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Posted by Canie on April 08, 2004 at 16:45:02:
The Past Week Ticker
M29, T30, W31, Th01, F02, Sa03/6.0M, Su04, M05/6.2M,6.6M,MC, T06/MC, W07, Th08 Moon for April 2004 per Astronomy Magazine in EDT
5 full moon, 7 perigee, 11 last quarter, 19 new moon, 23 apogee, 27 first quarter
The moon is at perigee (226,519 miles near) on 10:25 PM EDT on 7 April. A partial solar eclipse will be seen only south of Equator on 19 April
The Lyrid Meteor Shower peaks around midnight of 21 April, with visibility assisted by the New Moon.
A total lunar eclipse occurs on May 4 but is not visible in U.S. Earth and Sun Digest for April 8, 2004
ASTEROIDS AND COMETS
...at a Glance (with time ticking) (Source data can change without notice or correction.) Earthquakes of 5.0 to 5.9M thru Wednesday--13 (Jap-1, SoPac-4); three quakes of 6M or greater: 4/05 6.6M HINDU KUSH REGION, AFGHANISTAN, 4/05 6.2M TONGA, 4/03 6.0M NEAR EAST COAST OF HONSHU, JAPAN
California and Nevada earthquakes in past week--294; no quakes of 4M or greater
Volcanic ash near Jet Stream (at 5 mi/8 km)--none
Sunspot No. high and low--100 on 1 April to 57 on 7 April
Largest and smallest daily total area of sunspots--540 on 1 April to 210 on 7 April (100 = 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 23 on 3 April; last set of five or more Kp's of 4 or more per 24 hours: 3-6 April Near Earth Asteroids: New pass between Earth and Moon:
2004 FY 15 on 27 March by 0.6 LD's, after
2004 FH on 18 March by 0.125 LD, which is still closest of the year.
Follow asteroids at www.spaceweather.com . See also Special Note.
Comets C/2002 T7 and C/2001 Q4 are brightest around 6 May, with C/2002 T7 most likely to have a tail. See www.spaceweather.com for details. A CME related to an M-Class solar flare arrives today, and may trigger a lesser geomagnetic storm.
Recent Volcanic Eruptions: TWO GROUPINGS (REVISED)
For Northern Ash and Gas Eruptions
affecting prevailing winds blowing northeast from latitude 23°N.
KARYMSKY Kamchatka Peninsula, Russia 54.05°N, 159.43°E; summit elev. 1,536 m
during 26 March to 2 April, ased on seismic data, plumes from ash-and-gas explosions possibly to 3.5 km every day
SHIVELUCH Kamchatka Peninsula, Russia 56.653°N, 161.360°E; summit elev. 2,283 m
during 26 March to 2 April, based on seismic data, 15 ash-and-gas explosions possibly producing plumes to 5 km during 25 and 28-31 March
For World Effects of Ash and Gas Eruptions
from winds blowing westward along the Equator at less than 23°N or S
AMBRYM Ambrym Island, Vanuatu 16.25°S, 168.12°E; summit elev. 1,334 m during March an active lava lake ANATAHAN Mariana Islands, central Pacific Ocean 16.35°N, 145.67°E; summit elev.
788 m
during 31 March to at least 4 April volcanic seismicity indicating steam and/or ash emissions to altitudes well below 1 km, as of 6 April the seismic swarm intensifying slowly DUKONO Halmahera, Indonesia 1.70°N, 127.87°E; summit elev. 1,185 m
during 31 March to 6 April ash clouds sometimes visible on satellite imagery at a height of ~3 km EPI Vanuatu 16.68°S, 168.37°E; summit elev. 833 m
an eruption in early March, the first reported activity at the largely undersea caldera since 1988 FUEGO Guatemala 14.47°N, 90.88°W; summit elev. 3,763 m
during 31 March to 6 April weak-to-moderate explosions, the highest rising ash plume reaching ~5 km on 5 April KILAUEA Hawaii, USA 19.43°N, 155.29°W; summit elev. 1,222 m
during 31 March to 5 April surface lava flows visible at the southern part of Kilauea's
rootless-shield complex SANTA MARÍA Guatemala 14.756°N 91.552°W; summit elev. 3,772 m
during 31 March to 6 April weak-to-moderate explosions, producing plumes to 5.1 km, a strong explosion on 1 April at 1106 producing a pyroclastic flow that toward the Nimá II river SOUFRIÈRE HILLS Montserrat, West Indies 16.72°N, 62.18°W; summit elev. 1,052 m
volcanic activity at moderate levels during 26 March to 2 April, vigorous steam venting was visible from several areas of the crater, but no new lava-dome growth, the sulfur-dioxide flux remaining at moderate levels TUNGURAHUA Ecuador 1.47°S, 78.44°W; summit elev. 5,023 m
during 30 March to 3 April volcanic activity at relatively low levels, but emissions of steam and ash occurring, on 4 April at 1902 an explosion producing a plume containing a moderate amount of ash to 5.8 km YASUR Tanna Island, Vanuatu 19.52°S, 169.43°E; summit elev. 361 m
eruptive activity at "normal" levels during March with an average of 500 explosions occurring per day.
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. For time changes, check the table at the end of the USGS website below.
The earthquake data that follows are taken from U.S. Geological Survey tables available through http://neic.usgs.gov/neis/bulletin/bulletin.html .
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. 04/04/08 13:24:3910.95N141.29E45.1 5.5STATE OF YAP, MICRONESIA
04/04/07 20:23:139.06N84.09W37.6 5.2COSTA RICA
04/04/07 14:49:519.57S67.23E10.0 5.1MID-INDIAN RIDGE
04/04/07 13:47:0234.24N140.27E50.1 5.2NEAR EAST COAST OF HONSHU, JAPAN
04/04/06 21:40:0152.87N34.69W10.0 5.4REYKJANES RIDGE
04/04/05 21:24:0436.49N71.02E193.6 6.6HINDU KUSH REGION, AFGHANISTAN
04/04/05 20:34:2620.43S173.91W41.3 6.2TONGA
04/04/05 20:21:1310.13S161.03E87.9 5.4SOLOMON ISLANDS
04/04/05 16:52:541.31S137.93E5.4 5.3NEAR N COAST OF PAPUA, INDONESIA
04/04/05 08:57:0123.45S175.38W20.2 5.8TONGA REGION
04/04/04 18:04:343.43S12.21W10.0 5.3NORTH OF ASCENSION ISLAND
04/04/03 23:02:0236.47N141.04E40.0 6.0NEAR EAST COAST OF HONSHU, JAPAN
04/04/03 13:29:3320.53S174.07W9.7 5.5TONGA
04/04/03 09:57:1229.93S71.79W34.5 5.5NEAR COAST OF CENTRAL CHILE
04/04/02 21:43:466.03S103.96E19.7 5.2SOUTHERN SUMATRA, INDONESIA
04/04/02 20:17:425.77S104.00E20.0 5.1SOUTHERN SUMATRA, INDONESIA
04/04/02 15:41:300.05S124.97E25.3 5.6MOLUCCA SEA
United States Quakes this past week
with quakes possibly felt in U.S. from nearby countries:
04/04/08 12:53:3933.87N118.56W10.6 2.9SANTA MONICA BAY, CALIFORNIA
04/04/07 15:54:1243.61N110.36W5.0 4.0WYOMING
04/04/07 14:02:1659.10N152.55W62.0 3.7SOUTHERN ALASKA
04/04/05 20:38:0633.42N116.97W12.2 3.4SOUTHERN CALIFORNIA
04/04/05 16:14:2638.79N122.76W2.2 3.4NORTHERN CALIFORNIA
04/04/05 14:25:2834.06N117.25W9.7 3.3GREATER LOS ANGELES AREA, CA.
04/04/05 13:20:3854.30N162.54W40.7 4.6ALASKA PENINSULA
04/04/05 11:07:0842.38N125.38W10.0 3.5NEAR COAST OF OREGON
04/04/05 10:27:1534.18N116.88W8.5 3.0SOUTHERN CALIFORNIA
04/04/04 23:34:2040.47N125.03W9.3 3.4OFFSHORE NORTHERN CALIFORNIA
04/04/04 13:45:1135.54N120.85W3.8 3.1CENTRAL CALIFORNIA
04/04/02 22:51:5135.35N117.19W5.6 3.2SOUTHERN CALIFORNIA
04/04/02 00:49:5318.44N145.65E187.4 4.4PAGAN REGION, NORTHERN MARIANA ISLANDS
04/04/01 19:03:1118.82N146.49E78.5 4.2PAGAN REGION, NORTHERN MARIANA ISLANDS
04/04/01 16:48:0940.51N123.51W0.0 2.9NORTHERN CALIFORNIA
04/04/01 09:15:3635.70N121.05W4.8 3.3CENTRAL CALIFORNIA
04/04/01 06:08:3116.86S172.69W45.0 4.7SAMOA ISLANDS REGION
04/04/01 00:02:5418.90N69.69W79.1 4.3DOMINICAN REPUBLIC REGION
Monthly Summary 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 January 2 1 13 10 4 7 5 8 10 14 10 11 with one 7M
February 1 12 13 18 7 4 6 4 14 6 5 13 with two 7M's)
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 (3) YR total 19 110 160 109 76 63 103 109 112 133 145 (37)
SUN
Sunspot numbers for the past week:
3/30 4/1 2 3 4 5 6 7
95 100 99 68 69 85 66 57
Planetary geomagnetic A Indices for same period
7 3 3 23 12 14 21 10
Solar data from http://www.sec.noaa.gov/
SPECIAL NOTE NEO FAQ SHEET FROM NASA A basic fact sheet on the possible impact of asteroids and comets on our planet is given at http://impact.arc.nasa.gov/ One interesting fact is that it takes a size of at least 50 meters for a Near Earth Object (NEO) to survive getting through Earth's atmosphere to the surface. Unfortunately, there probably will be no warning of any coming, because none are currently known to be on a collision course, and the unknown ones, well, read for yourself.
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