The Past Week Ticker

M10, T11/6.1M, W12/V8, Th13./6.3M, F14, Sa15, Su16, M17, T18, W19/6.2M, Th20


Moon for May 2004 per Astronomy Magazine in EDT

4 full moon, 6 perigee, 11 last quarter, 19 new moon, 21 apogee, 27 first quarter


The moon is at apogee (252,441 miles far) on 21 May at 8 AM EDT.


Comet NEAT is present after sunset, and may be joined by Comet LINEAR at mid month. Star maps are available at
www.spaceweather.com .



Earth and Sun Digest for May 20, 2004

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


(Source data can change without notice or correction.)


Earthquakes of 5.0 to 5.9M thru Wednesday--22 (Jap-2, SoPac-10); two quakes of 6M or greater: 5/19 6.2M TAIWAN REGION, 5/13 6.3M NEW IRELAND REGION, P.N.G.

California and Nevada earthquakes in past week--370; one quake of 4M or greater: 5/16 4.0M NEVADA

Volcanic ash near Jet Stream (at 5 mi/8 km)--none reported


Sunspot No. high and low--148 on 16 May to 87 on 19 May


Largest and smallest daily total area of sunspots--850 on 16 and 17 May from 450 on 13 May (100 =Size of Earth)

X-Class Solar Flares: none; last M-Class flares (5+/day) 5 on 27 October (Ticker has fewer MC.)

(See http://www.sel.noaa.gov/today.html )

Planetary Geomagnetic Indices: high of 13 on 13 May; last set of five or more Kp's of 4 (or more) per 24 hours: 3-6 April

Asteroid Nearest Earth in 2004: 2004 FH on 18 March by 0.125 LD



Recent Volcanic Eruptions: TWO GROUPINGS


Northern Ash and Gas Eruptions

north of latitude 23°N.


KARYMSKY Kamchatka Peninsula, Russia 54.05°N, 159.43°E; summit elev. 1,536 m

during 7-14 May, based on seismic data, possible ash-and-gas explosions to 2.5-3 km daily, on 8 May an ash plume visible more than 16 km NE of the volcano


SAKURA-JIMA Kyushu, Japan 31.58°N, 130.67°E; summit elev. 1,117 m

explosions on 15 May at 0207 and on 17 May at 1946, sending ash plumes to heights of ~1.8 km and 2.1 km , ash on 18 May at a height of ~1.2 km

SHISHALDIN Unimak Island, Aleutian Islands, USA 54.75°N, 163.97°W; summit elev. 2,857 m

during 7-14 May small explosions and seismic tremor and a weak thermal anomaly observed on 11 May, on Sunday May 16 an ash plume rising 3.2 km, with small amounts of ash


SHIVELUCH Kamchatka Peninsula, Russia 56.653°N, 161.360°E; summit elev. 2,283 m

based on seismic data, during 6-7 May three ash-and-gas explosions producing plumes to ~ 7 km, on 9 May a strong explosion with ash in Ust-Kamchatsk closing the airport


VENIAMINOF Alaska Peninsula, USA 56.17°N, 159.38°W; summit elev. 2,507 m

during 7-14 May small volcanic earthquakes, seismicity suggesting ash bursts occasionally, small ash bursts on April 25 and 28 and May 1-3, an ash plume rising to 2.4-3.0 km on May 18



Equatorial Ash and Gas Eruptions
at less than 23°N or S

ANATAHAN Mariana Islands, central Pacific Ocean 16.35°N, 145.67°E; summit elev. 788 m

during 13-17 May explosions with occasional volcanic material thrown hundreds of meters out of the crater, and steam-and-ash emissions several hundred meters above the volcano


COLIMA western México 19.514°N,103.62°W; summit elev. ~3,850 m

on 15 May low-intensity activity with an average of three ash-containing explosions daily during the previous few days, plumes to less than 5.8 km, some pyroclastic flows, on 14 May at 1528 a plume to ~5.8 km


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

during 10-17 May several ash plumes, the highest one to ~5.6 km on 13 May


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

on 12 May the Banana lava flow at end of moving toward the sea


MAYON southeastern Luzon, Philippines 13.257°N, 123.685°E; summit elev. 2,462 m

during the week of 9 May moderate steaming, on 12 May the sulfur-dioxide flux increasing from the normal level of ~500 tons per day to ~1,170 tons


NYAMURAGIRA Democratic Republic of the Congo 1.408°S, 29.20°E; summit elev. 3,058 m

on 12 May volcanic activity strong but stable, the lake's surface crusted over with three vents exhibiting Strombolian activity, the eruptive fracture with very active lava fountains reaching heights of 30-50 m, sulfur-dioxide clouds visible


PITON DE LA FOURNAISE Réunion Island, Indian Ocean 21.23°S, 55.71°E; summit elev. 2,631 m
eruption of 2 May at end on 18 May


REVENTADOR Ecuador 0.078°S, 77.656°W, summit elev. 3,562 m

during 7-8 May, lahars disrupting travel for about a day.


SANTA MARÍA Guatemala 14.756°N 91.552°W; summit elev. 3,772 m
during 10-17 May weak-to-moderate explosions producing gas-and-ash plumes to ~4.8 km


SIRUNG Lesser Sunda Islands, Indonesia 8.51°S, 124.15°E; summit elev. 862 m

eruption of "smoke and dust" around 13 May


SOUFRIÈRE HILLS Montserrat, West Indies 16.72°N, 62.18°W; summit elev. 1,052 m

volcanic activity at low levels during 7-14 May, sulfur-dioxide flux at low-to-moderate levels, reaching the lowest recorded value on 13 May (146 metric tons per day) since the major explosions and collapse event during 12-15 July 2003


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

during 12-17 May moderate emissions of steam, gas, and ash, on 12 May an ash cloud to ~8 km



Ash data is summarized from the weekly GVN/USGS report at


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


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



The earthquake data that follows are taken from U.S. Geological Survey tables available through
http://neic.usgs.gov/neis/bulletin/bulletin.html.


NOTE: The solar electron flux (red line) from 00:00 UTC 18 May until 06:00 UTC 20 May has been around two marks below the midline on the graph at Today's Space Weather,
http://www.sel.noaa.gov/today.html.
This has coincided with geomagnetic Kp's of 2 or less, a low flat solar proton curve, and seven earthquakes of 5M or more, including one 6M. This red line position with dips has correlated with several 6M quakes in the past months, location unknown, BUT timing of quakes hours later.

EARTH

FIVE Index of Global earthquakes of 5.0 magnitude or greater
DATE-(UTC)-TIME    LAT  LON    DEP   MAG  Q  COMMENTS
yy/mm/dd hh:mm:ss  deg. deg.   km 
READ UP for latest report.
04/05/20  14:43:1343.13N136.42E307.6 5.5EASTERN SEA OF JAPAN
04/05/20  08:45:1435.59N34.26W10.0   5.0AZORES ISLANDS REGION
04/05/20  07:58:2352.26S14.02E10.0   5.4SOUTHWEST OF AFRICA
04/05/19  21:04:1627.34N128.25E74.5  5.1RYUKYU ISLANDS, JAPAN
04/05/19  07:04:1122.62N121.45E20.0  6.2TAIWAN REGION
04/05/19  07:04:1422.60N121.32E42.9  5.8TAIWAN REGION
04/05/18  18:12:3015.63S173.79W95.9  5.0TONGA
04/05/18  14:23:0114.38N145.59E94.6  5.0ROTA REGION, N. MARIANA ISLANDS
04/05/17  13:08:543.21N128.31E57.5   5.2NORTH OF HALMAHERA, INDONESIA
04/05/17  08:11:497.69N126.39E34.5   5.0MINDANAO, PHILIPPINES
04/05/16  22:05:2610.83S165.47E19.1  5.3SANTA CRUZ ISLANDS
04/05/16  11:01:137.63N126.07E3.5    5.8MINDANAO, PHILIPPINES
04/05/16  10:58:3812.03S166.37E10.0  5.8SANTA CRUZ ISLANDS
04/05/16  10:32:1111.88S165.81E10.0  5.6SANTA CRUZ ISLANDS
04/05/16  07:50:2715.42S173.44W10.0  5.8TONGA
04/05/16  07:07:4034.21N141.41E45.5  5.0OFF THE EAST COAST OF HONSHU, JAPAN
04/05/16  06:04:1223.14N121.74E36.2  5.6TAIWAN
04/05/15  19:30:3914.37N93.06W10.0   5.5OFFSHORE CHIAPAS, MEXICO
04/05/14  06:52:0211.93S166.27E35.0  5.2SANTA CRUZ ISLANDS
04/05/13  23:49:1711.90S166.12E10.0  5.3SANTA CRUZ ISLANDS
04/05/13  20:17:4736.62S20.79W10.0   5.0SOUTHERN MID-ATLANTIC RIDGE
04/05/13  17:34:3711.82N144.05E35.0  5.8SOUTH OF MARIANA ISLANDS
04/05/13  17:19:0529.94S177.61W77.9  5.2KERMADEC ISLANDS, NEW ZEALAND
04/05/13  09:58:433.56S150.69E10.4   6.3NEW IRELAND REGION, P.N.G.
04/05/13  07:14:3955.49S27.70W25.0   5.1SOUTH SANDWICH ISLANDS REGION
04/05/13  07:11:5311.86S166.42E10.0  5.1SANTA CRUZ ISLANDS
04/05/13  04:00:4829.63N68.34E25.0   5.0PAKISTAN
United States Quakes this past week 
with quakes possibly felt in U.S. from nearby countries:  
04/05/18  14:23:0114.38N145.59E94.6  5.0ROTA REGION, N. MARIANA ISLANDS
04/05/18  13:48:0152.11N176.39E92.1  4.5RAT ISLANDS, ALEUTIAN ISLANDS
04/05/17  21:41:1235.54N120.84W6.3   3.4CENTRAL CALIFORNIA
04/05/17  13:03:3746.94N123.19W41.4  2.7WASHINGTON
04/05/17  02:19:5451.70N179.46E90.5  4.4RAT ISLANDS, ALEUTIAN ISLANDS
04/05/16  21:32:2944.03N128.16W10.0  4.0OFF COAST OF OREGON
04/05/16  19:18:2933.99N118.39W9.1   2.5GREATER LOS ANGELES AREA, CA.
04/05/16  01:29:4037.27N114.96W0.0   4.0NEVADA
04/05/14  00:41:1944.82N111.13W8.2   3.0WESTERN MONTANA
04/05/13  23:18:0319.17N66.87W29.8   3.2PUERTO RICO REGION
04/05/13  19:43:1447.92N124.25W0.0   3.1OLYMPIC PENINSULA, WASHINGTON
04/05/13  17:34:3711.82N144.05E35.0  5.8SOUTH OF MARIANA ISLANDS
04/05/13  08:48:2218.97N67.77W25.1   2.8MONA PASSAGE
04/05/13  06:04:2833.65N116.74W16.1  3.1SOUTHERN CALIFORNIA
04/05/13  03:21:0763.12N150.57W114.0 3.8CENTRAL ALASKA
Late listings
04/05/12  07:33:4839.08N119.00W7.4   3.0NEVADA
04/05/11  23:37:4633.76N118.98W6.0   3.2CHANNEL ISLANDS REGION, CALIFORNIA
YEARS OF MONTHLY COUNTS of Earthquakes of 6 or greater Magnitude
in the World[/b], per USGS/NEIC Preliminary Global Report
 YEAR:   93  94  95  96  97  98  99  00  01  02  03  04
March     0   2   8  13   5   7   8   5   5  10  15  10
April     0  12  17   4   9   6   8   3   9   7   8  17
May       3  15  17   8   9   6   9   5   8   7  16  (5)
YR total 19 110 160 109  76  63 103 109 112 133 145 (56)
SUN
Sunspot numbers for the past week:
5/12  13  14  15  16  17  18  19  
  83 107  98 117 148 147  91  87
Planetary geomagnetic A Indices for same period 
  11  13   8   9   4   5   4   6

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

SPECIAL NOTE:


Silent Earthquake in Western Washington State

quote:

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A slow earthquake has apparently begun under western Washington, and UW
scientists believe it will provide insight into stresses that eventually will
lead to the region's next major earthquake.

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