 17 37.10 58 58.30N 153 25.68W 79.8 2.7 0.11 7.39 5.51 183 9 6 13 C E KODIAK IS REG. 1999 3 23 22 56 57.20 61 23.61N 146 45.72W 9.3 1.9 0.19 0.85 3.14 62 14 12 37 B E PR WILLIAM SOUND. 1999 3 24 2 32 47.22 62 24.42N 151 7.20W 82.0 1.6 0.16 3.50 3.58 80 16 8 44 B E CENTRAL AK. 1999 3 24 3 6 0.44 61 47.02N 149 46.83W 38.8 2.5 0.25 0.91 1.99 63 20 14 16 A E COOK INLET. 1999 3 24 3 28 37.25 61 48.26N 149 49.43W 37.3 2.2 0.23 1.68 2.66 47 17 12 17 B E COOK INLET. 1999 3 24 5 18 8.30 61 41.35N 149 45.98W 49.7 1.1 0.20 2.59 3.27 175 9 5 35 B E COOK INLET. 1999 3 24 7 1 15.54 59 53.22N 153 2.85W 106.5 2.1 0.16 2.35 3.10 59 16 10 8 B E COOK INLET. 1999 3 24 7 27 8.72 65 3.10N 147 24.53W 5.1 1.8 0.24 1.55 3.90 119 12 8 7 B E N CENTRAL AK. 1999 3 24 7 43 52.58 63 11.82N 150 38.43W 129.7 2.3 0.17 2.62 3.53 75 17 7 33 B E CENTRAL AK. 1999 3 24 9 1 42.79 59 53.98N 152 45.84W 105.3 2.8 0.24 1.21 2.07 56 22 16 18 A E COOK INLET. 1999 3 24 9 43 53.57 51 43.44N 179 18.18W 33.0N 4.4mb R ANDREANOF ISLS. 1999 3 24 11 38 1.97 62 8.86N 149 40.99W 49.8 2.0 0.26 2.51 2.93 120 15 11 42 B E CENTRAL AK. 1999 3 24 11 47 54.21 60 56.72N 146 57.63W 25.6 0.9 0.27 1.06 1.66 66 14 6 10 A E PR WILLIAM SOUND. 1999 3 24 12 42 50.81 61 19.41N 150 18.98W 11.4 1.3 0.38 2.21 2.43 123 15 10 19 A E COOK INLET. 1999 3 24 16 27 54.54 60 13.58N 152 37.27W 104.3 2.5 0.15 2.24 3.69 107 14 10 23 B E COOK INLET. 1999 3 24 16 57 54.56 62 6.07N 151 12.53W 66.0 2.4 0.27 1.54 3.69 73 17 7 59 B E CENTRAL AK. 1999 3 24 17 49 54.00 63 14.50N 150 57.34W 13.7 2.7 0.21 1.44 1.05 98 17 8 35 A E CENTRAL AK. 1999 3 24 20 47 15.53 62 41.97N 149 12.59W 65.8 2.9 0.20 1.16 2.98 52 17 12 38 B E CENTRAL AK. 1999 3 24 20 52 11.41 60 15.86N 151 7.99W 56.1 1.8 0.12 3.37 3.79 91 11 4 26 B E KENAI PEN. 1999 3 24 21 1 49.35 61 52.61N 149 56.15W 4.3 1.6 0.28 1.73 2.47 117 16 5 25 A E COOK INLET. 1999 3 25 2 24 35.79 61 22.08N 146 50.79W 16.4 0.9 0.36 0.59 1.63 100 14 8 37 A E PR WILLIAM SOUND. 1999 3 25 4 24 4.19 60 3.32N 152 49.45W 105.8 2.2 0.19 2.14 3.43 66 15 8 8 B E COOK INLET. 1999 3 25 6 56 8.96 59 39.82N 152 4.53W 63.9 1.7 0.29 1.66 3.48 121 14 12 24 B E COOK INLET. 1999 3 25 7 10 24.72 59 34.15N 153 22.35W 118.8 2.4 0.18 1.81 1.79 106 18 14 12 A E COOK INLET. 1999 3 25 7 30 33.90 62 27.35N 147 46.25W 10.4 1.3 0.19 1.75 7.15 52 15 6 72 C E CENTRAL AK. 1999 3 25 8 30 16.97 59 25.34N 152 18.94W 68.5 2.7 0.21 0.80 3.17 104 22 15 46 B E COOK INLET. 1999 3 25 8 45 46.96 63 16.32N 151 8.85W 13.8 3.6 0.36 1.55 0.91 102 16 10 33 A E CENTRAL AK. 1999 3 25 9 11 13.03 60 57.98N 147 0.59W 22.4 1.3 0.23 1.10 1.75 81 12 6 11 A E PR WILLIAM SOUND. 1999 3 25 9 15 33.09 60 15.38N 140 50.07W 9.0 2.3 0.44 2.46 3.40 135 15 7 27 B E YAKUTAT BAY. 1999 3 25 9 30 48.17 63 14.16N 150 36.01W 133.4 2.1 0.19 2.31 3.44 71 17 9 29 B E CENTRAL AK. 1999 3 25 12 34 55.07 53 33.76N 165 50.52W 60.9 3.5 0.25 14.83 17.99 256 11 10 54 D E FOX ISLS. 1999 3 25 12 39 8.11 54 12.38N 162 27.28W 4.0 3.0 0.74 12.18 13.92 223 10 10 86 D E ALASKA PEN. _______________________________________________________________________________________________________________________________________________________ DATE TIME LATITUDE LONGITUDE DEPTH PREF. RMS SEH SEZ GAP PHASES MIN Q T REGION, OTHER MAGNITUDES, FELT REPORTS AND COMMENTS YEAR MO DY HR MN SEC DEG MIN DEG MIN KM MAG SEC. KM KM DEG P S DIS _______________________________________________________________________________________________________________________________________________________ 1999 3 25 12 47 1.61 61 33.80N 149 54.86W 54.5 1.4 0.21 2.72 3.99 151 10 9 40 B E COOK INLET. 1999 3 25 14 48 36.41 51 43.32N 176 2.46W 33.0N 4.4mb R ANDREANOF ISLS. 1999 3 25 16 6 53.44 51 55.62N 176 8.52W 33.0N 4.3mb R ANDREANOF ISLS. 1999 3 25 18 13 31.58 60 12.52N 151 58.49W 61.7 2.3 0.39 3.22 8.03 95 12 9 50 C E KENAI PEN. 1999 3 25 21 1 29.58 60 3.55N 153 1.42W 113.4 2.3 0.29 3.64 4.35 143 12 9 4 B E COOK INLET. 1999 3 25 22 15 28.38 54 12.96N 162 39.14W 25.0 2.9 0.19 3.61 99.00 261 8 8 87 D E ALASKA PEN. 1999 3 25 22 26 56.42 61 51.88N 150 45.02W 61.6 2.0 0.23 3.35 6.27 103 16 10 52 C E COOK INLET. 1999 3 25 23 9 7.67 58 28.54N 142 33.89W 10.0G 2.7 0.58 8.01 26.87 214 17 4 179 D E GULF OF ALASKA. 1999 3 25 23 10 20.54 58 10.65N 155 19.50W 0.4 1.1 0.08 1.83 10.77 186 6 4 4 D a ALASKA PEN. 1999 3 25 23 41 40.79 58 14.58N 142 43.99W 10.0G 3.0 0.20 12.50 36.08 220 18 3 205 D E GULF OF ALASKA. 1999 3 26 5 0 45.46 63 7.88N 149 40.42W 85.8 1.9 0.22 1.98 3.20 107 15 12 17 B E CENTRAL AK. 1999 3 26 5 12 3.45 61 13.70N 147 46.32W 27.3 2.3 0.23 0.85 1.65 45 17 13 5 A E PR WILLIAM SOUND. 1999 3 26 8 9 2.30 61 25.11N 146 42.09W 18.1 1.4 0.19 2.16 6.42 114 14 7 38 C E PR WILLIAM SOUND. 1999 3 26 9 31 39.91 61 24.85N 147 4.63W 12.6 1.4 0.29 0.67 1.77 50 16 12 45 A E PR WILLIAM SOUND. 1999 3 26 13 29 15.87 61 54.16N 148 27.95W 34.3 1.9 0.29 1.03 1.58 56 17 11 13 A E PR WILLIAM SOUND. 1999 3 26 13 53 23.87 58 25.76N 151 43.09W 23.6 2.7 0.23 3.78 3.43 162 17 8 44 B E KODIAK IS REG. 1999 3 26 14 46 33.81 56 6.39N 159 58.85W 145.6 2.8 0.17 4.56 6.25 156 15 3 91 C E ALASKA PEN. 1999 3 26 21 33 29.51 60 25.42N 151 5.46W 41.6 2.1 0.22 1.70 4.11 86 13 9 36 B E KENAI PEN. 1999 3 26 23 29 9.86 62 13.64N 148 38.06W 17.8 1.5 0.25 2.11 3.84 65 15 7 49 B E CENTRAL AK. 1999 3 27 3 28 38.17 60 40.97N 151 49.78W 74.6 1.6 0.24 4.51 5.11 153 16 8 33 C E KENAI PEN. 1999 3 27 9 59 19.63 61 33.44N 149 2.31W 37.0 0.7 0.16 2.59 4.63 90 12 5 6 B E COOK INLET. 1999 3 27 13 50 42.88 61 31.43N 147 27.56W 29.9 1.9 0.22 1.11 4.07 67 17 11 35 B E PR WILLIAM SOUND. 1999 3 27 14 29 10.84 61 42.98N 149 51.18W 40.0 1.6 0.29 2.71 3.01 112 16 6 7 B E COOK INLET. 1999 3 27 14 36 16.94 61 36.79N 150 58.52W 72.9 1.7 0.40 4.08 8.51 123 15 7 58 C E COOK INLET. 1999 3 27 17 56 0.94 62 2.90N 146 12.58W 20.5 2.3 0.33 0.95 1.40 70 16 8 7 A E CENTRAL AK. 1999 3 27 18 11 48.93 60 25.25N 147 47.79W 12.8 1.7 0.11 1.38 3.65 101 19 9 43 B E PR WILLIAM SOUND. 1999 3 27 19 9 59.23 60 10.08N 151 21.17W 46.0 1.7 0.23 2.53 3.02 79 15 6 14 B E KENAI PEN.