ssued: July6, 1999 Prepared by: Lalitha Rao No. 28 - 99 The following is a list of significant earthquakes during the time period June 28 - July4, 1999 June 29 at 13:39 UTC (05:39 am ADT), ML 3.4, 60 N 39', 152 W 12', depth = 88 km (54 mi): A minor earthquake was located in the Cook Inlet region of Alaska about 33 mi ( 53 km) WNW of Kenai 38 mi ( 61 km) NW of Kasilof 40 mi ( 65 km) NW of Clam Gulch 40 mi ( 65 km) WNW of Soldotna 45 mi ( 73 km) NNW of Ninilchik July 3 at 03:16 UTC (July 2, 07:16 pm ADT), ML 3.4, 63 N 42', 149 W 32', depth = 107 km (67 mi): A minor earthquake was located in the central region of Alaska about 21 mi ( 33 km) WSW of Healy 22 mi ( 35 km) WNW of Denali Park entrance 26 mi ( 42 km) NE of Eielson Visitor Ctr. 28 mi ( 45 km) NW of Cantwell 46 mi ( 73 km) ENE of Kantishna July 3 at 04:02 UTC (July 2, 08:02 pm ADT), ML 3.5, 55 N 4', 159 W 18', depth = 8 km (5 mi): A minor earthquake was located in the Alaska Peninsula region of Alaska about 51 mi ( 81 km) ESE of Sand Point 59 mi ( 94 km) S of Perryville 92 mi (148 km) SSW of Chignik 94 mi (152 km) SSW of Chignik Lagoon 99 mi (159 km) SE of Nelson Lagoon July 3 at 15:26 UTC (07:26 am ADT), ML 4.6, 61 N 22', 150 W 22', depth = 43 km (27 mi): A light earthquake , felt strongly in Anchorage and Palmer, was located in the Cook Inlet region of Alaska about 18 mi ( 30 km) WNW of Anchorage 21 mi ( 33 km) WNW of Elmendorf AFB 24 mi ( 38 km) WNW of Fort Richardson 27 mi ( 43 km) W of Eagle River 29 mi ( 46 km) SSW of Willow July 4 at 22:27 UTC (02:27 pm ADT), ML 3.4, 61 N 28', 149 W 48', depth = 47 km (29 mi): A minor earthquake was located in the Cook Inlet region of Alaska about 12 mi ( 20 km) WNW of Chugiak 13 mi ( 21 km) NW of Eagle River 14 mi ( 22 km) WSW of Wasilla 16 mi ( 25 km) N of Elmendorf AFB 16 mi ( 25 km) NNW of Fort Richardson _______________________________________________________________________________________________________________________________________________________ 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 6 28 2 25 54.59 61 43.64N 149 29.99W 39.5 1.8 0.35 0.73 2.63 80 16 14 62 B E COOK INLET. 1999 6 28 2 52 23.66 53 42.90N 163 56.19W 17.2 3.1 0.16 5.16 9.45 251 17 10 94 C E UNIMAK IS. 1999 6 28 2 55 26.75 59 27.50N 152 56.61W 85.5 1.4 0.28 9.01 9.81 86 7 4 27 C E COOK INLET. 1999 6 28 3 37 52.13 61 47.96N 149 47.71W 48.9 1.2 0.08 7.01 4.12 258 5 4 17 C E COOK INLET. 1999 6 28 3 38 0.04 61 56.42N 149 42.92W 65.7 1.7 0.10 4.11 3.97 86 14 6 33 B E COOK INLET. 1999 6 28 5 26 50.21 63 39.85N 148 15.53W 85.3 2.5 0.11 1.86 4.78 81 15 7 34 B E CENTRAL AK. 1999 6 28 7 56 39.49 60 38.01N 150 17.11W 40.8 1.5 0.10 1.71 1.63 72 18 16 14 A E KENAI PEN. 1999 6 28 8 52 59.56 54 28.07N 163 9.85W 66.6 2.7 0.16 5.76 6.91 224 17 15 46 C E UNIMAK IS. 1999 6 28 11 42 40.08 60 10.18N 152 3.66W 62.4 2.0 0.28 1.62 5.95 82 15 12 45 C E COOK INLET. 1999 6 28 11 48 19.41 61 12.82N 146 19.38W 15.3 1.9 0.30 0.70 1.27 44 15 7 9 A E PR WILLIAM SOUND. 1999 6 28 11 50 33.58 61 3.35N 146 24.64W 0.0 3.66 98.77 26.05 244 4 0 9 D E PR WILLIAM SOUND. 1999 6 28 12 25 19.26 60 13.29N 151 13.36W 50.3 1.7 0.15 1.81 3.29 87 16 12 20 B E KENAI PEN. 1999 6 28 13 52 23.64 61 31.50N 151 27.03W 70.9 2.9 0.15 2.16 3.06 141 16 12 38 B E COOK INLET. 1999 6 28 14 8 34.27 59 49.95N 151 35.79W 0.0 1.5 0.48 0.93 2.80 109 7 2 29 B E KENAI PEN. 1999 6 28 14 8 37.17 60 17.13N 151 2.46W 47.3 3.3 0.21 1.11 3.63 96 14 12 59 B E KENAI PEN. 1999 6 28 14 11 59.13 61 24.68N 150 0.27W 39.3 1.5 0.31 0.81 1.38 80 12 8 27 A E COOK INLET. 1999 6 28 15 24 41.63 61 12.69N 146 20.04W 11.8 1.0 0.71 0.54 0.62 43 13 6 9 A E PR WILLIAM SOUND. 1999 6 28 15 52 13.29 60 15.57N 151 3.88W 59.4 1.6 0.36 0.53 1.74 73 15 12 54 A E KENAI PEN. 1999 6 28 16 54 29.94 61 43.67N 151 51.30W 108.0 2.4 0.49 1.88 1.69 138 19 14 33 A E COOK INLET. 1999 6 28 17 9 46.68 58 37.06N 155 30.47W 136.0 2.1 0.19 3.12 1.20 144 17 10 24 B E ALASKA PEN. 1999 6 28 17 13 54.08 61 37.65N 150 41.47W 56.8 1.3 0.36 4.62 3.70 187 12 6 18 B E COOK INLET. 1999 6 28 21 19 40.73 60 7.66N 151 21.62W 45.6 1.9 0.29 0.72 2.28 78 9 8 48 A E KENAI PEN. 1999 6 28 22 59 4.16 54 57.46N 161 59.82W 5.7 1.8 0.12 2.67 3.92 165 10 9 17 B E ALASKA PEN. 1999 6 29 4 14 28.23 62 7.69N 150 12.95W 54.4 1.8 0.31 2.77 4.09 122 15 6 31 B E CENTRAL AK. 1999 6 29 5 42 19.86 59 27.90N 152 52.36W 83.1 2.2 0.19 1.86 4.26 78 17 13 29 B E COOK INLET. 1999 6 29 7 0 36.09 61 12.08N 146 21.99W 15.4 1.6 0.28 0.87 1.28 68 14 5 8 A E PR WILLIAM SOUND. 1999 6 29 7 30 40.16 61 27.48N 151 59.18W 7.7 1.0 0.10 2.40 4.65 307 9 7 11 B a COOK INLET. 1999 6 29 7 48 15.42 59 40.23N 153 6.25W 103.9 2.6 0.18 2.01 2.83 66 16 14 7 B E COOK INLET. 1999 6 29 8 52 33.60 60 18.55N 150 56.96W 60.0 2.4 0.26 0.91 2.61 100 16 14 35 B E KENAI PEN. 1999 6 29 9 40 45.17 60 59.41N 149 43.74W 40.7 1.3 0.21 1.54 1.10 100 14 8 11 A E KENAI PEN. 1999 6 29 12 31 41.26 62 56.78N 150 52.84W 98.6 1.9 0.21 3.88 3.84 70 17 6 63 B E CENTRAL AK. 1999 6 29 12 43 33.90 59 23.74N 152 37.64W 84.7 2.5 0.24 1.87 3.93 92 14 11 45 B E COOK INLET. 1999 6 29 12 57 24.96 60 41.17N 151 35.62W 70.6 2.4 0.28 1.02 3.58 72 19 14 46 B E KENAI PEN. 1999 6 29 12 57 24.87 60 41.10N 151 35.20W 72.3 2.1 0.38 0.76 1.94 70 17 15 47 A E KENAI PEN. 1999 6 29 13 39 40.09 60 38.77N 152 11.58W 87.5 3.4 0.25 1.28 2.22 62 17 14 14 A E COOK INLET. 1999 6 29 13 44 22.23 61 29.00N 152 1.41W 5.3 0.4 0.11 2.06 34.77 318 9 8 11 D a COOK INLET. 1999 6 29 13 54 5.07 60 6.11N 152 45.08W 94.8 2.1 0.29 2.01 1.51 51 18 12 12 A E COOK INLET. 1999 6 29 15 34 33.10 62 8.43N 153 10.01W 0.0 1.6 0.37 7.95 8.67 136 8 3 98 C E CENTRAL AK. 1999 6 29 18 56 36.90 60 25.63N 152 34.34W 100.2 1.8 0.21 3.39 4.32 75 15 8 11 B E COOK INLET. 1999 6 29 19 3 53.32 60 39.90N 150 27.48W 40.3 1.9 0.19 1.36 3.45 71 14 10 21 B E KENAI PEN. 1999 6 29 20 15 7.85 60 5.47N 148 0.59W 0.0 0.6 0.22 5.81 8.98 169 11 4 10 C E KENAI PEN. 1999 6 29 20 47 52.71 60 1.68N 152 35.75W 93.4 2.3 0.25 1.47 3.36 61 17 11 21 B E COOK INLET. 1999 6 29 21 23 8.75 60 11.24N 152 39.23W 105.7 2.2 0.22 3.31 2.18 108 16 9 21 B E COOK INLET. 1999 6 29 22 10 15.14 54 5.69N 164 5.19W 12.0 2.2 0.19 5.95 10.27 216 16 10 53 D E UNIMAK IS. 1999 6 29 22 18 51.19 60 9.29N 152 52.12W 121.1 2.5 0.27 1.91 3.03 71 15 10 10 B E COOK INLET. 1999 6 29 22 25 50.20 61 37.21N 150 43.21W 7.1 1.9 0.32 2.56 4.95 128 14 5 86 B E COOK INLET. 1999 6 29 22 25 50.50 61 41.02N 150 48.93W 57.2 2.0 0.34 1.51 2.49 131 14 10 25 A E COOK INLET. 1999 6 29 22 43 32.05 61 53.72N 144 12.19W 0.0 1.2 0.15 9.53 6.81 161 7 5 55 C E CAPE YAKATAGA. 1999 6 29 23 13 22.00 60 7.08N 151 34.16W 66.7 2.5 0.37 1.04 2.41 67 18 16 18 A E KENAI PEN. 1999 6 30 0 13 41.33 60 21.71N 152 39.18W 125.4 2.0 0.14 2.80 4.84 100 14 7 9 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 YEAR MO DY HR MN SEC DEG MIN DEG MIN KM MAG SEC. KM KM DEG P S DIS _______________________________________________________________________________________________________________________________________________________ 1999 6 30 0 35 26.42 60 45.89N 151 30.10W 69.4 1.6 0.13 3.28 4.76 70 15 14 54 B E KENAI PEN. 1999 6 30 2 40 20.57 61 33.56N 149 57.66W 37.5 2.0 0.40 0.56 1.38 63 16 14 11 A E COOK INLET. 1999 6 30 2 52 0.88 62 15.50N 148 16.01W 44.1 2.2 0.41 0.63 2.03 67 17 11 50 A E CENTRAL AK. 1999 6 30 3 32 6.95 61 6.57N 142 57.74W 15.1 0.9 0.28 0.64 99.00 154 4 4 34 D E CAPE YAKATAGA. 1999 6 30 5 18 28.27 61 32.87N 151 36.89W 82.1 1.8 0.22 2.93 1.65 155 16 9 33 B E COOK INLET. 1999 6 30 5 42 50.92 62 8.12N 149 32.05W 44.4 2.0 0.17 1.53 4.97 68 16 14 49 B E CENTRAL AK. 1999 6 30 5 55 10.33 61 33.24N 141 49.16W 8.4 1.6 0.09 4.30 8.91 194 11 6 64 C E CAPE YAKATAGA. 1999 6 30 6 6 0.42 62 11.28N 149 12.71W 45.8 1.8 0.16 1.82 4.33 78 16 11 49 B E CENTRAL AK. 1999 6 30 6 36 13.89 60 51.09N 151 37.93W 76.9 1.8 0.26 2.07 2.44 89 20 16 43 A E KENAI PEN. 1999 6 30 7 38 15.86 62 38.23N 151 16.28W 96.9 2.5 0.09 3.20 6.07 109 19 9 58 C E CENTRAL AK. 1999 6 30 8 4 0.26 62 2.83N 150 48.35W 60.7 2.4 0.12 1.37 3.78 97 21 15 39 B E CENTRAL AK. 1999 6 30 8 8 30.85 59 16.46N 153 5.52W 83.6 1.5 0.09 2.46 3.69 139 12 9 20 B E COOK INLET. 1999 6 30 10 49 13.18 60 26.27N 147 45.62W 11.8 1.1 0.22 1.10 3.02 94 15 11 45 B E PR WILLIAM SOUND. 1999 6 30 16 35 43.21 59 30.40N 152 52.11W 83.2 2.6 0.15 1.56 3.36 127 15 10 26 B E COOK INLET. 1999 6 30 17 5 8.58 61 14.32N 148 31.63W 14.9 0.0 0.19 0.80 0.79 105 7 4 20 A E PR WILLIAM SOUND. 1999 6 30 20 6 15.98 61 0.14N 150 35.06W 49.4 1.5 0.33 1.17 1.75 63 18 15 29 A E COOK INLET. 1999 6 30 20 15 53.53 60 28.11N 151 56.95W 92.1 2.1 0.47 1.16 1.33 163 15 14 28 A E KENAI PEN. 1999 6 30 20 18 32.37 59 2.06N 152 23.63W 62.9 2.3 0.26 0.74 1.57 130 13 10 47 A E COOK INLET. 1999 6 30 20 44 36.05 59 41.59N 153 3.76W 113.7 2.4 0.16 1.48 1.81 78 16 5 10 A E COOK INLET. 1999 6 30 21 19 32.73 60 58.36N 151 50.65W 76.8 1.1 0.12 5.79 2.27 203 8 4 26 C E KENAI PEN. 1999 6 30 23 36 54.78 60 9.33N 147 51.17W 12.2 1.2 0.21 1.99 2.68 112 9 7 13 B E PR WILLIAM SOUND. 1999 7 1 12 48 44.77 61 9.28N 147 19.53W 11.7 1.0 0.15 0.79 1.76 82 7 6 24 A E PR WILLIAM SOUND. 1999 7 1 14 45 37.71 61 22.93N 146 31.37W 19.9 1.9 0.24 1.49 2.32 57 14 7 30 A E PR WILLIAM SOUND. 1999 7 1 15 7 39.14 63 41.04N 147 3.67W 17.1 2.1 0.34 1.78 1.73 59 16 7 60 A E CENTRAL AK. 1999 7 1 15 43 39.22 60 48.76N 147 15.84W 23.8 1.5 0.24 0.75 1.37 63 14 8 12 A E PR WILLIAM SOUND. 1999 7 1 19 52 19.19 59 53.43N 153 33.84W 136.3 2.9 0.24 2.40 2.86 183 14 10 29 B E COOK INLET. 1999 7 2 1 56 46.25 62 8.18N 150 28.25W 56.4 2.3 0.33 4.92 3.39 223 14 5 32 B E CENTRAL AK. 1999 7 2 3 2 46.61 60 18.01N 152 44.79W 112.8 2.6 0.22 3.16 3.12 175 14 10 27 B E COOK INLET. 1999 7 2 5 9 32.78 54 30.17N 161 38.82W 10.0 2.3 0.25 7.64 8.76 256 7 7 65 C E ALASKA PEN. 1999 7 2 5 33 26.71 54 8.22N 164 13.43W 16.2 2.1 0.10 2.17 3.39 241 12 11 44 B E UNIMAK IS. 1999 7 2 7 31 32.18 61 31.09N 146 42.06W 30.9 2.4 0.37 0.65 2.15 55 15 11 42 A E PR WILLIAM SOUND. 1999 7 2 7 45 13.64 54 14.54N 161 34.59W 20.0 2.8 0.40 5.24 10.58 276 13 7 92 D E ALASKA PEN. 1999 7 2 8 19 34.57 59 59.75N 153 1.27W 121.2 2.0 0.14 3.98 4.43 83 14 6 4 B E COOK INLET. 1999 7 2 13 39 51.54 63 23.40N 151 20.89W 13.9 2.4 0.27 3.10 5.47 176 11 8 185 C E CENTRAL AK. 1999 7 2 17 21 39.03 63 21.89N 147 42.32W 75.1 2.5 0.36 1.19 3.80 61 16 7 58 B E CENTRAL AK. 1999 7 2 18 38 1.37 63 13.96N 150 29.09W 126.0 3.2 0.15 2.40 3.14 151 15 9 26 B E CENTRAL AK. 1999 7 3 3 16 23.87 63 41.71N 149 31.75W 107.4 3.4 0.56 0.92 1.95 81 15 7 46 A E CENTRAL AK. 1999 7 3 3 16 22.58 63 39.11N 149 29.61W 75.0 3.0 0.37 5.66 99.00 115 17 0 299 D E CENTRAL AK. 1999 7 3 3 35 41.09 60 50.66N 147 0.61W 17.4 0.3 0.12 3.03 2.23 93 6 5 6 B E PR WILLIAM SOUND. 1999 7 3 4 2 36.08 55 4.06N 159 18.30W 7.8 3.5 0.20 6.87 5.11 242 14 5 54 C E ALASKA PEN. 1999 7 3 9 15 35.66 60 28.86N 147 21.78W 6.9 1.3 0.15 2.85 4.87 123 15 5 47 B E PR WILLIAM SOUND. 1999 7 3 15 26 7.44 61 21.72N 150 21.75W 43.0 4.6 0.28 0.77 1.20 58 17 4 24 A E COOK INLET. 1999 7 3 15 32 32.44 61 24.56N 150 25.32W 43.8 1.7 0.32 0.73 1.29 117 14 9 18 A E COOK INLET. 1999 7 3 15 36 18.28 61 24.35N 150 22.12W 42.9 1.9 0.43 0.71 1.39 75 15 12 21 A E COOK INLET. 1999 7 3 15 36 17.47 61 24.78N 150 28.00W 44.0 1.8 0.24 1.15 1.65 91 15 11 41 A E COOK INLET. 1999 7 3 16 0 41.21 58 56.44N 153 2.85W 67.7 2.1 0.26 0.58 0.99 110 14 9 34 A E KODIAK IS REG. 1999 7 3 17 22 27.47 61 21.47N 150 23.23W 50.8 1.7 0.34 0.96 1.39 80 16 12 37 A E COOK INLET. 1999 7 3 18 16 51.86 61 3.94N 146 17.41W 19.9 0.5 0.35 0.76 0.56 77 7 6 8 A E PR WILLIAM SOUND. 1999 7 3 18 20 48.71 60 11.97N 153 3.53W 133.8 2.1 0.44 1.56 1.07 86 16 6 14 A E COOK INLET. 1999 7 3 18 34 16.07 61 37.93N 149 54.74W 47.6 0.22 4.99 5.94 174 6 5 42 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 YEAR MO DY HR MN SEC DEG MIN DEG MIN KM MAG SEC. KM KM DEG P S DIS _______________________________________________________________________________________________________________________________________________________ 1999 7 3 20 5 11.23 61 17.34N 146 49.49W 32.1 1.3 0.41 0.63 1.70 44 16 10 29 A E PR WILLIAM SOUND. 1999 7 3 21 17 30.01 61 25.62N 146 30.84W 20.6 0.6 0.43 0.59 3.16 63 10 5 33 B E PR WILLIAM SOUND. 1999 7 3 22 57 26.11 61 23.08N 150 24.56W 40.5 1.1 0.40 1.12 2.38 149 10 7 48 A E COOK INLET. 1999 7 3 23 11 20.42 61 34.78N 150 6.12W 40.0 1.6 0.49 0.57 1.25 56 18 14 14 A E COOK INLET.