EARTH AND SUN DIGEST 2004/12/16 Volcano Erupts on Perigee
Posted by Canie on December 20, 2004 at 13:18:16:

The Past Week Ticker

M06/6.7M, T07, W08, Th09, F10, Sa11, Su12/GS36,V10.7, M13/6.0M, T14/6.8M, W15, Th16

MTWThFSaSu-days of week; 6M-quake, V8-volcano, MC or XC-solar flare, GS-geomagnetic storm



Moon for December 2004 per Astronomy Magazine in EDT

4 last quarter, 11 new moon, 12 perigee, 18 first quarter, 26 full moon, 27 apogee

The Moon is at apogee (252,580 miles far) on 27 December.



EARTH AND SUN DIGEST for December 16, 2004

Indonesian Volcano Erupts on Perigee

...Week at a Glance (with time ticking)




California and Nevada earthquakes in past week--341; one quake of 4M or greater: 12/12 4.1M NORTHERN CALIFORNIA

Interactive map at
http://quake.wr.usgs.gov/recenteqs/latest.htm

Global Earthquakes of 5.0 to 5.9M thru Wednesday--14 (Japan-1, SoPacific-4); two quakes of 6M or greater: 12/14 6.8M CAYMAN ISLANDS REGION, 12/13 6.0M EL SALVADOR.

Earthquake data from
http://neic.usgs.gov/neis/bulletin/bulletin.html .

Volcanic ash near Jet Stream (at 5 mi/8 km)--Sulawesi, Indonesia

Ash data from
http://www.volcano.si.edu/reports/usgs



Sunspot No. high and low--39 on 9 and 10 December to 16 on 11 December

Largest and smallest daily area of sunspots--170 on 15 December from 40 on 10 December (100=Earth-size)

X-Class Solar Flares: none; last M-Class flares (5+/day): five on 15 August (See updating site at
http://www.sel.noaa.gov/today.html .)

Planetary Geomagnetic A Indices: high of 36 on 12 December; five or more Kp's of 4 (or more) per 24 hours: six on 12 December; high no. of Kp's of 3 per 24 hours this week: four on 10 December



(Data is upgraded at the source as needed without notice.)





RECENT VOLCANIC ERUPTIONS



Northern Ash and Gas Eruptions north of latitude 23°N.



MIYAKE-JIMA Izu Islands, Japan 34.08°N, 139.53°E; summit elev. 815 m

volcanic activity at Miyake-jima from the summer of 2000 continuing through early December, the sulfur-dioxide flux remaining high through November 2004, with 3,000-10,000 tons emitted per day, constant since October 2002, on 30 November a minor eruption after a 2-year lull, several minor eruptions following, the most recent eruption occurring on 9 December


ST. HELENS Washington, USA 46.20°N, 122.18°W; summit elev. 2,549 m

during 8-14 December growth of the new lava dome continuing and accompanied by intermittent emissions of steam and ash, consistent with a continuing, slow rise of magma driving uplift of the crater floor and feeding the extrusion of lava onto the surface, the overall low rates of seismicity and gas emission suggesting the lava reaching the surface gas poor, aerial views of the crater on 11 December showing the new lava dome increasingly fractured as a new, ambiguous, pattern of growth emerging





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

during 8-14 December explosions continuing, on 13 December plumes drifting NE



ERTA ALE Ethiopia; 13.60°N, 40.67°E; summit elev. 613 m

on 4 December new activity within North crater with a solidified lava bulge filling about 4/5 of the crater floor and degassing from several small hornitos, during

the evening ten small incandescent vents visible, in the morning two plumes rising above the volcano



FUEGO Guatemala 14.47°N, 90.88°W; summit elev. 3,763 m

several small explosions during 8-14 December, producing plumes to ~4.4 km, small

avalanches of volcanic blocks



KILAUEA Hawaii, USA 19.43°N, 155.29°W; summit elev. 1,222 m

during 8-14 December surface lava flows visible along all three arms of the PKK lava flow, by 13 December lava entering the sea at the E Lae`apuki delta, all vents were incandescent in the crater of Pu`u `O`o



MANAM offshore New Guinea, Papua New Guinea 4.10°S, 145.06°E; summit elev. 1,807 m

during 8-14 December moderate eruptions, satellite imagery of a plume at a height of ~4.6 km



NYIRAGONGO Democratic Republic of the Congo 1.52°S, 29.25°E; summit elev. 3,469 m

faint sulfur-dioxide plumes visible on satellite imagery on 8 and 10 December



SANTA MARÍA Guatemala 14.756°N 91.552°W; summit elev. 3,772 m

during 8-14 December weak-to-moderate explosions, producing plumes to a maximum height of 5.3 km, block-lava avalanches continuing



SOPUTAN Sulawesi, Indonesia 1.11°N, 124.73°E; summit elev. 1,784 m

an eruption on 11 December around 1650 producing an E-drifting ash cloud to ~2.8 km, an eruption cloud visible on satellite imagery on 12 December at 0125 at a height of ~10.7 km




TUNGURAHUA Ecuador 1.47°S, 78.44°W; summit elev. 5,023 m

during 12-14 December small-to-moderate explosions, emissions of steam, gas, and small amounts of ash to a maximum height of 7 km





All ash elevations are in km above sea level (a.s.l.) and times are converted to UTC.





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.

12/16 End of Perigee Week
04/12/16 00:10:0524.12N122.31E53.1 5.0TAIWAN REGION
12/15 1 1 2 1 1 2 2 2
04/12/15 06:47:0581.46N4.02W10.0 5.0NORTH OF SVALBARD
12/14 0 1 2 3 2 1 2 2
04/12/14 23:20:1419.03N81.34W10.0 6.8CAYMAN ISLANDS REGION
04/12/14 05:56:0944.11N141.75E10.0 5.8HOKKAIDO, JAPAN REGION
12/13 4 3 3 1 1 2 1 1
04/12/13 15:23:4113.37N89.51W61.7 6.0EL SALVADOR
04/12/13 12:00:128.06S125.12E10.0 5.5EAST TIMOR REGION
12/12 5 4 5 5 4 5 3 3
04/12/12 21:19:142.61S139.06E10.3 5.1NEAR THE NORTH COAST OF PAPUA, INDONESIA
04/12/12 19:36:5644.37S82.14W10.0 5.4WEST CHILE RISE
04/12/12 16:03:363.48S145.18E10.0 5.5NEAR NORTH COAST OF NEW GUINEA, P.N.G.
12/12 Lunar Perigee
12/11 1 1 3 2 4 3 4 4
04/12/11 19:45:4518.66N64.67W47.7 5.2VIRGIN ISLANDS
04/12/11 01:55:524.74S149.74E571.7 5.3BISMARCK SEA
12/10 1 2 2 3 3 2 3 3
04/12/10 10:32:2715.40N97.02W43.4 5.3OFFSHORE OAXACA, MEXICO
04/12/10 09:42:3410.86N141.75E30.5 5.3STATE OF YAP, FED. STATES OF MICRONESIA
04/12/10 03:44:0035.67N93.16E10.0 5.1SOUTHERN QINGHAI, CHINA
04/12/10 00:53:5618.98S169.01E155.4 5.8VANUATU
12/9 2 1 1 4 2 2 2 1
04/12/09 13:11:586.85S130.21E71.8 5.0BANDA SEA
04/12/09 08:48:5924.72N92.50E33.5 5.4INDIA-BANGLADESH BORDER REGION
12/9 Beginning of perigee week


United States Quakes this past week
with quakes possibly felt in U.S. from nearby countries:

04/12/16 11:37:5133.87N118.73W0.0 3.6CHANNEL ISL REG., CALIFORNIA
04/12/16 07:29:5161.72N150.68W52.0 3.7SOUTHERN ALASKA
04/12/15 19:53:4852.57N172.22E41.3 4.9NEAR ISLANDS, ALEUTIAN ISLANDS
04/12/15 17:24:4236.88N121.62W7.6 3.1CENTRAL CALIFORNIA
04/12/15 04:16:5236.63N121.25W10.8 3.8CENTRAL CALIFORNIA
04/12/15 00:17:1544.56N116.27W5.0 3.5SOUTHERN IDAHO
04/12/14 08:22:3637.96N118.66W7.7 3.2CENTRAL CALIFORNIA
04/12/13 18:04:3662.12N148.10W25.0 3.4CENTRAL ALASKA
04/12/13 14:51:2243.68N127.43W10.0 4.5OFF COAST OF OREGON
04/12/13 12:05:4132.00N115.79W6.9 3.0BAJA CALIFORNIA, MEXICO
04/12/13 03:27:2532.17N115.85W11.2 3.0BAJA CALIFORNIA, MEXICO
04/12/13 00:58:5019.40N155.22W32.4 3.8ISLAND OF HAWAII, HAWAII
04/12/12 10:59:4362.13N148.08W26.0 3.7CENTRAL ALASKA
04/12/12 09:13:3340.70N123.87W27.2 4.1NORTHERN CALIFORNIA
04/12/12 05:05:5234.15N116.98W8.5 3.8SOUTHERN CALIFORNIA
04/12/11 19:45:4518.66N64.67W47.7 5.2VIRGIN ISLANDS
04/12/10 10:49:2932.16N115.86W6.0 3.3BAJA CALIFORNIA, MEXICO
04/12/09 09:01:1136.88N121.62W6.8 3.0CENTRAL CALIFORNIA
04/12/09 06:35:3761.35N150.20W41.0 3.5SOUTHERN ALASKA

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

July 2 10 12 7 5 9 8 9 10 5 15 11 with two 7M
August 2 14 16 6 7 8 9 12 8 12 8 4
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 12
November 0 7 10 6 7 4 15 15 10 11 13 17 with three 7M's
December 0 6 13 7 3 2 16 11 7 11 17 (3)

YR total 19 110 160 109 76 63 103 109 112 133 145(127)

SUN

Sunspot numbers, daily for the past week:
12/8 9 10 11 12 13 14 15
40 39 39 16 26 22 18 28
Planetary geomagnetic A Indices, daily (eight Kp's for same period)
10 8 10 15 36 11 7 6





Solar data from http://www.sec.noaa.gov/



SPECIAL NOTE:



Reports on Volcanoes



This Digest uses the earliest available reports on volcanic activity. There is a monthly summary published by GVN, usually a couple of months later. These and other reports are available at

http://www.volcano.si.edu/reports/



Comments or questions are welcome.



Donald J. Boon, editor.