DISCLAIMER -- THIS IS NOT AN EARTHQUAKE PREDICTION OR WARNING! The commentary provided with these map(s) is for INFORMATIONAL USE ONLY, and SHOULD NOT be construed as an earthquake prediction, warning, or advisory. Responsibility for such warnings rests with the Office of Emergency Services of the State of California. PLEASE REMEMBER -- THESE ARE PRELIMINARY DATA Releasing these summaries on a timely basis requires that the data, analysis, and interpretations presented are PRELIMINARY. Of necessity they can only reflect the views of the seismologists who prepared them, and DO NOT carry the endorsement of the U.S.G.S. Thus while every effort is made to ensure that the information is accurate, nothing contained in this report is to be construed as and earthquake prediction, warning, advisory, or official policy statement of any kind, of the U.S. Geological Survey, or the U.S. Government. FOR QUESTIONS CONCERNING THIS REPORT Send e-mail to michael@andreas.wr.usgs.gov DO NOT SEND EMAIL TO weekly@garlock.wr.usgs.gov It will not be read. Seismicity Report for Northern California, the Nation, and the World for the week of June 6 - 12, 1996 Stephen R. Walter U.S. Geological Survey 345 Middlefield Rd. MS-977, Menlo Park, CA 94025 San Francisco Bay Area During the seven-day period ending at midnight on Wednesday, June 12, 1996 the U.S. Geological Survey office in Menlo Park recorded 21 earthquakes of magnitude one (M1) and greater within the San Francisco Bay area shown in Figure 1. Three were as large as M2. This total compares to 30 earthquakes during the previous seven-day period (May 30 - June 5), six of which were as large as M2.0. The largest earthquake in the area was a M2.4 on the creeping San Andreas about nine miles southeast of Hollister (#4/1). Only slightly smaller was a M2.3 on the Hayward fault in eastern Hayward (#2/1). Neither event was reported to have been felt. Minor quakes worth noting include a M1.4 on the San Andreas just offshore from Pacifica (#1/1) and a M1.8 beneath the South Bay about four miles north of the San Mateo bridge (#5/1). Northern & Central California The northern Coast Range was the most active area during the past week. The Geysers geothermal area led the way with a pair of M3 events last Saturday and half a dozen other quakes as large as M2 (#2/2). South of the Geysers a pair of M2 events occurred on the Rogers Creek fault, the first a M2.2 about six miles northwest of Santa Rosa (#1/2), the second a M2.1 about five miles west of Glen Ellen (#3/2). To the north, a M2.3 occurred on the central Maacama fault about six miles southeast of Willits (#8/2). The Cape Mendocino area was unusually quiet with only one earthquake as large as M2: a M2.0 events that occurred about 18 kilometers beneath the coast about 13 miles southwest of Eureka (#6/2). To the east a pair of M2 events occurred beneath the western slopes of the Cascade Range (#9/2). The first was a M2.7 Wednesday morning that was located about 25 miles east of Redding, the second a M2.7 Wednesday evening was located 15 miles east of Redding. The eastern Sierra Nevada experienced a M2.1 about 21 miles north of Truckee (#5/2), a M3.5 in the Markleeville area (#4/2), and a M2.5 in the northern Owens Valley just six miles southeast of Bishop (#7/2). Long Valley Caldera The only activity within the caldera was a cluster of small earthquakes occurred beneath the junction of Highway 395 and Mammoth Lakes road on Sunday (#1/3). Eight of the earthquakes were as large as M2, the largest a M2.6 that was apparently not felt locally. South of the caldera two M3 events occurred on Tuesday and Wednesday, both located just south of Red and White Mountain (#2,#3/3). USA Seismicity (June 3 - 12) A Ms7.7 earthquake occurred about 60 miles southwest of the central Aleutian Island of Adak on Saturday evening (#1/4). Though strongly felt throughout the island, the earthquake produced no significant damage or injuries. It generated a tsunami warning throughout the Pacific region that was later cancelled. The highest wave was only about three feet above normal tides on the island of Adak itself. The earthquake was followed by at least 30 aftershocks as large as M5, including one M7.2 earthquake that was located just 30 miles southwest of Adak. The only notable activity in the lower 48 states, outside of California, was a M3.1 east of Seattle, an aftershock to a M5.5 on May 3. The Planet Earth (June 3 - 12) The Pacific margin was quite active during the week. In addition to the pair of major quakes on the Aleutian trench (#5/6), a M7.0 occurred near the northern Philippine island of Samar (#6/5). Though widely felt, no major damage or injuries were reported. M6.0 earthquakes were reported in the Mariana Islands (#3/5) and along the central Indian ridge (#1/5). Only slightly smaller than these two earthquakes was a M5.9 event in central China that was produced by the most recent of China's nuclear tests (#2/5). Centered at the Chinese test site of Lop Nor, the blast was estimated by Australian seismologist to have had a yield of between 20 and 80 kilotons. TABLE 1. Northern & Central California Seismicity (M>1.0) --ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH N N RMS ERH ERZ DUR YR MON DA HRMN SEC DEG MIN DEG MIN KM RD S SEC KM KM REMKS MAG 96 JUN 6 714 53.25 38 43.96 119 36.44 8.16 16 .09 .6 1.5 WAK 1.9 96 JUN 6 1219 10.67 37 53.00 122 16.27 4.05 18 3 .16 .3 .8 HAY 1.3 96 JUN 6 1346 10.25 37 52.09 122 8.76 8.62 15 2 .10 .4 .8 CON 1.5 96 JUN 6 1753 29.58 36 40.63 121 18.13 3.87 13 .06 .3 .9 STN 1.0 96 JUN 6 1825 4.89 37 18.62 122 4.30 4.01 19 .05 .2 .4 BLM 1.4 96 JUN 6 1907 51.76 38 49.00 119 40.96 5.72 12 .10 .5 1.7 WAK 2.1 96 JUN 6 2150 53.18 36 35.23 121 11.20 3.34 7 .04 .4 .6 PIN 1.0 96 JUN 6 2207 37.58 38 50.20 122 52.67 2.24 8 .07 .4 1.1 GEY 1.3 96 JUN 6 2358 32.06 37 38.30 118 53.51 5.73 33 .09 .3 .4 SMO 2.4 96 JUN 7 7 53.94 37 37.77 118 53.34 5.57 14 .08 .4 .5 SMO 1.5 96 JUN 7 36 9.43 37 16.82 121 39.40 5.54 29 1 .07 .2 .7 SFL 1.5 96 JUN 7 328 58.81 38 48.35 122 48.08 2.82 8 .02 .4 .5 GEY 1.1 96 JUN 7 446 58.33 38 3.40 118 57.96 2.41 8 1 .15 .6 4.3 MOL * 1.7 96 JUN 7 517 22.85 38 49.35 122 47.76 3.60 8 .04 .4 .8 GEY 1.3 96 JUN 7 704 29.62 37 32.37 118 27.33 9.55 14 .06 .3 .8 CHV 1.1 96 JUN 7 716 55.34 38 50.80 122 49.72 1.53 23 .06 .2 .5 GEY 2.1 96 JUN 7 728 13.79 38 50.85 122 49.77 0.81 7 .05 .4 1.1 GEY 1.0 96 JUN 7 758 25.08 37 38.70 118 52.87 8.61 10 .11 1.0 .9 SMO 1.0 96 JUN 7 814 18.59 36 47.55 121 18.30 10.14 11 1 .07 .5 .8 PAI .8 96 JUN 7 829 23.82 37 38.06 119 23.01 10.67 35 .12 .4 2.0 KAI 2.1 96 JUN 7 837 17.82 38 48.06 122 48.79 3.95 17 .03 .2 .5 GEY 1.7 96 JUN 7 842 2.86 37 37.98 118 48.29 3.50 12 1 .12 .4 1.1 HCF 1.7 96 JUN 7 843 43.77 37 38.02 119 22.81 6.59 9 1 .09 .710.0 KAI - 1.6 96 JUN 7 1013 37.18 37 37.89 118 56.61 4.87 8 .07 .6 1.3 SMO 1.0 96 JUN 7 1245 52.96 37 32.49 118 25.96 6.85 9 1 .06 .4 .6 CHV 1.2 96 JUN 7 1420 21.93 37 38.07 118 53.45 6.23 17 .10 .5 .6 SMO 1.4 96 JUN 7 1423 24.68 37 38.46 118 53.39 5.06 11 .13 .6 .8 SMO 1.3 96 JUN 7 1643 47.20 37 35.15 118 28.55 7.63 10 .03 .4 .8 CHV 1.1 96 JUN 7 1736 12.16 38 47.82 122 44.36 2.10 15 .05 .2 .6 GEY 1.7 96 JUN 7 1806 8.66 37 37.76 118 53.44 5.70 12 .08 .5 .6 SMO 1.5 96 JUN 7 1822 21.02 38 50.34 122 49.21 2.67 13 .04 .3 .7 GEY 1.5 96 JUN 7 1854 16.37 37 38.97 118 52.41 5.01 7 .15 .7 1.2 SMO 1.0 96 JUN 7 2119 48.77 37 31.16 118 24.89 8.06 10 .02 .4 .7 CHV 1.1 96 JUN 7 2229 40.05 37 37.95 118 53.40 6.12 16 .09 .4 .5 SMO 1.1 96 JUN 7 2230 7.53 37 37.77 118 53.41 5.94 16 .09 .4 .5 SMO 1.5 96 JUN 7 2315 58.60 37 12.34 121 35.49 7.30 31 .10 .2 .7 SFL 1.5 96 JUN 8 26 48.16 36 5.39 121 28.71 3.00 28 1 .10 .3 1.7 SUR 1.9 96 JUN 8 118 33.33 38 30.97 122 44.77 4.70 46 3 .14 .2 .7 ROG 2.2 96 JUN 8 143 39.63 38 51.08 122 49.47 1.58 12 .03 .3 .8 GEY 1.1 96 JUN 8 143 47.35 38 50.83 122 49.99 0.88 43 .25 .3 1.4 GEY 2.7 96 JUN 8 144 15.91 37 38.12 119 24.09 7.73 8 .07 .7 9.6 KAI - 1.6 96 JUN 8 145 19.49 38 51.19 122 48.73 0.04 7 .07 .6 1.8 GEY * 1.4 96 JUN 8 145 49.09 38 50.64 122 49.03 5.10 10 .07 .4 1.3 GEY 1.6 96 JUN 8 147 35.82 38 50.98 122 49.38 2.12 15 .05 .3 1.1 GEY 1.8 96 JUN 8 149 5.39 38 51.08 122 49.63 0.71 7 .05 .3 1.0 GEY 1.5 --ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH N N RMS ERH ERZ DUR YR MON DA HRMN SEC DEG MIN DEG MIN KM RD S SEC KM KM REMKS MAG 96 JUN 8 200 32.39 38 51.23 122 49.04 1.17 8 .05 .3 1.0 GEY 1.3 96 JUN 8 351 35.59 38 56.07 122 38.31 3.02 23 .12 .3 .9 KON 2.2 96 JUN 8 447 45.20 38 49.08 122 48.38 3.88 9 .04 .3 .7 GEY 1.3 96 JUN 8 457 47.86 40 20.83 124 25.45 18.17 7 .06 2.0 .8 MEN 1.9 96 JUN 8 604 39.89 37 27.34 118 36.22 8.24 11 .06 .5 1.0 RVL 1.0 96 JUN 8 701 21.64 38 48.70 122 48.56 4.56 17 .04 .2 .6 GEY 1.7 96 JUN 8 838 56.97 37 36.55 118 48.94 2.42 7 .02 1.6 1.2 HCF 1.6 96 JUN 8 841 9.78 38 47.12 122 45.60 2.03 33 .15 .2 .7 GEY 2.3 96 JUN 8 901 4.78 36 24.47 120 58.98 6.04 15 .04 .3 .7 BIT .9 96 JUN 8 934 25.26 38 55.93 122 38.31 3.17 10 1 .09 .4 .8 KON 1.7 96 JUN 8 950 50.28 37 39.32 118 56.35 5.16 26 .12 .3 .4 SMO 2.2 96 JUN 8 1007 1.49 37 21.36 121 43.23 8.24 30 5 .05 .2 .5 ALU 1.5 96 JUN 8 1007 5.83 38 49.92 122 48.94 1.50 17 1 .07 .2 .6 GEY 1.7 96 JUN 8 1024 25.08 37 31.13 118 47.16 6.65 22 .08 .3 .5 MOR 1.4 96 JUN 8 1111 38.33 37 30.74 118 50.01 8.95 19 .10 .4 .8 MOR 1.3 96 JUN 8 1118 49.00 36 0.78 120 33.42 5.14 10 .03 .5 1.0 SLA 1.2 96 JUN 8 1158 21.61 36 8.31 120 14.11 4.36 17 1 .14 .6 1.8 COA 1.4 96 JUN 8 1337 55.23 38 49.55 122 50.20 2.05 13 .05 .3 .6 GEY 1.5 96 JUN 8 1339 51.81 37 37.04 118 53.08 4.84 13 .08 .5 .7 SHE 1.6 96 JUN 8 1405 16.08 38 47.17 122 46.17 2.74 46 .12 .2 .6 GEY 3.2 96 JUN 8 1416 14.10 37 36.86 118 50.99 2.29 10 .07 .3 .4 SMO 1.5 96 JUN 8 1428 38.93 38 49.02 122 48.49 3.61 7 .02 .4 .7 GEY 1.3 96 JUN 8 1436 41.88 40 32.93 122 13.44 23.34 7 .04 .8 1.7 SHA * 1.8 96 JUN 8 1533 42.85 37 31.17 118 47.16 6.60 24 .07 .3 .5 MOR 1.4 96 JUN 8 1559 58.50 37 15.18 121 38.19 4.44 11 .04 .3 1.9 SFL 1.3 96 JUN 8 1710 16.38 38 47.43 122 46.14 4.40 7 .02 .3 1.1 GEY 1.2 96 JUN 8 1719 47.11 36 16.35 120 23.22 9.53 7 .06 .6 .4 COA 1.4 96 JUN 8 1814 47.85 37 40.49 118 49.05 2.39 13 .08 .4 .6 EMO 1.5 96 JUN 9 28 10.34 38 22.50 122 36.40 7.49 42 .13 .2 .5 ROG 2.1 96 JUN 9 38 26.32 38 48.85 122 48.59 3.19 47 .13 .2 .5 GEY 3.2 96 JUN 9 49 22.48 38 48.61 122 48.43 3.55 9 .03 .3 .6 GEY 1.2 96 JUN 9 53 0.39 38 49.38 122 48.36 4.02 8 .01 .4 .8 GEY 1.2 96 JUN 9 114 44.11 38 48.19 122 47.66 0.07 26 .46 .6 1.2 GEY * 2.1 96 JUN 9 118 23.12 38 48.30 122 48.67 2.79 37 .28 .4 .8 GEY 2.4 96 JUN 9 133 1.10 37 20.24 118 22.22 14.08 7 .05 .9 2.4 OWV 1.0 96 JUN 9 245 37.73 37 38.67 118 52.72 6.86 8 .06 .6 1.0 SMO 1.3 96 JUN 9 334 16.22 38 44.05 119 38.05 5.04 57 .13 .3 1.0 WAK 3.4 96 JUN 9 617 14.65 38 48.93 122 48.49 4.42 7 .01 .4 .7 GEY 1.2 96 JUN 9 624 41.25 38 43.77 119 38.01 5.84 28 2 .12 .5 1.9 WAK 2.6 96 JUN 9 642 52.16 38 49.48 122 48.21 3.71 8 .05 .4 .6 GEY 1.5 96 JUN 9 648 13.84 38 48.89 122 48.48 4.24 7 .03 .6 .7 GEY 1.2 96 JUN 9 718 24.75 37 38.26 118 54.86 7.92 30 .08 .3 .4 SMO 2.3 96 JUN 9 722 14.30 37 39.31 118 54.15 6.20 7 .08 .9 1.3 DOM 1.1 96 JUN 9 726 55.02 37 38.69 118 54.30 9.40 12 .08 .6 1.0 SMO 1.3 96 JUN 9 731 50.27 37 38.21 118 54.40 7.26 15 .13 .6 .9 SMO 1.4 --ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH N N RMS ERH ERZ DUR YR MON DA HRMN SEC DEG MIN DEG MIN KM RD S SEC KM KM REMKS MAG 96 JUN 9 747 23.27 37 39.17 118 54.50 7.79 7 .03 .8 1.2 DOM 1.1 96 JUN 9 757 57.90 37 25.02 121 41.86 6.31 14 .05 .3 1.0 ALU 1.3 96 JUN 9 759 17.07 37 38.42 118 54.91 8.08 21 2 .11 .4 .6 SMO 1.6 96 JUN 9 804 16.85 37 38.52 118 54.85 7.47 30 .07 .3 .4 SMO 2.4 96 JUN 9 816 36.01 37 38.26 118 54.95 8.13 28 .10 .3 .4 SMO 2.1 96 JUN 9 817 25.89 37 38.24 118 54.90 8.62 25 1 .08 .3 .5 SMO 2.0 96 JUN 9 819 40.59 37 37.81 118 54.61 7.58 11 .10 .6 .8 SMO 1.3 96 JUN 9 821 16.20 39 37.10 120 3.80 0.39 30 .19 .5 2.8 WAK 2.2 96 JUN 9 824 18.09 37 38.35 118 54.94 7.97 35 .08 .3 .4 SMO 2.6 96 JUN 9 825 22.65 37 38.47 118 54.62 9.02 24 1 .11 .4 .6 SMO 2.0 96 JUN 9 827 35.37 37 38.71 118 54.27 8.90 9 .08 .6 1.1 SMO 1.3 96 JUN 9 840 44.82 37 38.31 118 55.13 8.49 27 1 .09 .3 .5 SMO 1.8 96 JUN 9 845 1.50 37 38.30 118 54.88 8.04 26 1 .10 .3 .5 SMO 2.0 96 JUN 9 850 6.74 38 48.65 122 48.34 3.27 8 .03 .4 .7 GEY 1.3 96 JUN 9 853 39.20 37 38.44 118 54.61 7.32 21 1 .12 .4 .7 SMO 1.7 96 JUN 9 859 39.72 37 38.24 118 55.01 8.69 26 1 .09 .3 .5 SMO 1.5 96 JUN 9 911 51.27 37 38.37 118 54.46 8.13 8 .07 .8 1.2 SMO 1.0 96 JUN 9 916 40.64 37 38.44 118 54.53 9.16 8 .07 1.1 1.5 SMO 1.2 96 JUN 9 920 54.94 37 38.34 118 54.31 8.20 11 .09 .6 1.0 SMO 1.3 96 JUN 9 1002 59.04 36 38.07 121 13.16 7.39 35 2 .07 .2 .5 STN 1.6 96 JUN 9 1039 1.39 38 47.59 122 48.20 4.26 8 .02 .4 .8 GEY 1.2 96 JUN 9 1259 44.56 37 38.31 118 54.42 7.56 20 .11 .4 .6 SMO 1.7 96 JUN 9 1311 50.71 37 38.30 118 54.39 7.09 12 .11 .6 .9 SMO 1.3 96 JUN 9 1329 38.53 38 46.68 119 41.33 9.14 11 2 .07 .4 1.0 WAK 1.3 96 JUN 9 1341 48.58 38 48.01 122 48.59 4.43 8 .01 .3 .8 GEY 1.2 96 JUN 9 1406 2.19 37 40.02 122 31.61 9.78 19 1 .04 .3 .5 SFP 1.3 96 JUN 9 1448 43.70 37 38.75 118 46.44 0.03 9 .46 1.0 1.7 EMO * 1.1 96 JUN 9 1502 57.60 36 45.38 121 25.62 7.22 14 2 .11 .4 .6 SJB 1.0 96 JUN 9 1649 27.48 36 14.73 120 48.31 6.12 15 .10 .4 .6 BIT 1.6 96 JUN 9 1802 47.45 37 38.42 118 54.63 7.57 22 .10 .3 .6 SMO 1.8 96 JUN 9 1811 0.23 37 39.74 122 2.70 4.33 13 3 .04 .3 .5 HAY 3.0 96 JUN 9 1927 26.67 38 48.93 122 48.67 4.15 7 .02 .4 .5 GEY 1.0 96 JUN 9 1939 42.79 37 33.02 118 48.47 5.40 30 .08 .3 .4 MOR 1.7 96 JUN 9 1940 9.47 37 33.34 118 48.42 4.60 14 .09 .5 .9 MOR 1.9 96 JUN 9 1941 57.94 37 33.19 118 48.42 4.51 35 5 .11 .3 .5 MOR 1.8 96 JUN 9 1943 36.34 40 16.36 124 26.34 9.42 7 1 .02 1.0 .5 MEN 1.9 96 JUN 9 2007 19.72 36 11.19 120 6.78 11.87 8 2 .18 2.3 1.6 COA 1.5 96 JUN 9 2113 14.90 37 38.52 118 54.67 6.33 9 .03 .4 .6 SMO 1.4 96 JUN 9 2135 27.10 37 38.03 119 22.91 8.76 31 2 .10 .4 2.6 KAI 1.8 96 JUN 9 2138 58.54 38 32.80 122 17.32 4.19 35 1 .22 .3 .8 GVL 2.0 96 JUN 9 2146 33.27 38 4.37 118 51.88 5.24 35 1 .12 .4 5.4 MOL 2.1 96 JUN 9 2153 28.13 37 38.18 118 54.89 8.07 25 .09 .3 .4 SMO 1.9 96 JUN 9 2219 8.01 37 39.22 118 54.41 7.71 8 .04 .7 1.0 DOM 1.1 96 JUN 10 50 7.93 37 37.63 118 52.18 2.48 10 .12 .4 .7 SMO 1.7 96 JUN 10 53 58.91 37 38.26 118 54.73 7.85 23 .08 .3 .5 SMO 1.6 --ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH N N RMS ERH ERZ DUR YR MON DA HRMN SEC DEG MIN DEG MIN KM RD S SEC KM KM REMKS MAG 96 JUN 10 315 27.95 36 14.72 120 48.33 6.32 18 1 .08 .4 .5 BIT 1.4 96 JUN 10 328 54.00 37 39.32 118 54.48 11.44 10 .06 .9 1.6 DOM 1.1 96 JUN 10 342 22.03 37 38.43 118 54.16 9.07 9 .08 .6 1.2 SMO 1.4 96 JUN 10 517 58.82 38 49.05 122 50.76 1.91 10 .05 .3 .9 GEY 1.3 96 JUN 10 535 27.30 37 32.99 118 48.37 4.46 7 .07 1.5 1.2 MOR 1.3 96 JUN 10 602 25.43 37 19.64 118 20.28 21.26 18 1 .15 .9 1.3 OWV 1.7 96 JUN 10 615 12.07 37 38.35 118 54.74 7.10 19 2 .07 .3 .5 SMO 2.0 96 JUN 10 630 47.18 37 21.40 121 43.20 8.10 66 3 .07 .1 .3 ALU 1.9 96 JUN 10 639 59.46 40 37.92 124 18.07 18.24 10 1 .05 1.0 .4 EUR 1.9 96 JUN 10 652 9.85 35 51.35 120 7.95 10.67 8 1 .18 3.0 2.1 COA * 1.5 96 JUN 10 653 17.14 37 16.49 118 22.59 13.18 32 .06 .4 .7 OWV 2.5 96 JUN 10 802 36.35 37 38.54 118 54.47 6.97 12 .13 .6 1.0 SMO 1.6 96 JUN 10 822 4.25 38 48.98 122 47.85 3.57 9 .04 .3 .6 GEY 1.1 96 JUN 10 825 40.43 38 48.99 122 48.49 4.43 7 .02 .5 .8 GEY 1.0 96 JUN 10 937 36.56 36 12.59 121 19.28 9.96 13 .03 .4 2.5 SAL 1.3 96 JUN 10 953 52.88 37 38.16 118 54.53 6.68 12 .09 .6 .8 SMO 2.0 96 JUN 10 1045 8.58 36 48.37 121 31.10 13.06 21 .12 .4 .9 SJB 1.3 96 JUN 10 1103 52.14 37 38.01 118 58.73 7.85 27 .09 .3 .4 SMO 1.9 96 JUN 10 1115 37.24 37 32.76 118 51.06 10.13 16 .09 .4 .7 MOR 1.2 96 JUN 10 1124 51.11 37 19.78 122 13.39 5.19 51 2 .11 .2 .3 BLM 2.0 96 JUN 10 1148 24.10 37 38.27 118 54.69 7.62 23 .12 .4 .6 SMO 1.8 96 JUN 10 1239 18.72 38 32.93 122 17.33 4.07 16 .21 .5 1.2 GVL 1.5 96 JUN 10 1447 28.01 37 33.48 119 1.01 5.22 24 2 .13 .5 .9 SIL 1.6 96 JUN 10 1542 33.30 37 32.84 119 1.67 6.39 14 3 .08 .7 1.5 SIL 1.2 96 JUN 10 1900 16.15 37 38.54 118 54.49 8.29 11 .07 .5 1.1 SMO 1.1 96 JUN 10 1903 12.73 38 43.34 119 36.88 7.43 19 .09 .4 1.3 WAK 2.3 96 JUN 10 1955 44.71 37 38.54 118 54.88 6.90 14 .06 .5 .6 SMO 1.4 96 JUN 10 2307 50.06 38 48.86 122 48.46 4.12 11 .04 .3 .7 GEY 1.5 96 JUN 10 2329 18.15 38 36.09 122 48.39 5.79 32 1 .09 .2 .7 ROG 1.8 96 JUN 11 14 48.57 38 49.98 122 52.72 2.30 9 .04 .4 1.2 GEY 1.1 96 JUN 11 144 6.94 40 22.56 122 13.64 14.15 20 2 .35 .7 3.1 SHA 1.9 96 JUN 11 221 8.53 37 26.62 118 52.71 4.62 14 .08 .5 1.9 MOR 1.3 96 JUN 11 325 1.36 36 18.81 120 42.79 11.14 10 .06 .5 .6 CRV 1.5 96 JUN 11 332 43.99 36 12.59 121 19.29 8.69 17 .06 .4 3.2 SAL 1.6 96 JUN 11 440 5.75 39 21.51 123 15.57 7.20 33 .07 .2 .7 MAA 2.2 96 JUN 11 505 54.94 37 33.37 119 1.07 5.40 27 .11 .4 .8 SIL 1.9 96 JUN 11 545 13.63 38 44.23 119 37.59 6.72 31 .09 .3 1.0 WAK 2.5 96 JUN 11 717 21.81 37 35.24 118 29.05 10.13 13 .05 .3 .8 CHV 1.2 96 JUN 11 819 32.54 36 37.95 121 8.16 5.60 15 .09 .3 .7 BVL 1.1 96 JUN 11 855 27.16 37 8.45 121 53.00 12.56 17 6 .28 .7 1.5 LOM 1.2 96 JUN 11 936 32.61 37 30.12 118 50.32 11.79 29 .09 .3 .7 MOR 1.5 96 JUN 11 1103 16.84 37 28.86 118 52.36 7.56 36 1 .09 .3 .6 MOR 3.1 96 JUN 11 1211 18.43 36 34.11 121 9.46 3.19 19 .06 .2 .6 PIN 1.5 96 JUN 11 1301 54.02 37 38.29 118 54.67 8.60 18 .10 .4 .7 SMO 1.5 96 JUN 11 1605 8.88 38 56.10 123 10.44 4.22 17 .08 .3 .6 MAA 1.8 --ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH N N RMS ERH ERZ DUR YR MON DA HRMN SEC DEG MIN DEG MIN KM RD S SEC KM KM REMKS MAG 96 JUN 11 1619 12.75 38 49.81 122 50.18 0.04 8 .30 1.2 3.5 GEY * 1.1 96 JUN 11 1656 45.13 36 3.37 120 35.63 5.11 12 1 .04 .4 .4 SLA 1.3 96 JUN 11 1847 2.82 37 30.91 118 49.98 0.83 7 2 .03 1.8 2.0 MOR 1.0 96 JUN 11 1848 24.04 36 0.22 120 33.16 4.69 12 .05 .6 .7 SLA 1.8 96 JUN 11 1949 46.46 38 49.10 122 47.62 3.45 11 .07 .4 .8 GEY 1.2 96 JUN 11 1958 20.35 38 49.92 122 52.62 2.05 15 1 .06 .2 .7 GEY 1.4 96 JUN 11 2042 43.92 37 7.43 121 32.87 4.72 7 .03 .7 .6 CYN 1.1 96 JUN 11 2128 6.19 37 25.32 118 52.91 4.67 22 4 .13 .6 1.3 SIL 1.4 96 JUN 11 2159 27.13 38 49.40 122 47.95 3.86 9 .03 .3 .8 GEY 1.3 96 JUN 11 2247 1.60 38 47.84 122 46.51 4.32 11 .02 .3 .6 GEY 1.4 96 JUN 11 2302 12.85 38 47.75 122 48.70 4.29 11 .02 .3 .6 GEY 1.4 96 JUN 12 414 4.89 37 24.89 118 37.68 12.29 24 2 .09 .4 .6 RVL 1.3 96 JUN 12 415 45.46 37 31.21 118 47.13 6.19 16 .05 .4 .4 MOR 1.4 96 JUN 12 730 51.54 38 48.04 122 48.68 4.79 19 .02 .2 .4 GEY 1.8 96 JUN 12 747 3.27 37 32.65 121 49.68 6.08 12 2 .05 .3 .5 SUN 1.3 96 JUN 12 801 48.49 37 32.56 118 25.27 5.79 13 1 .04 .3 .5 CHV 1.2 96 JUN 12 940 36.71 37 38.48 118 49.40 7.33 13 .09 .4 .9 HCF 1.1 96 JUN 12 1005 45.30 38 50.53 122 49.54 2.79 10 .03 .3 .9 GEY 1.4 96 JUN 12 1030 58.96 37 32.55 118 25.31 5.92 9 .03 .4 .6 CHV .9 96 JUN 12 1052 6.25 37 32.68 118 25.35 5.56 11 .05 .3 .5 CHV 1.3 96 JUN 12 1128 59.27 38 47.85 122 48.17 4.88 31 .15 .3 .6 GEY 2.1 96 JUN 12 1221 44.61 37 33.50 118 48.30 4.87 17 .08 .3 .7 MOR 1.1 96 JUN 12 1441 14.77 37 38.53 118 53.93 8.57 9 .06 1.2 1.4 SMO 1.1 96 JUN 12 1512 0.76 38 47.63 122 46.75 2.62 10 .03 .3 .5 GEY 1.3 96 JUN 12 1513 37.74 40 31.35 124 13.85 20.61 13 1 .06 .4 .4 EUR 1.9 96 JUN 12 1704 2.11 37 28.97 118 52.17 2.70 8 .03 .9 3.7 MOR 1.2 96 JUN 12 1718 33.28 38 50.64 122 49.32 1.71 7 .05 .4 .8 GEY 1.1 96 JUN 12 1735 26.72 40 30.60 121 53.96 14.27 13 1 .08 .3 .8 SHA 2.8 96 JUN 12 1754 53.51 38 49.32 122 48.20 4.12 11 .03 .3 .7 GEY 1.4 96 JUN 12 1847 50.05 37 32.77 118 49.81 8.42 21 .07 .3 .6 MOR 1.9 96 JUN 12 1904 22.59 37 38.74 118 53.98 5.07 14 .13 .5 .8 SMO 1.6 96 JUN 12 2237 2.40 36 43.25 121 21.70 3.03 46 .10 .2 .6 STN 2.4 96 JUN 12 2319 44.53 37 28.62 118 50.77 9.73 28 .08 .3 .9 MOR 3.0 96 JUN 13 320 1.08 37 40.29 122 13.97 18.26 28 .08 .3 .5 SFB 1.8 96 JUN 13 329 48.61 40 33.78 122 5.60 17.10 18 .28 .6 1.5 SHA 2.7 96 JUN 13 343 49.65 38 46.90 122 45.66 1.88 9 .07 .3 .9 GEY 1.2 96 JUN 13 434 48.27 37 39.02 118 54.93 7.09 9 .03 .7 .6 DOM 1.1 96 JUN 13 435 3.75 37 39.00 118 54.29 8.29 7 .03 .6 1.2 DOM 1.0 96 JUN 13 435 39.97 37 33.08 118 51.91 7.50 8 .42 5.3 4.3 MOR 1.2 96 JUN 13 440 37.98 37 38.61 118 54.77 7.81 12 .08 .6 .9 SMO 1.4 96 JUN 13 445 35.11 37 38.66 118 54.46 7.82 12 .11 .6 1.1 SMO 1.1 96 JUN 13 449 56.82 38 51.46 122 55.73 3.19 7 .05 .7 .7 GEY 1.4 96 JUN 13 517 36.86 37 37.55 118 53.20 5.82 13 .08 .5 .6 SMO 1.2 96 JUN 13 537 2.08 36 35.91 121 12.32 5.75 18 .06 .3 .7 PIN 1.5 96 JUN 13 612 15.35 38 49.43 122 47.53 0.02 7 .10 .4 2.0 GEY * 1.1 --ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH N N RMS ERH ERZ DUR YR MON DA HRMN SEC DEG MIN DEG MIN KM RD S SEC KM KM REMKS MAG 96 JUN 13 644 18.41 37 38.88 118 54.01 7.93 8 .04 .5 1.0 SMO 1.0 96 JUN 13 652 32.93 37 32.76 118 49.74 7.81 9 .04 .7 .9 MOR 1.3 TABLE 2. Data from National Earthquake Information Center (NEIC) UTC TIME LAT LONG DEP GS MAGS SD STA REGION AND COMMENTS HRMNSEC MB Msz USED ------------------------------------------------------------------------------- JUN 03 004843.1 12.578S 166.466E 52D 4.7 0.9 39 SANTA CRUZ ISLANDS 015906.5* 16.765N 98.557W 33N 4.2 1.0 29 NEAR COAST OF GUERRERO, MEXICO 030601.5* 6.399S 155.063E 33N 4.4 1.4 24 SOLOMON ISLANDS 035646.9* 14.601S 167.035E 196? 4.4 0.6 16 VANUATU ISLANDS 043249.2* 37.724N 18.931E 35? 3.6 1.0 19 IONIAN SEA 061521.9 9.298S 157.331E 33N 4.7 1.1 31 SOLOMON ISLANDS 063118.2 6.096S 151.022E 33N 4.7 0.8 32 NEW BRITAIN REGION, P.N.G. 085812.4 3.017S 141.773E 80* 4.4 1.1 33 NEW GUINEA, PAPUA NEW GUINEA 091946.3* 9.620S 118.925E 33N 4.6 1.3 34 SUMBAWA REGION, INDONESIA 121204.0 24.059S 70.405W 72* 4.1 0.8 19 NEAR COAST OF NORTHERN CHILE 121938.3* 25.225N 123.505E 33N 3.9 1.6 10 NORTHEAST OF TAIWAN 144959.5 12.477S 95.139W 10G 4.6 0.7 32 SOUTHWEST OF GALAPAGOS ISLANDS 163156.4* 35.664S 179.381W 33N 4.4 1.3 21 EAST OF NORTH ISLAND, N.Z. 173738.6* 6.679S 155.248E 68? 4.3 1.2 30 SOLOMON ISLANDS 195531.6 46.769N 153.712E 33N 5.5 5.2 0.9 187 KURIL ISLANDS JUN 04 003718.9 46.846N 153.671E 33N 4.7 4.4 0.8 84 KURIL ISLANDS 022618.5 6.182S 151.298E 8 4.8 0.9 47 NEW BRITAIN REGION, P.N.G. 032420.1 5.040S 151.518E 150G 4.8 0.9 39 NEW BRITAIN REGION, P.N.G. 035716.8 57.984N 156.360W 135 3.7 1.2 59 ALASKA PENINSULA 050618.5 2.863S 142.081E 33N 4.9 4.9 1.2 53 NEAR N COAST OF NEW GUINEA, PNG. 063952.1 39.677N 143.409E 30D 4.0 1.1 33 OFF EAST COAST OF HONSHU, JAPAN 080415.1 5.411N 126.768E 63* 4.6 0.9 31 MINDANAO, PHILIPPINE ISLANDS 114649.4* 1.485S 136.277E 33N 4.4 1.0 14 IRIAN JAYA REGION, INDONESIA 114819.5? 9.09 S 123.32 E 33N 4.3 1.4 14 TIMOR REGION, INDONESIA 122934.4* 4.403S 153.991E 142? 4.4 1.0 19 NEW IRELAND REGION, P.N.G. 155642.8& 65.400N 144.650W 0 3.7 43 NORTHERN ALASKA. . ML 3.3 174246.4 35.746N 35.544E 33N 4.1 0.8 27 JORDAN - SYRIA REGION 181908.5* 1.050S 136.557E 33N 4.3 1.1 16 IRIAN JAYA REGION, INDONESIA 182553.1 35.761N 35.585E 43* 3.8 0.4 24 JORDAN - SYRIA REGION 195240.2? 12.22 N 143.00 E 15* 4.0 1.4 16 SOUTH OF MARIANA ISLANDS 201534.5 18.418N 146.913E 60* 4.6 1.0 45 MARIANA ISLANDS 202202.9 43.493N 132.497E 481* 4.1 0.9 44 NEAR SOUTHEAST COAST OF RUSSIA JUN 05 010608.7 4.527S 101.944E 33N 5.2 4.8 0.9 26 SOUTHERN SUMATERA, INDONESIA 031647.5* 16.527S 173.914W 33N 4.4 0.8 20 TONGA ISLANDS 035841.1 18.479N 146.970E 72* 4.5 1.0 39 MARIANA ISLANDS 085912.1* 19.116N 121.005E 53? 4.2 1.0 18 PHILIPPINE ISLANDS REGION 122643.6 39.758N 141.766E 86 3.9 0.8 25 EASTERN HONSHU, JAPAN 131316.3 35.814N 35.718E 10G 4.4 1.0 67 JORDAN - SYRIA REGION. ML 4.5 132922.6 13.644N 144.816E 137 4.5 1.2 61 MARIANA ISLANDS 142654.9 23.000S 176.729W 84? 5.1 1.1 52 SOUTH OF FIJI ISLANDS 145655.7? 14.42 N 87.64 W 33N 3.9 1.4 8 HONDURAS 184536.6* 0.171S 134.740E 33N 4.4 1.2 21 IRIAN JAYA REGION, INDONESIA 193825.2* 44.756N 150.278E 42D 4.2 1.3 41 EAST OF KURIL ISLANDS 232517.0 30.502N 130.954E 41 4.5 0.9 54 KYUSHU, JAPAN JUN 06 013446.0* 0.907S 134.698E 33N 4.6 1.3 16 IRIAN JAYA REGION, INDONESIA 070549.8 59.824N 153.534W 151 3.5 0.7 96 SOUTHERN ALASKA 090459.1 6.736N 73.006W 160D 4.4 0.9 45 NORTHERN COLOMBIA 130859.8* 4.774N 126.948E 125? 4.3 1.5 21 TALAUD ISLANDS, INDONESIA 144913.4* 19.047S 169.316E 33N 4.9 1.4 40 VANUATU ISLANDS 162536.9 37.561N 21.158E 33N 4.6 1.2 102 SOUTHERN GREECE. ML 4.6 (THE), 5.1 (ROM). Felt on Zante. 164926.9? 16.28 S 176.28 W 33N 4.2 1.4 9 FIJI ISLANDS REGION 173535.5 41.307S 80.551E 10G 5.6 6.0 1.1 47 MID-INDIAN RIDGE. Mw 6.3 (GS), 180943.1 63.391N 148.984W 87 3.4 0.7 24 CENTRAL ALASKA 181902.6? 17.49 S 173.86 W 33N 4.4 1.3 19 TONGA ISLANDS 200922.7? 51.53 N 30.44 W 33N 3.8 1.8 13 NORTHERN MID-ATLANTIC RIDGE 202728.0 60.093N 152.828W 108D 4.4 1.2 121 SOUTHERN ALASKA. Felt (III) at Homer, (II) at Eagle River. Also felt at Ninilchik. 212905.3 35.025N 117.001W 5G 1.1 41 CENTRAL CALIFORNIA. ML 3.1 (GS). 233534.6* 27.370N 140.991E 59* 4.3 1.3 21 BONIN ISLANDS REGION JUN 07 032512.6* 38.263N 75.805E 148* 3.9 1.2 17 SOUTHERN XINJIANG, CHINA 050320.8 30.774N 50.721E 33N 4.6 1.1 58 NORTHERN IRAN 050923.5 45.508N 26.281E 150G 4.3 1.0 38 ROMANIA 051701.7* 30.734N 50.767E 33N 3.9 1.0 9 NORTHERN IRAN 081123.0* 5.866S 151.527E 33N 4.9 0.7 14 NEW BRITAIN REGION, P.N.G. 083021.5 5.310S 152.593E 33N 4.8 0.8 38 NEW BRITAIN REGION, P.N.G. 101211.4* 53.108N 159.043E 87D 4.4 0.4 22 NEAR EAST COAST OF KAMCHATKA 142139.3 12.709N 88.112W 64D 4.9 0.8 53 OFF COAST OF CENTRAL AMERICA. Felt (III) at San Salvador, El Salvador. 223118.8 34.285N 116.482W 5G 1.2 25 SOUTHERN CALIFORNIA. ML 3.0 230703.3 69.608N 125.731W 10G 4.6 0.7 18 NORTHWEST TERRITORIES, CANADA JUN 08 004327.0* 11.234N 141.166E 33N 3.9 0.9 10 WESTERN CAROLINE ISLANDS 025557.9 41.633N 88.628E 0G 5.9 4.3 0.7 101 SOUTHERN XINJIANG, CHINA. Probable underground nuclear explosion. 052610.2 58.428N 32.003W 10G 5.1 4.9 1.1 65 NORTH ATLANTIC OCEAN 055457.9* 58.292N 31.598W 10G 4.8 0.8 31 NORTH ATLANTIC OCEAN 055824.1 58.215N 31.940W 10G 4.5 1.1 43 NORTH ATLANTIC OCEAN 071455.5* 36.391N 140.803E 68* 4.6 0.7 9 NEAR EAST COAST OF HONSHU, JAPAN 071456.7* 36.388N 140.531E 72 4.1 0.9 18 NEAR EAST COAST OF HONSHU, JAPAN 151041.9* 26.727N 125.630E 33N 3.6 0.6 8 NORTHEAST OF TAIWAN 163703.4* 12.915S 14.604W 10G 4.5 1.1 32 SOUTHERN MID-ATLANTIC RIDGE 164607.8 34.754N 136.105E 75 3.9 0.8 28 WESTERN HONSHU, JAPAN 202654.0* 24.856N 123.319E 39* 3.9 1.0 16 SOUTHWESTERN RYUKYU ISLANDS 212402.4* 21.364S 168.178E 26D 4.2 0.9 17 LOYALTY ISLANDS 231915.0 51.471N 178.113W 33N 6.0 6.3 0.9 141 ANDREANOF ISLANDS, ALEUTIAN IS. Felt on Adak. JUN 09 011217.4 17.482N 145.723E 147D 6.0 1.1 102 MARIANA ISLANDS. Mw 6.5 (GS), Felt strongly on Saipan. 024520.4* 21.935S 179.599W 500G 4.4 0.7 13 FIJI ISLANDS REGION 040846.8* 23.071S 179.710E 600G 4.6 0.8 17 SOUTH OF FIJI ISLANDS 100028.8* 51.140N 178.009W 33N 4.9 0.9 39 ANDREANOF ISLANDS, ALEUTIAN IS. 145250.0& 47.750N 121.850W 3 8 WASHINGTON. . MD 3.1 (SEA). 232513.0 28.427N 92.239E 33N 5.3 0.8 26 EASTERN XIZANG-INDIA BORDER REG. JUN 10 010446.4 13.505S 167.084E 200D 5.4 0.8 70 VANUATU ISLANDS. Mw 6.7 (GS). 040334.2 51.394N 177.817W 33N 6.9 7.7 0.9 114 ANDREANOF ISLANDS, ALEUTIAN IS. Mw 7.9 (GS), 7.9 (HRV). Felt strongly on Adak. Tsunami generated with wave heights (peak-to-trough) recorded at the following selected tide stations: 102 cm on Adak, 15 cm on Shemya, 12.5 cm at Kodiak and 10.2 cm at Sand Point, Alaska; 46 cm on Midway; 55 cm at Kahului, 38 cm at Hilo, 33 cm at Nawiliwili and 10 cm at Honolulu, Hawaii; 30 cm at Crescent City, California; 10 cm at Port Angeles, Washington. 041657.8* 51.942N 177.459W 33N 5.7 0.9 46 ANDREANOF ISLANDS, ALEUTIAN IS. 042154.0? 51.50 N 177.32 W 33N 5.6 0.6 16 ANDREANOF ISLANDS, ALEUTIAN IS. 043927.0* 51.152N 177.775W 33N 4.9 1.2 31 ANDREANOF ISLANDS, ALEUTIAN IS. 044930.5* 51.154N 178.107W 33N 5.0 0.9 38 ANDREANOF ISLANDS, ALEUTIAN IS. 053440.5 51.197N 177.924W 33N 5.3 0.9 35 ANDREANOF ISLANDS, ALEUTIAN IS. 061148.6* 51.413N 177.010W 33N 5.3 1.3 47 ANDREANOF ISLANDS, ALEUTIAN IS. 082916.8 51.310N 176.382W 33N 5.3 1.2 70 ANDREANOF ISLANDS, ALEUTIAN IS. 083212.7 51.225N 177.469W 33N 5.5 1.1 76 ANDREANOF ISLANDS, ALEUTIAN IS. 091619.2* 51.154N 177.576W 33N 5.0 1.0 36 ANDREANOF ISLANDS, ALEUTIAN IS. 093001.6* 51.270N 177.752W 33N 5.3 1.0 53 ANDREANOF ISLANDS, ALEUTIAN IS. 093207.1* 51.339N 176.456W 33N 5.4 1.1 59 ANDREANOF ISLANDS, ALEUTIAN IS. 094105.2 51.392N 176.515W 33N 5.5 5.6 1.1 78 ANDREANOF ISLANDS, ALEUTIAN IS. 100827.2* 51.023N 178.210W 33N 5.0 1.1 31 ANDREANOF ISLANDS, ALEUTIAN IS. 101828.2* 51.350N 177.751W 33N 5.0 1.0 33 ANDREANOF ISLANDS, ALEUTIAN IS. 103211.5* 51.515N 178.566W 33N 5.2 1.1 47 ANDREANOF ISLANDS, ALEUTIAN IS. 115602.4 51.292N 178.043W 33N 5.2 4.6 1.1 68 ANDREANOF ISLANDS, ALEUTIAN IS. 130104.9 51.259N 177.053W 33N 5.2 0.9 58 ANDREANOF ISLANDS, ALEUTIAN IS. 133851.6 51.514N 177.391W 33N 5.2 1.0 54 ANDREANOF ISLANDS, ALEUTIAN IS. 134431.3* 51.039N 176.537W 33N 5.1 1.1 23 ANDREANOF ISLANDS, ALEUTIAN IS. 135827.1 51.450N 177.347W 33N 5.6 4.8 1.0 73 ANDREANOF ISLANDS, ALEUTIAN IS. 152456.2 51.296N 176.977W 33N 6.3 7.2 0.9 74 ANDREANOF ISLANDS, ALEUTIAN IS. Felt on Adak. 153631.5* 51.401N 176.530W 33N 5.9 1.0 44 ANDREANOF ISLANDS, ALEUTIAN IS. 170701.6* 51.474N 176.864W 33N 5.0 1.2 31 ANDREANOF ISLANDS, ALEUTIAN IS. 174416.1 51.462N 177.086W 33N 5.8 5.6 1.0 68 ANDREANOF ISLANDS, ALEUTIAN IS. 191639.5 51.341N 176.711W 33N 5.0 0.9 36 ANDREANOF ISLANDS, ALEUTIAN IS. 194322.6 51.147N 176.924W 33N 5.1 0.8 33 ANDREANOF ISLANDS, ALEUTIAN IS. 194439.7 51.059N 177.043W 33N 5.3 0.9 43 ANDREANOF ISLANDS, ALEUTIAN IS. JUN 11 072920.2* 21.727S 176.342W 141D 5.0 0.6 33 FIJI ISLANDS REGION 104008.3 51.307N 176.209W 33N 5.7 5.6 1.0 93 ANDREANOF ISLANDS, ALEUTIAN IS. 110047.4 51.361N 176.176W 33N 5.4 0.9 65 ANDREANOF ISLANDS, ALEUTIAN IS. 130303.3 51.334N 176.494W 33N 5.5 5.1 1.0 80 ANDREANOF ISLANDS, ALEUTIAN IS. Felt on Adak. 165212.8 17.298N 68.261W 33N 5.3 0.9 82 MONA PASSAGE. Felt at Mayaguez, Puerto Rico. 165735.8* 6.949N 74.692W 66D 4.8 1.0 27 NORTHERN COLOMBIA 182255.3 12.623N 125.045E 33N 6.0 7.0 0.8 37 SAMAR, PHILIPPINE ISLANDS. Mw 6.9 (GS), 7.1 (HRV). Felt (V Rf) at Catarman, Samar; (IV RF) at Palo, Leyte, and Bulusan, Sorsogon; (III RF) at Legaspi City. JUN 12 021647.6 51.327N 178.299W 33N 5.5 5.3 1.1 97 ANDREANOF ISLANDS, ALEUTIAN IS. Note: Computer users can get faster access to the Weekly Seismicity Reports in any of three ways: 1. World-Wide-Web (WWW) access: http://quake.wr.usgs.gov 2. Anonymous FTP access: quake.wr.usgs.gov (in pub/www/QUAKES/WEEKREPS) 3. Email Access: (send email to michael@andreas.wr.usgs.gov) Notes for Table 1: Origin time in the list is in GMT, in the text and on maps it is in local time. N RD: is the number of readings used to locate the event. N S: is the number of S waves in N RD. RMS SEC: is the root mean squared residual misfit for the location is seconds, the lower the better, over 0.3 to 0.5 seconds is getting bad, but this is machine, not hand timed, data. ERH: is the estimated horizontal error in kilometers. ERZ: is the estimated vertical error in kilometers. N FM: is the number of readings used to compute the magnitude. REMKS: obtuse region codes that denote the velocity model used to locate the event. DUR MAG: is the magnitude as determined from the duration of the seismograms, not the amplitude. Sort of like going to echo canyon and measuring how loud your yell is by counting echos. FIG: denotes the figure/event number in the maps posted separately.