Issued: April 12, 1999 Prepared by: Lalitha Rao No. 14 - 99 The following is a list of significant earthquakes during the time period March 29 - April 4, 1999 March 30 at 00:44 UTC (Mar.29, 04:44 pm ADT), mb 4.2, 52 N 9', 178 W 38', depth = 164 km (102 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 87 mi (139 km) WNW of Adak 110 mi (178 km) ENE of Amchitka 189 mi (303 km) W of Atka 231 mi (372 km) E of Buldir Is 282 mi (454 km) W of Amukta Pass March 31 at 00:02 UTC (Mar.30, 04:02 pm ADT), ML 3.8, 60 N 60', 150 W 17', depth = 46 km (29 mi): A minor earthquake, felt sharply in Palmer and Wasilla, was located in the Kenai Peninsula region of Alaska about 20 mi ( 32 km) SW of Anchorage 22 mi ( 36 km) WNW of Hope 24 mi ( 39 km) SW of Elmendorf AFB 27 mi ( 43 km) SW of Fort Richardson 29 mi ( 47 km) E of Tyonek April 2 at 17:27 UTC (09:27 am ADT), mb 4.5, 51 N 16', 179 W 45', depth fixed at 33 km (21 mi): A light earthquake was located by NEIC in the Andreanof Islands region of Alaska about 57 mi ( 91 km) ESE of Amchitka 140 mi (225 km) WSW of Adak 200 mi (321 km) ESE of Buldir Is 247 mi (397 km) WSW of Atka 280 mi (451 km) ESE of Shemya Is April 4 at 07:01 UTC (April 3, 11:01 pm ADT), ML 4.3, 65 N 10', 170 W 50', depth = 4 km (2 mi): A light earthquake was located in eastern Siberia about 68 mi (109 km) SW of Little Diomede 86 mi (138 km) WSW of Wales 101 mi (162 km) NNE of Gambell 103 mi (166 km) N of Savoonga 127 mi (205 km) W of Brevig Mission _______________________________________________________________________________________________________________________________________________________ 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 29 1 46 7.21 63 3.01N 150 44.22W 120.2 3.0 0.24 1.77 2.97 81 16 11 50 B E CENTRAL AK. 1999 3 29 3 28 4.62 61 57.36N 148 52.67W 42.1 1.4 0.30 1.44 1.81 68 15 10 21 A E PR WILLIAM SOUND. 1999 3 29 3 58 7.16 61 26.55N 146 40.49W 11.6 1.7 0.22 1.02 2.59 59 16 9 39 B E PR WILLIAM SOUND. 1999 3 29 9 44 1.26 61 35.58N 147 58.95W 6.1 0.8 0.23 1.08 1.82 90 11 5 30 A E PR WILLIAM SOUND. 1999 3 29 10 53 9.53 62 17.32N 148 48.66W 52.2 1.8 0.15 1.15 5.21 62 15 9 58 C E CENTRAL AK. 1999 3 29 12 23 22.79 59 29.31N 152 49.86W 75.2 1.9 0.23 3.31 4.22 79 20 10 29 B E COOK INLET. 1999 3 29 14 45 2.51 61 14.41N 149 26.57W 42.2 2.1 0.20 1.54 2.74 59 15 7 6 B E COOK INLET. 1999 3 29 15 28 56.87 59 56.87N 152 47.01W 105.5 1.9 0.22 3.62 3.97 86 14 10 16 B E COOK INLET. 1999 3 29 16 6 4.98 62 57.23N 149 36.64W 81.7 1.5 0.21 3.65 5.37 63 16 6 3 C E CENTRAL AK. 1999 3 29 16 13 38.26 59 58.44N 152 46.06W 90.6 1.8 0.34 2.99 2.30 52 19 10 15 B E COOK INLET. 1999 3 29 17 6 51.21 59 4.22N 153 23.25W 77.2 1.9 0.26 2.93 4.18 92 15 8 21 B E COOK INLET. 1999 3 29 18 27 35.00 61 1.07N 146 32.77W 18.5 0.7 0.24 1.51 1.11 98 14 5 5 A E PR WILLIAM SOUND. 1999 3 29 19 1 59.13 54 9.57N 164 5.08W 64.5 2.9 0.21 4.67 4.27 215 20 14 48 B E UNIMAK IS. 1999 3 29 19 17 48.69 59 49.24N 153 25.30W 128.7 2.7 0.25 3.02 3.63 113 19 12 22 B E COOK INLET. 1999 3 29 20 5 45.09 60 42.12N 148 14.26W 27.7 1.3 0.22 2.12 1.53 86 15 5 18 A E KENAI PEN. 1999 3 29 20 15 39.33 60 15.73N 152 20.11W 81.6 1.5 0.28 3.84 6.95 75 15 4 30 C E COOK INLET. 1999 3 29 21 37 21.14 62 8.68N 148 55.14W 34.2 1.0 0.36 4.11 6.58 158 12 3 42 C E CENTRAL AK. 1999 3 30 0 44 37.01 52 9.36N 178 37.80W 163.5 4.2mb R ANDREANOF ISLS. 1999 3 30 1 18 38.83 61 58.60N 148 51.51W 13.6 1.2 0.25 2.05 1.49 67 13 7 23 A E PR WILLIAM SOUND. 1999 3 30 1 19 33.16 59 47.91N 152 56.33W 94.2 2.0 0.25 2.14 3.34 68 20 15 19 B E COOK INLET. 1999 3 30 7 24 35.54 53 53.58N 166 56.72W 0.4 0.9 0.21 2.69 28.14 207 7 7 7 D a FOX ISLS. 1999 3 30 7 34 23.26 60 57.27N 151 29.64W 63.7 2.8 0.28 2.19 3.12 58 19 13 27 B E KENAI PEN. 1999 3 30 12 44 44.20 58 11.65N 155 18.31W 1.5 1.3 0.10 1.12 1.78 180 8 6 2 A a ALASKA PEN. 1999 3 30 13 33 53.39 63 3.44N 151 2.12W 120.1 2.7 0.15 2.20 3.56 70 19 11 56 B E CENTRAL AK. 1999 3 30 18 44 11.13 54 41.99N 161 12.23W 8.9 3.3 0.25 2.68 4.16 196 15 9 65 B E ALASKA PEN. 1999 3 30 20 40 14.07 62 1.84N 150 8.03W 6.7 1.9 0.29 1.87 1.51 67 19 10 42 A E CENTRAL AK. 1999 3 30 23 28 17.73 60 4.56N 152 47.87W 102.1 2.2 0.26 2.53 2.90 59 14 11 9 B E COOK INLET. 1999 3 31 0 2 56.74 60 59.97N 150 16.88W 46.3 3.8 0.20 1.27 1.32 124 15 7 19 A E KENAI PEN. 1999 3 31 0 9 25.53 63 5.34N 144 16.00W 5.1 2.9 0.37 1.17 1.83 82 14 10 62 A E E CENTRAL AK. 1999 3 31 0 18 39.04 60 12.88N 147 48.38W 0.0 1.6 0.20 2.89 4.92 114 7 2 20 B E PR WILLIAM SOUND. 1999 3 31 0 28 40.00 63 3.17N 144 18.26W 0.0 2.4 0.34 1.08 2.20 66 14 7 60 A E E CENTRAL AK. 1999 3 31 0 29 20.65 62 28.10N 148 0.11W 11.1 1.7 0.13 1.53 4.41 55 15 6 75 B E CENTRAL AK. 1999 3 31 1 51 36.94 61 52.03N 151 20.89W 50.7 2.3 0.16 2.27 8.47 69 19 10 81 C E COOK INLET. 1999 3 31 2 42 20.13 60 48.73N 146 45.46W 15.0 1.1 0.26 1.71 1.96 138 12 8 13 A E PR WILLIAM SOUND. 1999 3 31 5 23 47.72 62 12.76N 149 15.65W 44.4 1.1 0.19 6.53 5.75 104 9 5 52 C E CENTRAL AK. 1999 3 31 6 39 10.03 61 0.16N 150 17.76W 43.1 2.8 0.21 1.17 2.27 56 16 9 19 A E COOK INLET. 1999 3 31 7 13 34.17 61 38.57N 144 57.77W 27.5 1.3 0.23 1.64 16.50 138 15 8 51 D E CAPE YAKATAGA. 1999 3 31 10 29 5.03 64 29.19N 147 21.21W 0.0 1.0 0.24 1.89 15.49 138 8 6 21 D E CENTRAL AK. 1999 3 31 11 39 14.52 60 6.56N 153 1.84W 124.5 2.3 0.15 2.96 3.95 70 15 9 5 B E COOK INLET. 1999 3 31 11 43 10.07 60 13.19N 152 38.66W 96.6 1.9 0.13 3.02 4.23 68 14 5 23 B E COOK INLET. 1999 3 31 12 2 51.67 60 17.71N 152 15.36W 85.1 1.9 0.17 2.35 3.22 83 14 11 32 B E COOK INLET. 1999 3 31 12 16 24.92 60 6.53N 151 50.23W 88.1 2.0 0.24 2.06 2.81 60 19 14 31 B E KENAI PEN. 1999 3 31 13 16 27.50 60 4.85N 151 46.11W 84.9 1.6 0.22 1.92 4.41 77 14 10 27 B E KENAI PEN. 1999 3 31 15 33 55.26 58 58.22N 152 33.69W 72.8 2.0 0.16 2.06 3.39 116 15 10 41 B E KODIAK IS REG. 1999 3 31 16 8 12.67 61 22.78N 147 19.01W 33.8 0.7 0.28 2.48 9.18 80 11 6 33 C E PR WILLIAM SOUND. 1999 3 31 16 30 23.97 61 49.05N 149 45.87W 49.1 1.6 0.36 1.68 3.28 108 15 8 20 B E COOK INLET. 1999 3 31 16 48 20.73 61 26.44N 146 51.12W 15.0 1.0 0.24 1.85 6.99 57 17 4 44 C E PR WILLIAM SOUND. 1999 3 31 17 0 43.42 61 26.46N 146 51.02W 12.7 1.3 0.22 1.12 3.06 58 15 6 44 B E PR WILLIAM SOUND. 1999 3 31 17 23 38.86 61 26.29N 146 51.34W 14.5 1.2 0.15 1.31 4.25 57 16 5 44 B E PR WILLIAM SOUND. 1999 3 31 21 22 41.88 59 49.59N 151 36.93W 48.8 1.6 0.32 3.22 7.53 74 12 10 19 C E KENAI 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 4 1 3 23 55.33 60 27.42N 152 2.41W 85.8 1.7 0.19 3.33 5.93 120 14 6 39 C E COOK INLET. 1999 4 1 3 32 47.72 61 24.11N 146 24.05W 22.0 1.8 0.27 1.24 2.99 59 16 8 28 B E PR WILLIAM SOUND. 1999 4 1 4 28 34.96 61 32.65N 146 37.80W 6.5 1.0 0.24 2.61 3.35 142 8 6 38 B E PR WILLIAM SOUND. 1999 4 1 12 47 30.59 62 47.00N 148 59.86W 17.0 1.4 0.29 2.14 2.13 66 15 7 39 A E CENTRAL AK. 1999 4 1 14 49 52.03 61 26.29N 152 19.85W 137.1 2.8 0.11 7.93 10.81 61 18 5 96 D E COOK INLET. 1999 4 1 15 38 4.74 62 18.73N 152 27.42W 134.4 2.6 0.29 3.68 11.12 60 17 5 114 D E CENTRAL AK. 1999 4 1 15 39 0.67 64 37.26N 149 26.75W 18.0 1.5 0.26 3.23 5.33 126 6 6 18 C E CENTRAL AK. 1999 4 1 17 41 15.29 59 48.64N 152 41.49W 90.6 2.0 0.17 1.64 3.56 62 21 12 27 B E COOK INLET. 1999 4 1 18 47 20.49 64 58.61N 147 27.44W 6.8 1.7 0.38 0.81 1.15 122 12 6 3 A E CENTRAL AK. 1999 4 2 0 3 21.28 61 21.97N 150 24.74W 43.7 1.5 0.28 2.89 5.93 164 13 10 43 C E COOK INLET. 1999 4 2 1 4 51.70 62 6.66N 149 33.24W 61.6 1.2 0.17 2.05 3.83 113 15 5 50 B E CENTRAL AK. 1999 4 2 13 42 23.76 61 34.05N 150 2.14W 38.8 1.7 0.24 2.56 2.90 117 15 7 12 B E COOK INLET. 1999 4 2 13 52 43.79 59 51.96N 153 32.56W 141.8 3.2 0.16 2.90 3.35 64 16 12 28 B E COOK INLET. 1999 4 2 14 25 12.03 60 57.42N 147 47.65W 3.1 1.9 0.36 0.78 1.88 71 15 10 31 A E PR WILLIAM SOUND. 1999 4 2 17 27 38.37 51 16.32N 179 45.24W 33.0N 4.5mb R ANDREANOF ISLS. 1999 4 2 18 29 42.63 62 58.01N 150 29.19W 99.6 2.7 0.12 1.48 2.49 65 20 13 43 A E CENTRAL AK. 1999 4 2 20 14 52.62 60 41.67N 147 15.57W 23.1 1.1 0.13 1.60 2.67 106 12 6 23 B E PR WILLIAM SOUND. 1999 4 2 20 26 58.66 59 59.43N 153 1.67W 1.0 0.4 0.06 3.06 3.05 199 3 4 3 B a COOK INLET. 1999 4 2 23 49 35.30 60 12.45N 151 22.86W 64.5 1.8 0.19 3.29 6.76 77 14 8 19 C E KENAI PEN. 1999 4 3 0 58 50.42 59 41.76N 152 0.50W 62.6 2.7 0.22 1.31 2.50 77 21 15 21 A E COOK INLET. 1999 4 3 6 54 11.34 60 9.14N 151 3.48W 69.9 2.1 0.21 1.44 3.29 100 17 11 18 B E KENAI PEN. 1999 4 3 9 22 47.18 61 34.07N 146 18.68W 39.7 3.1 0.31 1.04 1.63 54 16 5 22 A E PR WILLIAM SOUND. 1999 4 3 9 29 40.54 60 13.08N 153 17.03W 149.1 2.3 0.24 7.01 6.17 82 20 8 21 C E COOK INLET. 1999 4 3 13 32 21.89 61 28.49N 151 58.41W 17.9 1.9 0.21 4.62 5.56 140 15 9 91 C E COOK INLET. 1999 4 3 13 56 36.62 61 59.05N 149 48.92W 39.8 1.7 0.26 1.25 3.97 141 12 6 37 B E COOK INLET. 1999 4 3 13 56 48.05 60 6.82N 147 51.56W 15.8 2.7 0.16 3.38 3.73 80 18 6 8 B E PR WILLIAM SOUND. 1999 4 3 19 39 1.45 63 14.22N 150 21.44W 117.4 2.1 0.20 2.24 3.83 56 19 8 24 B E CENTRAL AK.