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EARTH AND SUN DIGEST 2004/09/30 Mt. St. Helens Near Eruption; California Quakes
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Posted by Canie on October 02, 2004 at 09:51:27:
(I apologize for not posting these in a more timely manner, Canie) The Past Week Ticker
M20, T21, W22, Th23, F24, Sa25, Su26, M27, T28/6.0M,6.4M, W29/V8, Th30
MTWThFSaSu-days of week; 6M-quake, V8-volcano
Moon for October 2004 per Astronomy Magazine in EDT
5 apogee, 6 last quarter, 13 new moon, 17 perigee, 20 first quarter, 28 full moon
The Moon is at apogee (251,237 miles far) on 5 October.
The perigee on 17 October is a distant 228,514 miles away.
Partial solar eclipse on 13 October.
EARTH AND SUN DIGEST for September 30, 2004
Mount St. Helens Near Eruption, California Quakes
...Week at a Glance (with time ticking)
California and Nevada earthquakes in past week--1079; five quakes of 4M or greater: /29 5.0M CENTRAL CALIFORNIA, 9/29 4.5M CENTRAL CALIFORNIA, 9/29 5.1M CENTRAL CALIFORNIA, 9/28 4.1M CENTRAL CALIFORNIA, 9/28 6.0M CENTRAL CALIFORNIA
****Interactive map at **** http://quake.wr.usgs.gov/recenteqs/latest.htm
Global Earthquakes of 5.0 to 5.9M thru Wednesday--18 (Japan-3, SoPacific-2); two 6M quakes: 9/28 6.0M CENTRAL CALIFORNIA, 9/28 6.4M SOUTH OF AFRICA
Volcanic ash near Jet Stream (at 5 mi/8 km)--Ecuador
Sunspot No. high and low--24 on 25 September from 15 on 24 September
Largest and smallest daily area of sunspots--370 on 25 September to 150 on 29 September (100=Earth)
X-Class Solar Flares: none; last M-Class flares (5+/day) five on 15 August (Ticker has fewer MC.)
(See updating site at http://www.sel.noaa.gov/today.html )
Planetary Geomagnetic A Indices: high of 12 on 23 September; five or more Kp's of 4 (or more) per 24 hours: none; high no. of Kp's of 3 per 24 hours this week: two on 28 September
(Data is upgraded at the source as needed without notice.)
RECENT VOLCANIC ERUPTIONS
Northern Ash and Gas Eruptions north of latitude 23°N.
ASAMA Honshu, Japan 36.40°N, 138.53°E; summit elev. 2,560 m (?)
KIKAI [SATSUMA-IWO-JIMA] Ryukyu Islands, Japan 30.78°N, 130.28°E; summit elev. 717 m (1.5 km)
ST. HELENS Washington, USA 46.20°N, 122.18°W; summit elev. 2,549 m (0)
a swarm of very small, shallow earthquakes (less than M 1) on the morning of 23 September, peaking about mid-day on 24 September and slowly declining through the morning of the 25th; the swarm then changing to include more than 10 larger earthquakes (M 2-2.8), the most in a 24-hour period since the last eruption in October 1986; the events continuing through 27 September at shallow depths (less than 1.6 km) below the lava dome, no magmatic gas recorded (See SPECIAL NOTE.)
SPURR southwestern Alaska, USA 61.299°N, 152.251°W; 3,374 m (0)
VENIAMINOF Alaska Peninsula, USA 56.17°N, 159.38°W; summit elev. 2,507 m (low level)
Equatorial Ash and Gas Eruptions at less than 23°N or S
COLIMA western México 19.514°N,103.62°W; summit elev. ~3,850 m (5.8 km)
DUKONO Halmahera, Indonesia 1.70°N, 127.87°E; summit elev. 1,185 m (3 km)
FUEGO Guatemala 14.47°N, 90.88°W; summit elev. 3,763 m (4.7 km)
GALERAS Colombia 1.22°N, 77.37°W; summit elev. 4,276 m (?)
KERINCI Sumatra, Indonesia 1.69°S, 101.27°E; summit elev. 3,805 m (6 km)
KILAUEA Hawaii, USA 19.43°N, 155.29°W; summit elev. 1,222 m (0)
MANAM offshore New Guinea, Papua New Guinea 4.10°S, 145.06°E; summit elev. 1,807 m (3 km)
MAUNA LOA Hawaii, USA 19.475°N, 155.608°W; summit elev. 4,170 m (0)
NYIRAGONGO Democratic Republic of the Congo 1.52°S, 29.25°E; summit elev. 3,469 m (?)
SANTA MARÍA Guatemala 14.756°N 91.552°W; summit elev. 3,772 m (?)
SOUFRIÈRE HILLS Montserrat, West Indies 16.72°N, 62.18°W; summit elev. 1,052 m (?)
TUNGURAHUA Ecuador 1.47°S, 78.44°W; summit elev. 5,023 m (8 km)
All ash elevations are in km above sea level (a.s.l.).
EARTHThe FIVE Index has the last column giving the eight daily Kp (three hourly) geomagnetic values in the same UTC time frame as the quake listings.FIVE Index of Global earthquakes of 5.0 magnitude or greater DATE-(UTC)-TIME LAT LON DEP MAG Q COMMENTS Day's Kp values yy/mm/dd hh:mm:ss deg. deg. km READ UP for latest report. 9/29 2 1 0 1 2 2 2 2 04/09/29 22:54:5435.39N118.62W5.6 5.0CENTRAL CALIFORNIA 04/09/29 18:38:105.60S76.97W26.9 5.3NORTHERN PERU 04/09/29 17:10:0435.95N120.50W11.5 5.1CENTRAL CALIFORNIA 04/09/29 02:00:5658.66S25.37W36.3 5.0SOUTH SANDWICH ISLANDS REGION 9/28 2 2 3 2 1 1 2 3 04/09/28 21:32:1815.68S74.41W26.7 5.8NEAR COAST OF SOUTHERN PERU 04/09/28 17:15:2435.81N120.37W7.9 6.0CENTRAL CALIFORNIA 04/09/28 15:29:5352.39S28.10E10.0 6.4SOUTH OF AFRICA 04/09/28 10:43:4232.42N141.34E39.8 5.0IZU ISLANDS, JAPAN REGION 04/09/28 10:41:5032.44N141.19E45.7 5.0IZU ISLANDS, JAPAN REGION 9/27 1 1 0 1 2 2 3 1 04/09/27 22:58:2532.58S71.56W27.7 5.2OFFSHORE VALPARAISO, CHILE 04/09/27 19:46:263.71S151.25E10.0 5.4NEW IRELAND REGION, P.N.G. 9/26 1 1 2 1 1 2 2 2 04/09/26 15:24:061.03N120.33E27.5 5.3MINAHASA, SULAWESI, INDONESIA 9/25 0 1 0 2 2 3 2 2 04/09/25 16:04:077.70S108.00E10.0 5.0JAVA, INDONESIA 04/09/25 02:14:100.05S123.01E83.2 5.2SULAWESI, INDONESIA 9/24 3 2 1 2 2 2 2 2 04/09/24 14:43:1128.58N112.71W10.0 5.8GULF OF CALIFORNIA 04/09/24 10:34:520.66N26.07W10.0 5.8CENTRAL MID-ATLANTIC RIDGE 9/23 4 4 2 2 2 2 2 2 04/09/23 19:24:3014.88N146.57E57.1 5.0ROTA REGION, N. MARIANA ISLANDS 04/09/23 18:52:1424.92S68.68W106.8 5.0ANTOFAGASTA, CHILE 04/09/23 10:08:2715.54S177.28W15.0 5.9FIJI REGION 04/09/23 01:55:2625.05N127.06E39.1 5.3RYUKYU ISLANDS, JAPAN 9/22 Lunar Perigee United States Quakes this past week with quakes possibly felt in U.S. from nearby countries: 04/09/30 09:55:0452.78N171.32W25.0 4.1FOX ISLANDS, ALEUTIAN ISLANDS 04/09/30 05:02:2735.95N120.51W9.7 3.5CENTRAL CALIFORNIA 04/09/29 22:54:5435.39N118.62W5.6 5.0CENTRAL CALIFORNIA 04/09/29 20:51:2354.77N160.12W9.0 4.8ALASKA PENINSULA 04/09/29 17:12:0635.95N120.49W10.2 4.5CENTRAL CALIFORNIA 04/09/29 17:10:0435.95N120.50W11.5 5.1CENTRAL CALIFORNIA 04/09/29 06:27:1937.97N118.66W7.1 3.3CENTRAL CALIFORNIA 04/09/29 01:53:3535.89N120.45W5.8 3.4CENTRAL CALIFORNIA 04/09/28 22:07:4932.08N115.85W0.3 3.1BAJA CALIFORNIA, MEXICO 04/09/28 19:31:2735.84N120.39W9.3 4.1CENTRAL CALIFORNIA 04/09/28 18:28:0351.58N176.02W45.6 4.8ANDREANOF ISLANDS, ALEUTIAN IS. 04/09/28 17:15:2435.81N120.37W7.9 6.0CENTRAL CALIFORNIA 04/09/27 02:00:0636.16N120.66W5.0 3.4CENTRAL CALIFORNIA 04/09/26 21:46:4147.76N114.24W5.0 3.7WESTERN MONTANA 04/09/26 15:54:0536.15N120.65W5.0 3.7CENTRAL CALIFORNIA 04/09/24 17:27:0338.01N118.67W10.6 3.1CENTRAL CALIFORNIA 04/09/24 15:27:2229.21N112.55W10.0 3.8GULF OF CALIFORNIA 04/09/24 14:43:1128.58N112.71W10.0 5.8GULF OF CALIFORNIA 04/09/24 07:10:0248.16N123.02W4.4 3.0STR. OF JUAN DE FUCA, WASHINGTON 04/09/24 00:07:0337.99N118.70W4.9 3.2CENTRAL CALIFORNIA 04/09/23 19:24:3014.88N146.57E57.1 5.0ROTA REGION, N. MARIANA ISLANDS 04/09/23 13:56:0518.58N65.60W26.3 3.0PUERTO RICO REGION 04/09/23 06:40:5619.54N65.20W25.1 3.6PUERTO RICO REGION YEARS OF MONTHLY COUNTS of Earthquakes of 6 or greater Magnitude in the World, per USGS/NEIC Preliminary Global Report
YEAR: 93 94 95 96 97 98 99 00 01 02 03 04 September 4 8 8 9 7 4 12 7 10 13 18 (15 with two 7M's) October 4 12 21 9 6 3 4 8 11 21 11 with one 7M YR total 19 110 160 109 76 63 103 109 112 133 145 (94) SUN Sunspot numbers, daily for the past week: 9/22 23 24 25 26 27 28 29 24 19 15 24 22 22 22 22 Planetary geomagnetic A Indices, daily (eight Kp's for same period) 16 12 6 5 4 5 8 5
SPECIAL NOTE:
Mount St. Helens to Erupt?
The Webcam five miles away updates every five minutes. See it at
http://www.fs.fed.us/gpnf/volcanocams/msh/ No guarantees!
But geologist said explosion 67% possible in next three days.
Thanks to Ruthanne, who lives in Portland, OR, for URL.
Comments or questions are welcome.
Donald J. Boon, editor.
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