Earth and Sun Digest 2004/08/12 ANOTHER PERFECT STORM?
Posted by Canie on August 12, 2004 at 21:24:35:

The Past Week Ticker

M02, T03, W04, Th05, F06, Sa07/6,0M, Su08, M09, T10/6.0M, W11/MC, Th12

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



Moon for August 2004 per Astronomy Magazine in EDT

7 last quarter, 11 apogee, 15 new moon, 23 first quarter, 27 perigee, 29 full moon

The Moon is at perigee (226,866 miles near) on 27 August.





Earth and Sun Digest for August 12, 2004

ANOTHER PERFECT STORM?

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




California and Nevada earthquakes in past week--424; no quakes of 4M or greater

Interactive map at
http://quake.wr.usgs.gov/recenteqs/latest.htm , see left lower corner

Global Earthquakes of 5.0 to 5.9M thru Wednesday--12 (Jap-1, SoPac-3); two 6M quakes: 8/10 6.0M HINDU KUSH REGION, AFGHANISTAN, 8/07 6.0M SOUTH OF THE ALEUTIAN ISLANDS

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

Volcanic ash near Jet Stream (at 5 mi/8 km)--none, but ash near 7 km in Indonesia and Mexico

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



Sunspot No. high and low--115 on 11 August from 36 on 5 August

Largest and smallest daily area of sunspots--1110 on 11 August from 170 on 5 August (100=Earth)

X-Class Solar Flares: none; last M-Class flares (5+/day) 5 on 13 July (Ticker has fewer MC.)

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

Planetary Geomagnetic A Indices: high of 20 on 7 August; five or more Kp's of 4 (or more) per 24 hours: 22 thru 27 July; high no. of Kp's of 3 per 24 hours this week: five on 11 August

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





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





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 30 July to 6 August seismicity slightly above background levels



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

on 4 August at 0505 an ash plume to ~5 km



SPURR southwestern Alaska, USA 61.299°N, 152.251°W; 3,374 m

elevated levels of seismicity during 30 July to 6 August, relatively constant for the last several weeks, no indications of eruption imminent, a circular collapse pit noted in the snow/ice cover



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

no visual observations of ash emissions since 22 July, occasional low-level steam plumes





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

around 7-9 August an average of less than three ash-containing explosions per day, ash plumes not exceeding 6.8 km



GALERAS Colombia 1.22°N, 77.37°W; summit elev. 4,276 m

several ash plumes visible on satellite imagery during 7-10 August, the highest about 6 km



KERINCI Sumatra, Indonesia 1.69°S, 101.27°E; summit elev. 3,805 m

Increased volcanic activity during late July



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

during August 5-9, no lava entering the sea, surface lava flows active on the coastal flat and the Pulama pali fault scarp over 5-6 August



MARAPI Sumatra, Indonesia 0.38°S, 100.47°E; summit elev. 2,891 m

during early August ash explosions to 3.9 km



PITON DE LA FOURNAISE Réunion Island, Indian Ocean 21.23°S, 55.71°E; summit elev. 2,631 m

ground deformation of late June continuing through 9 August, possibly a precursor to an eruption



SEMERU Java, Indonesia 8.11°S, 112.92°E; summit elev. 3,676 m

during 5-10 August several ash clouds, the highest rising cloud reaching ~7.6 km



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

volcanic activity at low levels during 30 July to 6 August, the sulfur-dioxide flux varying between 90 and 280 metric tons per day, lower than the long-term eruption average of ~500 metric tons per day



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

volcanic events low from 24 July to 9 August, during 4-9 August occasional explosion earthquakes







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 Daily Kp values
yy/mm/dd hh:mm:ss deg. deg. km

READ UP for latest report.

04/08/12 14:01:380.33S125.09E41.7 5.1MOLUCCA SEA
04/08/11 23:02:243.06S80.68W43.6 5.1PERU-ECUADOR BORDER REGION2 2 3 4 3 3 3 3
04/08/11 15:48:2738.37N39.17E10.0 5.4EASTERN TURKEY
04/08/11 Lunar Apogee
04/08/10 10:26:1427.20N103.74E10.0 5.2SICHUAN-YUNNAN-GUIZHOU RG, CHINA4 1 2 2 3 4 3 3
04/08/10 06:24:3219.60S173.31W43.5 5.2TONGA
04/08/10 06:13:3139.66N142.03E46.8 5.4NEAR EAST COAST OF HONSHU, JAPAN
04/08/10 05:37:063.14S150.37E19.0 5.5NEW IRELAND REGION, P.N.G.
04/08/10 05:26:533.10S150.36E27.5 5.3NEW IRELAND REGION, PAPUA NEW GUINEA
04/08/10 01:47:3336.46N70.78E206.7 6.0HINDU KUSH REGION, AFGHANISTAN
04/08/09 20:36:229.83N125.45E79.1 5.0MINDANAO, PHILIPPINES2 2 4 3 2 3 3 4
04/08/08 No quakes of 5M or greater2 2 1 0 2 2 2 2
04/08/07 14:18:346.23S95.68E20.6 5.4SOUTHWEST OF SUMATRA, INDONESIA3 3 5 4 4 3 2 3
04/08/07 09:30:1651.72N166.43W8.0 6.0SOUTH OF THE ALEUTIAN ISLANDS
04/08/06 14:35:2612.44N95.02E23.4 5.5ANDAMAN ISLANDS, INDIA REGION3 1 1 1 2 2 3 3
04/08/05 21:51:1923.68N44.83W10.0 5.2NORTHERN MID-ATLANTIC RIDGE1 1 0 2 2 2 3 3
04/08/05 01:46:4513.92N146.48E10.0 5.3ROTA REGION, N. MARIANA ISLANDS


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

04/08/11 09:11:0435.56N120.80W7.4 3.4CENTRAL CALIFORNIA
04/08/10 14:17:1837.45N117.08W5.9 3.5NEVADA
04/08/08 22:05:0240.71N124.06W20.6 3.1NORTHERN CALIFORNIA
04/08/08 11:16:0051.97N166.32W28.3 4.5SOUTH OF ALEUTIAN ISLANDS
04/08/08 06:23:3643.53N126.87W10.0 3.9OFF COAST OF OREGON
04/08/07 14:08:5651.33N178.21W49.3 4.6ANDREANOF ISLANDS, ALEUTIAN IS.
04/08/07 09:30:1651.85N166.45W8.0 6.0SOUTH OF ALEUTIAN ISLANDS
04/08/07 07:32:0740.31N124.61W19.7 3.5OFFSHORE NORTHERN CALIFORNIA
04/08/06 22:47:1537.28N121.65W9.1 2.9NORTHERN CALIFORNIA
04/08/06 16:28:2633.46N123.78W10.0 3.9OFF COAST OF CALIFORNIA
04/08/05 01:46:4513.92N146.48E10.0 5.3ROTA REGION, N. MARIANA ISLANDS


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

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 7
June 1 11 12 12 3 3 3 22 10 14 12 10
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 (3)

YR total 19 110 160 109 76 63 103 109 112 133 145 (78)

SUN

Sunspot numbers, daily for the past week:
8/4 5 6 7 8 9 10 11
62 36 52 71 77 101 93 115
Planetary geomagnetic A Indices, daily (eight Kp's for same period)
4 7 7 20 5 13 14 13





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



SPECIAL NOTE:



Another "Perfect Storm"?



On October 30, 1991, there was a real "perfect storm", labeled as such by the National Weather Service, and after which the book and movie were written. For pictures and more, see

http://www.ncdc.noaa.gov/oa/satellite/satelliteseye/cyclones/pfctstorm91/pfctstorm.html

SEE ALSO:

Volcanoes, height of ash and gas;

Sea temperature anomaly map (change from normal at
http://www.elnino.noaa.gov/ )

Here is the website for NOAA's research group:

http://www.gfdl.noaa.gov/





Comments or questions are welcome.



Donald J. Boon, editor,