. Seismicity Report for Northern California, the Nation, and the World for the week of October 13 - 19, 1994 Data and text prepared by Steve Walter and Barry Hirshorn U.S. Geological Survey 345 Middlefield Rd. MS-977, Menlo Park, CA 94025 Graphics by Quentin Lindh San Francisco Bay Area For the seven-day period ending at midnight on Wednesday, October 19, 1994 the U.S. Geological Survey office in Menlo Park recorded 33 earthquakes of magnitude one (M1) and greater within the San Francisco Bay area shown in Figure 1. Four of these were as large as M2. This total compares to 34 earthquakes during the previous seven-day period (October 6 - 12), nine of which were as large as M2. Three of the M2 earthquakes occurred along the creeping segment of the San Andreas. The first of these was a M2.3 last Thursday evening that occurred about four miles northwest of San Juan Bautista (#1 in figure 1). The north end of the creeping zone followed with a M2.3 early Sunday morning about five miles north of Watsonville (#3/1). Finally, a M2.4 Tuesday night occurred between the other two about eight miles northwest of San Juan Bautista (#4/1). The remaining M2 earthquake occurred Wednesday afternoon as part of a small cluster along the southern end of the Black Mountain fault (#5/1). Though the activity occurred just four miles southwest of Mountain View, no reports were received that any of these small earthquakes were felt. The East Bay was relatively quiet with no earthquakes as large as M2. A couple of M1 earthquakes were recorded along the southern Concord fault and one M1.2 occurred Monday night on the northern Hayward fault just north of Richmond. Two other small earthquakes are worth mentioning: on Monday two M1 events occurred beneath San Francisco Bay about one mile offshore of the San Francisco airport (#2/1). Earthquakes of this size, though not common, have occurred in this area before, most recently this past June. Northern & Central California Only a few areas were active during the past week. As usual, the Cape Mendocino area led the list with activity both near the Cape and farther out along the fracture zone. The outer fracture zone, which previously had been quite active with aftershocks from the M7.0 earthquake last month, experienced only one aftershock as large as M3 (#3/2). In contrast, the fracture zone closer to the Cape experienced three shocks that were as large as M3 including a M4.1 last Thursday afternoon that was probably felt in the Petrolia area. The Coast Range experienced a number of small quakes along the Maacama fault, only one of which was as large as M2 (#6/2). The Geysers geothermal area experienced three earthquakes larger than M2 including a M3.1 Wednesday evening (#7/2). In the eastern Sierra Nevada, aftershocks continued to decline in the Markleeville area. During the past week, only 18 aftershocks as large as M2 were recorded, the largest a M2.8 last Friday evening (#4/2). This compares to 27 M2 aftershocks during the previous week and 37 M2 aftershocks the week before that. Two deep earthquakes were recorded beneath the central Sierra Nevada during the week. The first was a M2.2 that occurred last Thursday evening about 30 miles southeast of Yosemite Valley at a depth of about 32 km (#2/2). It was followed on Saturday evening by a M2.1 about 30 miles southwest of Yosemite Valley that had a focal depth of about 21 km (#5/2). Long Valley Caldera Only one earthquake as large as M2 occurred within the caldera during the week, a M2.5 last Friday afternoon that occurred just south of the airport (#1/3). One M2 earthquake was also recorded south of the caldera, a M2.7 that occurred Saturday afternoon southeast of Mt. Morrison (#2/3). USA Seismicity (October 10 - 19) Two notable earthquakes occurred in the lower 48 states, outside of California, according to data provided by the National Earthquake Information Center. The first of these was a M2.9 last Friday in the southern region of Puget Sound, Washington (#1/4). Though small, this event was felt in the nearby town of Port Orchard. On Sunday a M3.5 occurred along the Idaho/Wyoming border that was felt in the town of Afton, WY (#2/4). Finally, a M4.1 occurred in southeastern California near the town of Ridgecrest (#3/4). The Planet Earth (October 10 - 19) The largest earthquake on the planet was a Ms6.4 in northern Indonesia that injured 19 people and caused considerable damage on the island of Obi (#2/5). A Ms6.1 in eastern Papua New Guinea was felt at Rabaul, New Britain but apparently produced no damage (#3/5). The southern Kuril Islands/northern Hokkaido area experienced a Mb6.3 earthquake, an aftershock to the M8.1 quake that occurred October 4 approximately 150 miles offshore of the islands (#5/5). The northern Philippines island of Luzon experienced several moderate earthquakes during the week, the largest a Ms5.7 (#1/5). Notable earthquakes in the western hemisphere included a Mb5.5 in central Peru (#4/5) and a M4.5 off the coast of central Chile that was felt in Rocas de Santo Domingo and Valparaiso. 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 94 OCT 13 844 18.28 38 49.27 122 46.64 2.07 8 .03 .3 .6 GEY 1.2 94 OCT 13 927 41.13 38 49.88 122 49.76 2.70 7 .07 .4 1.2 GEY 1.2 94 OCT 13 1124 13.49 37 18.29 122 9.01 9.03 35 3 .12 .3 .4 BLM 1.8 94 OCT 13 1220 7.04 38 50.42 122 47.81 0.03 9 .11 .4 1.6 GEY * 1.3 94 OCT 13 1239 10.35 37 20.70 121 42.52 7.67 24 1 .07 .3 .5 ALU 1.0 94 OCT 13 1619 12.30 37 29.66 118 48.17 8.92 14 1 .04 .6 .7 MOR 1.1 94 OCT 13 1721 55.75 38 46.04 122 35.53 7.16 14 2 .09 .3 1.0 GVL 1.6 94 OCT 13 1935 0.56 38 47.66 122 44.64 0.59 7 .07 .3 1.3 GEY 1.1 94 OCT 13 2004 33.20 37 6.54 121 50.07 3.43 13 .08 .4 .6 LOM 1.1 94 OCT 13 2125 12.21 37 56.10 122 3.08 8.16 24 2 .16 .4 .6 CON 1.6 94 OCT 14 48 46.18 37 27.97 121 48.76 7.61 15 1 .05 .3 .4 ALU 1.2 94 OCT 14 57 25.39 40 19.06 124 37.22 19.25 22 2 .12 1.3 .3 MEN 4.1 94 OCT 14 103 48.68 40 18.75 124 39.21 19.14 20 1 .15 1.7 .4 MEN 3.2 94 OCT 14 252 10.18 39 33.22 123 22.60 0.03 8 2 .10 .4 1.9 MAA * 1.2 94 OCT 14 308 51.35 37 19.04 119 27.65 32.49 25 .09 .9 1.7 KAI 2.4 94 OCT 14 332 31.67 36 52.50 121 36.34 7.21 38 .12 .3 .5 SJB 2.4 94 OCT 14 524 45.12 37 34.86 118 49.06 7.59 26 .12 .3 .6 MOR 1.8 94 OCT 14 531 19.58 39 43.16 123 27.08 9.63 20 1 .07 .3 .5 MAA 1.6 94 OCT 14 633 25.61 40 18.14 124 25.09 18.55 23 2 .09 .7 .2 MEN 3.1 94 OCT 14 633 43.32 38 49.65 122 49.94 1.76 11 2 .07 .4 .7 GEY 1.7 94 OCT 14 719 25.89 40 20.41 125 30.03 22.65 21 2 .31 6.918.7 MEN - 2.5 94 OCT 14 819 43.91 37 33.85 118 47.14 4.32 15 .03 .4 .9 MOR 1.1 94 OCT 14 844 57.40 37 34.67 118 49.75 2.38 19 .10 .3 .5 MOR 1.7 94 OCT 14 854 56.55 38 50.74 122 48.19 0.62 7 .02 .3 1.0 GEY 1.1 94 OCT 14 952 12.55 38 49.01 119 44.48 0.03 24 3 .13 1.0 .9 WAK 2.7 94 OCT 14 1012 58.26 38 45.94 122 44.29 1.86 13 .05 .2 .5 GEY 1.5 94 OCT 14 1205 45.11 38 44.72 119 41.40 1.36 8 .14 8.9 8.7 WAK - 2.5 94 OCT 14 1356 28.35 38 43.38 119 49.72 0.03 8 .08 4.1 2.2 WAK * 2.6 94 OCT 14 1419 52.29 37 21.28 118 21.28 8.63 18 .05 .3 .9 OWV 1.8 94 OCT 14 1420 0.57 37 21.41 118 21.04 13.75 11 .21 .8 2.3 OWV 1.8 94 OCT 14 1420 18.92 40 16.61 124 35.77 19.12 8 .12 4.1 .9 MEN 2.7 94 OCT 14 1428 0.98 37 55.48 121 58.76 11.24 26 2 .11 .4 .5 CON 1.4 94 OCT 14 1549 51.91 38 44.60 119 44.54 0.15 18 .22 2.0 2.4 WAK * 2.5 94 OCT 14 1643 51.73 39 12.86 123 12.94 6.80 9 3 .07 .7 .9 MAA 1.4 94 OCT 14 1645 13.15 37 38.08 122 21.10 9.24 24 3 .19 .4 .8 SFB 1.4 94 OCT 14 1726 56.75 40 18.98 125 21.72 12.32 14 2 .2211.713.3 MEN- 2.8 94 OCT 14 1730 29.86 37 39.77 118 51.39 6.04 13 .09 .4 .7 DOM 1.2 94 OCT 14 1732 58.81 36 54.42 121 28.63 5.25 28 1 .19 .4 .9 BUS 1.1 94 OCT 14 1800 22.07 37 12.96 121 36.50 4.00 13 1 .07 .3 .9 SFL 1.1 94 OCT 14 1938 9.56 37 32.22 118 50.88 10.25 23 .08 .3 .8 MOR 1.4 94 OCT 14 1953 7.12 37 37.99 122 20.79 8.54 13 3 .15 .6 1.5 SFB 1.8 94 OCT 14 2028 42.43 37 29.30 118 22.56 7.61 14 .08 .3 .8 CHV 1.5 94 OCT 14 2239 44.75 37 37.46 118 51.15 6.78 38 2 .12 .3 .4 SMO 2.6 94 OCT 15 55 7.39 36 51.83 121 35.79 5.93 35 .18 .4 .6 SJB 1.6 94 OCT 15 122 39.81 38 45.42 119 43.15 0.11 38 2 .15 .6 1.0 WAK- 2.8 --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 94 OCT 15 407 31.41 38 47.82 119 45.81 0.03 16 .15 7.5 2.9 WAK * 2.6 94 OCT 15 411 9.46 38 45.38 119 45.36 0.00 27 .22 1.8 1.6 WAK * 2.7 94 OCT 15 706 27.86 37 34.43 118 49.90 2.70 29 2 .14 .2 .6 MOR 1.9 94 OCT 15 742 8.26 36 51.98 121 36.30 7.45 56 1 .19 .3 .5 SJB 1.6 94 OCT 15 922 17.76 37 39.63 118 54.07 0.03 7 .12 .6 1.0 DOM * 1.3 94 OCT 15 954 55.00 37 27.29 121 37.03 6.29 27 3 .05 .2 .5 HAM 1.2 94 OCT 15 1057 56.47 36 27.91 121 2.27 6.49 63 2 .08 .2 .5 BIT 2.6 94 OCT 15 1209 16.76 37 21.42 118 21.42 8.45 12 .08 .6 1.1 OWV 1.8 94 OCT 15 1252 1.77 36 38.82 121 12.96 5.55 12 .06 .3 .9 PAI 1.2 94 OCT 15 1500 49.76 38 46.98 122 46.40 0.04 7 .04 .3 1.0 GEY * 1.2 94 OCT 15 1501 11.85 38 47.11 122 46.29 1.02 18 .05 .2 .5 GEY 1.9 94 OCT 15 1529 55.84 36 39.36 121 16.60 7.54 57 3 .08 .2 .4 STN 2.6 94 OCT 15 1538 0.93 35 55.62 120 28.67 4.76 15 2 .05 .3 .6 MID 1.2 94 OCT 15 1633 0.63 36 34.38 121 10.29 8.55 32 .05 .2 .5 PIN 2.0 94 OCT 15 1634 45.52 36 39.14 121 16.74 6.88 19 .06 .3 .7 STN 1.3 94 OCT 15 1704 40.99 37 34.63 118 50.31 1.78 15 .06 .4 .4 MOR 1.5 94 OCT 15 1753 18.77 36 36.68 121 13.22 2.23 15 .08 .3 .8 PIN 1.4 94 OCT 15 1812 31.65 38 47.60 122 46.72 1.27 15 .04 .2 .4 GEY 1.7 94 OCT 15 1840 12.83 37 26.78 121 48.26 4.62 22 .11 .3 .4 ALU 1.4 94 OCT 15 1843 30.11 38 43.48 119 44.74 0.41 11 2 .12 1.1 2.9 WAK * 2.0 94 OCT 15 2027 27.04 37 32.24 118 50.65 11.08 16 .08 .5 1.0 MOR 1.1 94 OCT 15 2056 44.57 40 24.08 125 30.33 23.12 23 1 .22 4.916.7 MEN - 3.2 94 OCT 15 2319 35.42 38 49.18 122 47.17 0.94 8 .06 .3 .6 GEY 1.2 94 OCT 15 2330 54.83 38 48.41 122 46.59 2.27 7 .02 .4 .5 GEY 1.2 94 OCT 15 2350 4.03 37 36.39 118 48.33 5.22 14 .09 .4 .8 HCF 1.5 94 OCT 16 13 36.10 38 45.16 119 44.23 0.25 16 .13 .9 2.0 WAK * 2.6 94 OCT 16 40 52.02 37 25.97 121 46.22 11.52 33 2 .06 .2 .5 ALU 1.5 94 OCT 16 56 53.05 37 32.33 118 50.85 10.40 37 .11 .3 .5 MOR 2.8 94 OCT 16 59 34.65 37 32.37 118 51.26 9.25 8 1 .09 1.0 1.8 MOR 1.2 94 OCT 16 230 32.67 37 26.01 119 59.33 20.58 23 .34 .8 .9 KAI 2.3 94 OCT 16 249 11.97 37 40.73 118 58.08 1.58 14 .07 .2 .3 WMO 1.5 94 OCT 16 253 54.65 38 45.41 119 38.71 7.51 22 .12 .9 2.2 WAK 2.7 94 OCT 16 414 2.96 40 22.34 125 16.69 13.56 20 2 .27 8.210.1 MEN 2.8 94 OCT 16 414 8.97 40 16.86 124 46.24 15.04 8 .1510.4 4.9 MEN - 2.7 94 OCT 16 428 3.01 38 48.00 119 35.30 0.46 18 .11 1.6 2.9 WAK * 2.6 94 OCT 16 511 49.78 37 32.09 118 50.81 11.22 20 .08 .4 .8 MOR 1.3 94 OCT 16 749 39.07 37 36.94 118 52.92 4.52 24 .16 .4 .6 SHE 2.0 94 OCT 16 1217 36.57 38 47.99 122 48.16 3.14 19 .11 .3 .6 GEY 1.9 94 OCT 16 1335 46.23 36 59.62 121 46.24 15.25 76 .09 .2 .3 LOM 2.5 94 OCT 16 1444 43.59 36 39.35 121 16.54 7.09 35 .06 .2 .4 STN 1.5 94 OCT 16 1446 10.54 36 15.08 120 16.24 14.34 18 .09 .6 .8 COA 1.7 94 OCT 16 1535 20.58 38 47.18 122 46.05 0.65 18 .07 .2 .7 GEY 1.9 94 OCT 16 1636 4.52 37 38.91 118 54.30 5.27 8 .11 .9 1.2 SMO 1.0 94 OCT 16 1647 49.92 37 38.95 118 54.67 5.37 29 .11 .3 .4 SMO 2.0 94 OCT 16 1649 12.34 37 39.37 118 54.09 4.82 9 .08 .7 .9 DOM 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 94 OCT 16 1700 4.19 38 45.13 119 38.57 0.30 20 2 .12 1.0 1.7 WAK * 2.2 94 OCT 16 1702 23.02 37 7.95 121 34.85 4.19 18 1 .10 .3 .6 CYN 1.2 94 OCT 16 1708 36.32 37 39.34 118 54.44 5.25 21 .13 .5 .6 DOM 1.4 94 OCT 16 1751 38.77 37 39.52 118 54.46 5.23 9 .14 1.0 1.3 DOM 1.2 94 OCT 16 1752 4.06 37 39.17 118 54.25 4.71 9 .05 .5 .7 DOM 1.2 94 OCT 16 1818 22.89 38 45.82 119 39.90 0.02 20 2 .09 .6 .8 WAK * 2.3 94 OCT 16 1951 36.39 38 45.64 122 43.03 1.98 13 .10 .4 .5 GEY 1.4 94 OCT 16 2022 55.93 38 49.34 122 47.24 1.24 8 .04 .3 .6 GEY 1.2 94 OCT 16 2127 57.74 37 25.84 121 46.42 9.36 14 2 .05 .3 .6 ALU 1.0 94 OCT 16 2137 25.82 39 1.47 121 40.91 15.94 7 1 .08 2.1 4.3 SAC 1.6 94 OCT 16 2143 58.40 40 18.45 124 27.13 8.92 15 1 .06 .8 .4 MEN 1.9 94 OCT 16 2158 30.27 38 49.25 122 47.09 0.75 14 .09 .3 .6 GEY 1.7 94 OCT 16 2259 6.65 38 44.52 119 39.23 1.19 23 3 .11 .9 3.4 WAK * 2.3 94 OCT 17 7 30.37 37 22.82 121 46.08 0.06 12 .08 .5 .9 ALU * 1.1 94 OCT 17 143 6.74 40 18.58 124 25.13 9.88 8 1 .04 .9 .6 MEN- 1.2 94 OCT 17 215 37.54 37 26.01 121 46.36 9.75 15 2 .08 .4 .7 ALU 1.0 94 OCT 17 248 6.68 38 49.06 122 46.04 0.77 8 .04 .3 .8 GEY 1.2 94 OCT 17 312 11.93 38 47.65 122 47.93 2.49 7 .03 .4 .6 GEY 1.0 94 OCT 17 420 43.71 36 59.90 121 45.88 14.17 29 .07 .3 .7 LOM 1.3 94 OCT 17 503 37.99 36 0.10 120 33.39 5.38 32 2 .10 .3 .4 SLA 1.6 94 OCT 17 521 8.81 39 35.20 123 26.89 5.66 7 1 .09 .6 1.0 MAA .9 94 OCT 17 628 43.01 38 48.45 122 48.63 1.33 26 .05 .2 .3 GEY 2.3 94 OCT 17 628 55.94 38 48.10 122 48.62 1.48 13 .12 .4 .8 GEY 2.4 94 OCT 17 632 27.05 38 49.55 122 48.52 1.12 9 .09 .3 .8 GEY 1.2 94 OCT 17 719 51.14 37 39.34 118 54.08 0.71 12 2 .08 .3 .2 DOM 2.1 94 OCT 17 740 49.41 36 35.38 121 11.37 6.73 46 1 .07 .2 .4 PIN 1.9 94 OCT 17 747 33.54 37 36.71 118 49.02 5.40 16 .07 .4 .7 HCF 1.1 94 OCT 17 754 27.43 39 18.10 123 13.63 6.86 40 3 .12 .2 .9 MAA 2.2 94 OCT 17 817 15.51 38 47.55 122 45.83 1.44 17 .07 .2 .5 GEY 1.7 94 OCT 17 853 11.18 38 50.32 122 49.79 2.29 8 .06 .5 1.0 GEY 1.4 94 OCT 17 921 39.41 38 47.68 122 47.97 2.49 8 .02 .3 .5 GEY 1.3 94 OCT 17 940 16.22 36 59.50 121 45.54 15.48 15 1 .09 .8 1.1 LOM- .9 94 OCT 17 944 14.39 36 12.16 120 15.94 6.94 8 1 .12 2.9 3.5 COA 94 OCT 17 1109 2.05 37 25.41 121 40.70 7.86 12 2 .08 .4 .8 HAM 1.4 94 OCT 17 1301 18.49 37 27.42 118 48.78 11.34 10 1 .07 1.5 1.0 MOR 1.0 94 OCT 17 1318 44.29 38 47.70 122 47.41 0.03 8 .04 .3 .8 GEY * 1.2 94 OCT 17 1359 12.52 37 30.63 118 52.66 16.26 18 1 .08 .6 1.0 MOR 1.1 94 OCT 17 1433 33.37 37 28.59 118 48.57 12.63 16 .08 .5 1.2 MOR 1.1 94 OCT 17 1617 42.71 38 45.49 122 42.41 2.50 7 .03 .4 .5 GEY 1.1 94 OCT 17 1634 37.67 37 36.93 118 52.44 5.72 14 .08 .4 .7 SMO 1.2 94 OCT 17 1802 50.41 38 49.24 122 46.75 2.33 8 .04 .4 .7 GEY 1.1 94 OCT 17 1814 38.49 38 35.76 122 16.64 4.62 27 1 .30 .5 1.3 GVL 1.9 94 OCT 17 1829 57.39 36 5.80 120 39.37 3.55 8 1 .06 1.0 2.4 SLA- 1.6 94 OCT 17 1952 15.81 40 8.47 123 47.98 24.37 10 1 .10 .7 .9 MEN 1.3 94 OCT 17 2329 36.49 37 35.95 118 51.86 4.23 11 .18 .7 2.0 MOR 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 94 OCT 17 2330 26.88 38 49.24 122 47.44 1.77 10 .07 .4 .5 GEY 1.4 94 OCT 17 2342 20.40 38 34.76 122 17.49 4.79 9 1 .32 1.3 1.9 GVL .8 94 OCT 18 0 3.91 37 32.79 118 51.74 12.28 20 .08 .6 1.1 MOR 1.0 94 OCT 18 109 1.02 37 23.52 121 35.75 6.70 30 3 .13 .3 .9 HAM 1.5 94 OCT 18 121 25.06 38 50.30 122 48.38 1.36 10 .04 .3 .8 GEY 1.4 94 OCT 18 247 28.57 38 47.20 119 42.42 0.04 30 3 .17 .7 1.1 WAK * 2.6 94 OCT 18 427 42.92 37 58.10 122 20.92 3.84 23 5 .24 .4 .8 HAY 1.3 94 OCT 18 441 28.80 40 21.44 124 23.65 16.62 9 1 .07 1.0 .6 MEN 1.3 94 OCT 18 539 18.43 37 5.72 121 53.62 10.19 27 1 .08 .3 .6 LOM 1.4 94 OCT 18 617 6.05 37 35.81 118 50.71 8.96 18 .08 .4 .7 MOR 1.4 94 OCT 18 635 19.86 37 35.89 118 50.65 9.17 17 .07 .5 .8 MOR 1.2 94 OCT 18 729 36.27 36 17.20 120 26.48 0.68 9 .41 1.315.3 COA- 1.3 94 OCT 18 734 0.69 38 47.78 119 41.16 1.73 22 3 .17 1.5 8.2 WAK 2.8 94 OCT 18 821 21.59 37 17.76 121 58.54 2.03 37 1 .11 .2 1.6 SCV 1.3 94 OCT 18 1153 9.66 37 39.18 118 51.32 9.24 13 .06 .6 1.0 HCF 1.0 94 OCT 18 1158 9.30 38 46.01 119 39.95 0.83 19 2 .12 1.2 4.1 WAK * 2.2 94 OCT 18 1201 46.37 37 39.00 118 51.36 8.64 12 .10 .7 1.1 HCF 1.1 94 OCT 18 1240 40.99 37 39.43 118 51.42 8.79 11 .04 .7 1.5 DOM 1.0 94 OCT 18 1312 5.42 38 47.91 122 47.88 0.83 22 .07 .2 .3 GEY 1.8 94 OCT 18 1338 14.44 40 12.48 125 21.75 21.47 9 2 .21 9.116.9 MEN - 2.4 94 OCT 18 1405 0.07 36 33.53 121 3.37 8.36 29 4 .08 .2 .4 BVL 1.6 94 OCT 18 1623 13.78 38 46.28 119 43.29 0.88 21 2 .11 .9 3.4 WAK- 2.5 94 OCT 18 1639 5.01 36 51.57 121 35.28 6.39 30 .17 .4 .6 SJB 1.3 94 OCT 18 1640 31.22 40 23.21 124 19.77 29.22 17 1 .08 .5 .6 MEN 2.2 94 OCT 18 1825 53.73 38 47.82 122 47.21 0.55 8 .06 .3 .7 GEY 1.2 94 OCT 18 2009 17.10 38 44.32 119 38.68 1.83 24 3 .12 .8 2.9 WAK 2.5 94 OCT 18 2057 6.52 36 39.21 121 16.65 7.27 12 .04 .4 1.0 STN 1.0 94 OCT 18 2101 18.63 39 35.70 123 24.32 9.82 10 1 .09 .5 .8 MAA 1.2 94 OCT 18 2144 10.22 38 49.29 122 45.72 0.89 7 .07 .3 1.0 GEY 1.0 94 OCT 18 2159 58.15 39 12.53 123 11.26 1.00 11 2 .11 .5 2.3 MAA 1.5 94 OCT 19 53 49.85 37 38.21 118 58.29 8.13 16 .07 .5 .7 SMO 1.5 94 OCT 19 54 9.44 37 38.27 118 58.39 7.63 14 .08 .5 .8 SMO 1.5 94 OCT 19 137 51.05 37 35.44 118 29.12 9.73 18 .04 .3 .9 CHV 1.5 94 OCT 19 242 11.10 37 35.78 118 54.50 5.78 31 .11 .3 .4 SIL 1.9 94 OCT 19 257 19.62 37 36.06 118 54.09 6.85 15 .06 .5 .8 SHE 1.1 94 OCT 19 300 29.32 36 10.95 120 8.22 2.58 12 .09 1.2 2.3 COA 1.7 94 OCT 19 354 13.22 37 35.99 118 54.30 6.49 14 .07 .5 .8 SIL 1.0 94 OCT 19 413 3.61 36 54.37 121 39.51 10.83 72 .17 .3 .5 SJB 2.5 94 OCT 19 437 28.83 37 35.77 118 54.50 5.96 30 .11 .3 .4 SIL 1.8 94 OCT 19 438 12.96 37 35.39 118 54.40 5.71 21 .09 .4 .6 SIL 1.7 94 OCT 19 539 43.67 37 38.91 118 56.00 8.00 13 .08 .5 1.0 SMO 1.0 94 OCT 19 551 59.14 37 39.16 118 55.99 6.63 9 .02 .6 1.3 SMO 1.0 94 OCT 19 554 13.55 38 47.89 122 45.28 0.74 10 .08 .3 .9 GEY 1.2 94 OCT 19 601 14.72 38 48.97 122 27.03 7.46 13 .17 .6 .9 GVL 1.2 94 OCT 19 623 0.23 39 31.59 119 1.10 1.75 7 .4217.635.6 NEV - 2.9 --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 94 OCT 19 746 22.14 36 16.07 120 50.54 6.47 15 2 .15 .4 .9 BIT- 1.1 94 OCT 19 1048 6.54 39 35.82 123 24.17 10.05 20 2 .08 .3 .5 MAA 1.7 94 OCT 19 1351 22.15 40 9.18 125 17.36 12.75 8 2 .09 7.2 8.3 PON - 2.2 94 OCT 19 1352 47.44 40 23.30 124 38.35 26.57 10 1 .07 2.2 1.5 MEN 1.8 94 OCT 19 1454 46.27 39 39.12 123 5.51 0.02 24 2 .16 .3 2.0 BAR 1.8 94 OCT 19 1523 6.99 37 30.82 118 51.50 2.58 7 .06 4.3 9.1 MOR - 3.0 94 OCT 19 1523 28.76 37 32.66 118 50.77 9.68 12 1 .04 .8 .9 MOR .9 94 OCT 19 1605 21.12 39 40.40 123 25.00 5.23 7 .04 .5 .9 MAA 1.6 94 OCT 19 1611 59.17 37 38.02 118 51.63 7.11 23 .12 .4 .7 SMO 1.8 94 OCT 19 1718 28.17 37 37.00 118 54.27 5.43 7 .06 .8 .8 SHE 1.0 94 OCT 19 1958 10.41 39 35.88 123 24.21 9.40 7 .03 .4 .9 MAA 1.5 94 OCT 19 2012 46.73 38 48.57 122 46.22 2.25 15 .04 .2 .4 GEY 1.7 94 OCT 19 2139 37.26 37 19.89 122 6.57 0.04 10 .16 .6 .9 BLM * 1.7 94 OCT 19 2146 57.31 37 20.57 122 6.43 1.02 10 .16 2.2 .7 BLM 1.9 94 OCT 19 2302 54.85 37 19.50 122 5.87 0.00 21 .21 .4 .7 BLM * 2.0 94 OCT 19 2359 36.95 36 9.81 120 8.70 5.74 19 .25 .8 1.7 COA * 2.0 94 OCT 20 312 27.62 38 50.38 122 47.17 1.56 49 .20 .3 .8 GEY 3.1 94 OCT 20 314 49.39 38 50.08 122 47.45 0.08 10 .17 .5 2.2 GEY * 1.6 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 ------------------------------------------------------------------------------ OCT 10 010208.9% 33.367S 70.175W 109? 0.3 11 CHILE-ARGENTINA BORDER. MD 3.8 015809.5 43.456N 147.621E 33N 5.0 0.8 88 KURIL ISLANDS 024320.7 11.875N 60.253W 10G 0.6 13 WINDWARD ISLANDS. MD 4.3 042807.7* 58.367N 154.744W 33N 1.3 15 ALASKA PENINSULA 115934.0? 31.36 N 35.54 E 10G 4.4 1.8 5 DEAD SEA REGION 142721.9 5.383S 150.247E 189* 4.9 1.0 41 NEW BRITAIN REGION, P.N.G. 175036.6% 44.745N 9.784E 10G 0.5 8 NORTHERN ITALY. ML 2.5 (LDG). 175940.4 44.743N 9.610E 10G 1.0 24 NORTHERN ITALY. ML 3.3 (LDG). 180614.2? 33.37 S 72.40 W 33N 0.7 10 OFF COAST OF CENTRAL CHILE 181058.3% 44.760N 9.798E 10G 0.3 6 NORTHERN ITALY. ML 2.5 (LDG). 212908.2% 33.122S 70.458W 100G 0.3 10 CHILE-ARGENTINA BORDER. MD 3.4 220144.7* 51.634N 173.894W 33N 4.3 0.7 14 ANDREANOF ISLANDS, ALEUTIAN IS. OCT 11 001837.8* 33.757S 72.082W 33N 0.6 13 OFF COAST-CENTRAL CHILE. MD 4.5 Felt (III) at Rocas de Santo Domingo and Valparaiso. 003338.4% 44.729N 9.853E 10G 0.3 10 NORTHERN ITALY. ML 2.7 (LDG). 014526.2? 27.74 N 129.40 E 33N 5.0 5.1 0.9 35 RYUKYU ISLANDS 021858.0? 32.15 S 71.70 W 33N 0.5 10 NEAR COAST-CENTRAL CHILE. MD 4.0 025903.3 19.783S 66.610W 259D 4.6 0.8 73 SOUTHERN BOLIVIA 053249.1* 30.312N 91.893E 33N 4.8 1.1 30 XIZANG 133112.3 43.289N 147.317E 33N 5.0 0.6 60 KURIL ISLANDS 172551.8 43.946N 10.057E 10G 1.1 28 CENTRAL ITALY. ML 3.0 (LDG). 203119.7 33.615N 45.588E 33N 4.7 0.8 47 IRAN-IRAQ BORDER 204511.7 35.973N 100.313E 33N 4.7 0.5 33 QINGHAI, CHINA. Felt strongly in the Gonghe area. OCT 12 015547.2 23.173N 143.833E 33N 5.2 4.5 0.8 59 VOLCANO ISLANDS REGION 040158.7 18.008N 68.907W 33N 4.6 1.1 39 MONA PASSAGE 040735.4? 32.51 S 70.10 W 120G 0.3 11 CHILE-ARGENTINA BORDER. MD 3.8 045918.2* 40.156N 15.681E 33N 4.5 3.9 1.4 32 SOUTHERN ITALY 060250.6 13.762N 124.550E 33N 5.3 5.7 1.1 52 LUZON, PHILIPPINE ISLANDS. 060810.2* 13.556N 124.027E 33N 5.1 1.7 21 LUZON, PHILIPPINE ISLANDS 063423.2* 13.774N 124.591E 33N 4.8 0.9 24 LUZON, PHILIPPINE ISLANDS 072356.1* 3.412S 130.949E 33N 5.4 1.2 12 SERAM, INDONESIA 090821.2* 25.219N 121.811E 71? 4.4 0.7 33 TAIWAN 092043.1? 51.63 N 173.69 W 33N 0.9 5 ANDREANOF ISLANDS, ALEUTIAN IS. 103322.4 51.706N 173.799W 33N 5.1 4.5 1.2 96 ANDREANOF ISLANDS, ALEUTIAN IS. 114252.1 63.383N 151.312W 10G 0.6 12 CENTRAL ALASKA. ML 3.5 135926.9? 32.35 S 70.86 W 70G 0.3 10 CHILE-ARGENTINA BORDER. MD 3.5 150455.1? 13.74 N 124.53 E 33N 4.6 1.5 17 LUZON, PHILIPPINE ISLANDS 153403.7* 58.604N 150.714W 33N 0.9 9 GULF OF ALASKA 164325.4 6.932S 155.727E 33N 5.1 5.3 0.7 23 SOLOMON ISLANDS 191337.3% 33.173S 70.314W 5G 0.4 7 CHILE-ARGENTINA BORDER. MD 3.4 220153.2% 33.153S 70.307W 5G 0.3 10 CHILE-ARGENTINA BORDER. MD 3.7 OCT 13 001341.4? 31.78 S 70.45 W 130G 0.2 10 CHILE-ARGENTINA BORDER. MD 4.0 025318.0* 41.789N 141.744E 33N 4.6 0.8 16 HOKKAIDO, JAPAN REGION 031538.9? 36.29 N 141.74 E 10G 4.0 1.4 8 NEAR EAST COAST OF HONSHU, JAPAN 050428.7 1.165S 127.932E 33N 6.0 6.4 1.1 117 HALMAHERA, INDONESIA. Mw 6.5 Nineteen people injured and damage on Obi. 072930.9? 34.46 S 70.39 W 10G 0.1 8 CHILE-ARGENTINA BORDER. MD 3.3 120318.5 43.357N 146.841E 33N 5.2 4.3 0.8 89 KURIL ISLANDS 134829.8 43.880N 147.197E 33N 5.1 0.8 65 KURIL ISLANDS 152404.9* 18.951S 169.231E 33N 5.0 1.1 23 VANUATU ISLANDS 222309.7* 42.965N 148.266E 33N 5.0 5.0 1.1 28 OFF COAST OF HOKKAIDO, JAPAN 223120.0% 33.145S 70.319W 5G 0.5 10 CHILE-ARGENTINA BORDER. MD 3.6 230653.6 35.478N 120.867W 5G 0.8 48 CENTRAL CALIFORNIA. ML 3.0 (GS). 234800.7? 31.42 S 69.35 W 149? 3.9 0.9 14 SAN JUAN PROV. ARGENTINA. MD 4.6 OCT 14 005721.6 40.268N 124.871W 25G 3.9 0.8 63 NEAR COAST-NORTHERN CALIF. 010345.2 40.301N 124.903W 25G 0.5 24 NEAR COAST-NORTHERN CALIF.ML 3.1 023841.7* 9.178S 115.839E 116* 3.9 1.4 18 SOUTH OF BALI, INDONESIA 063322.5* 40.265N 124.635W 25G 0.7 26 NEAR COAST-NORTHERN CALIF.ML 3.0 101620.4? 22.46 N 121.32 E 33N 4.4 4.0 1.0 8 TAIWAN REGION 185605.5 47.422N 122.818W 10G 0.5 28 WASHINGTON. ML 2.9 (GS). Felt at Port Orchard. OCT 15 003929.5 3.741S 152.105E 33N 5.6 6.1 1.1 39 NEW IRELAND REGION, P.N.G. Felt at Rabaul, New Britain. 010639.0? 34.15 S 70.31 W 10G 0.6 5 CHILE-ARGENTINA BORDER 014801.5? 34.04 S 72.25 W 10G 0.5 8 NEAR COAST-CENTRAL CHILE. MD 3.4 152439.1 43.871N 147.756E 33N 5.1 0.9 42 KURIL ISLANDS 232106.6* 34.096N 135.323E 10G 4.4 0.7 14 NEAR S. COAST OF WESTERN HONSHU. Felt (IV JMA) at Wakayama; (II JMA) at Kobe and (I JMA) at Nara. Also felt (I JMA) at Tokushima, Shikoku. 234420.3 17.049N 146.731E 33N 4.6 1.2 26 MARIANA ISLANDS OCT 16 000648.1 9.256S 75.709W 121D 5.5 0.8 83 CENTRAL PERU. Mw 5.6 (GS), 5.6 005302.0? 31.58 S 69.72 W 150G 0.4 10 SAN JUAN PROV. ARGENTINA. MD 4.1 030918.6? 32.24 S 71.59 W 33N 0.4 10 NEAR COAST-CENTRAL CHILE. MD 3.9 051002.3 45.691N 149.265E 131D 6.3 0.8 240 KURIL ISLANDS. Mw 6.7 123154.3* 5.674N 78.362W 33N 5.0 0.6 16 SOUTH OF PANAMA OCT 17 014611.5 42.749N 111.074W 5G 0.6 15 EASTERN IDAHO. ML 3.5 (GS). Felt at Afton, Wyoming. 074036.6 60.112N 153.136W 185D 4.7 0.9 34 SOUTHERN ALASKA 135459.7* 43.540N 146.816E 33N 5.1 0.6 46 KURIL ISLANDS 192554.8 5.628S 154.562E 149D 5.5 0.8 52 SOLOMON ISLANDS OCT 18 031036.8? 16.81 S 178.98 W 500G 4.6 0.5 17 FIJI ISLANDS REGION 044624.9* 18.423N 101.857W 33N 4.6 0.9 35 GUERRERO, MEXICO 104254.8* 43.393N 147.184E 33N 5.3 4.5 0.6 66 KURIL ISLANDS 151300.2* 10.916S 75.695W 33N 5.2 0.7 43 CENTRAL PERU 171251.1 43.537N 147.059E 66D 5.7 0.6 88 KURIL ISLANDS. Mw 6.1 OCT 19 004957.8 35.488N 117.471W 5G 0.8 42 CENTRAL CALIFORNIA. ML 4.1 (GS).