EARTH AND SUN DIGEST 2004/09/30 Mt. St. Helens Near Eruption; California Quakes
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.).





EARTH

The 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.