The Past Week Ticker
M04, T05/GS48, W06, Th07/6.0M,6.3M, F08/6.4M,6.1M, Sa09, Su10/6.8M,6.3,6.4M,6.0M, M11/6.7M,6.8M,6.1M, T12/GS30, W13/V9.1, Th14
MTWThFSaSu-days of week; 6M-quake, V8-volcano, MC or XC-solar flare, GS30-geomagnetic stormMoon Phases and Orbit for April 2005 per Astronomy Magazine in EDT
1 last quarter, 4 perigee, 8 new moon, 16 first quarter, 16 apogee, 24 full moon, 29 perigee (#2)
..LYRID METEOR SHOWER peaks on 22 April.
..LUNAR ECLIPSE 24 April.
..GRAPH of current sunspot cycle see
http://spaceweather.com/swpod2005/30mar05/ssn_predict_l.gif
EARTH AND SUN DIGEST for April 14, 2005
Sumatran Volcano Erupts
...Week at a Glance (with time ticking)
Counts thru Wednesday
41-- Global Earthquakes of 5.0 to 5.9M (Japan-1, SoPacific-1)
11-- Global quakes of 6M or greater: 4/11 6.1M SIMEULUE, INDONESIA, 4/11 6.8M SOUTHEAST OF LOYALTY ISLANDS, 4/11 6.7M NEAR N COAST OF NEW GUINEA, PNG., 4/10 6.0M NEAR THE EAST COAST OF HONSHU, JAPAN, 4/10 6.4M KEP. MENTAWAI REGION, INDONESIA, 4/10 6.3M KEP. MENTAWAI REGION, INDONESIA, 4/10 6.8M KEP. MENTAWAI REGION, INDONESIA, 4/08 6.1M SOUTHEAST OF LOYALTY ISLANDS, 4/08 6.4M KEPULAUAN BATU, INDONESIA, 4/07 6.3M WESTERN XIZANG, 4/07 6.0M MOLUCCA SEA
300-- California and Nevada earthquakes in past week
0-- CA/NV earthquakes 4M or greater
Interactive map
Earthquake data .
--Volcanoes with ash near Jet Stream (at 5 mi/8 km): Mexico;
see SPECIAL NOTE on Krakatoa
http://Ash data
56--Sunspot No. high/low: 56 on 4/8 to 17 on 4/11
250--Largest/smallest daily area of sunspots: 250 on 4/8 to 90 on 4/11
0--X-Class Solar Flares
0--M-Class flares
(from www.sel.noaa.gov/today.html )
30--Planetary Geomagnetic A Index (high): 30 on 4/12
2 days--Kp's of 4 (or more) per 24 hours (at least five): 6 on 4/12, 7 on 4/13
3 days--Kp's of 3 per 24 hours this week (high): 2 on 4/11, 12, 14
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 05
March 0 2 8 13 5 7 8 5 5 10 15 10 18
April 0 12 17 4 9 6 8 3 9 7 8 17 (14)YR total 19 110 160 109 76 63 103 109 112 133 145 145 (75)
(Data is upgraded at the source as needed without notice.)
Northern Ash and Gas Eruptions north of latitude 23°N,
(highest plume)
CHIKURACHKI Kurile Islands, Russia 50.325°N, 155.458°E; summit elev. 1,816 m (low)
during 4-5 April weak fumarolic activity, ash deposits covering the WNW slope of the volcano
KARYMSKY Kamchatka Peninsula, Russia 54.05°N, 159.43°E; summit elev. 1,536 m (low)
during 1-8 April seismicity above background levels, ash deposits extending ~15 km SW on 2 April
KLIUCHEVSKOI Kamchatka Peninsula, Russia 56.06°N, 160.64°E; summit elev. 4,835 m (5.8 km)
seismic activity above background levels during 1-8 April, ash-and-gas plumes to 5.8 km
SHIVELUCH Kamchatka Peninsula, Russia 56.653°N, 161.360°E; summit elev. 3,283 m (3.5 km)
during 1-8 April intensive growth of the new extrusion at the W part of lava dome, the eastern and western parts of the lava dome becoming nearly level; gas-and-steam plumes to ~1 km above the 2.5-km-high lava dome
ST. HELENS Washington, USA 46.20°N, 122.18°W; summit elev. 2,549 m (low)
during 6-11 April growth of the new lava dome continuing, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash; on 6 April the smooth whaleback-shaped portion of the growing lava dome broken by numerous fractures, and the edges crumbled greatly, several deep gashes on the E, N, and W sides with frequent rockfalls and accompanying ash clouds, on 10 April the new dome continuing to fracture and spread laterally, with the dome's summit dropping by a few tens of meters during the previous 2-3 weeks, except for isolated high-standing remnants; GPS receiver 200 m N of the new dome creeping steadily NNW about 10 cm per day; new lava continuing
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 (2.7 km)
activity decreasing after an eruption beginning 5 April at 1700 producing an ash plume to the highest altitude in recorded history at the volcano, ~15.2 km; during 7-11 April seismicity at very low levels, near background; on the 11th a steam-and-ash plume rising to ~2.7 km and drifting ~280 km WSW
CANLAON Philippines 10.41°N, 123.13°E; summit elev. 2,435 m (2.5 km)
a low-energy ash emission on 7 April at 0629 generating a cloud to a height of ~2.5 km, slowly drifting SW, with only the crater and upper SW slopes of the volcano affected
COLIMA western México 19.514°N,103.62°W; summit elev. ~3,850 m (9.1 km)
during 6-11 April several explosions at Colima, resultant ash plumes rising to a maximum height of ~9.1 km
KILAUEA Hawaii, USA 19.43°N, 155.29°W; summit elev. 1,222 m (0)
during 6-11 April lava flowing into the ocean at several points
KRAKATAU Indonesia 6.10°S, 105.43°E; summit elev. 813 m (0)
on 13 April at 0100 Alert Level to 2 (on a scale of 1-4); see SPECIAL NOTE
REVENTADOR Ecuador 0.078°S, 77.656°W, summit elev. 3,562 m (4.6 km)
a change noted during 1-8 April marked by episodes of tremor, during the evening of 6 April incandescence visible; ash visible on 8 April around 1930 at a height of ~4.6 km
TALANG Sumatra, Indonesia 00.98°S, 100.68°E; summit elev. 2,896 m (3.9 km)
on 11 April during 2040-2300 an eruption producing an ash plume to a height of ~3.9 km, several days prior to the eruption a "gray ash cloud" visible rising to ~3 km; on 13 April volcanic activity decreased in comparison to the previous day with a "white-gray ash plume" to 3.2 km above Kawah Mati crater, and gas emitted from Gabuo Atas crater
TANGKUBANPARAHU western Java, Indonesia 6.77°S, 107.60°E; summit elev. 2,084 m (0)
on 13 April at 0000 an increase in seismicity and a strong scent of sulfur near Ratu crater
TUNGURAHUA Ecuador 1.47°S, 78.44°W; summit elev. 5,023 m (low)
during 7-11 April volcanic at relatively low levels; low-energy gas-and-steam plumes emitted
ULAWUN New Britain Island, Papua New Guinea 5.04°S, 151.34°E; summit elev. 2,334 m (low)
on 6 April a thin plume visible extending ~55 km to the SW
All ash elevations are in km above sea level (a.s.l.) and times are converted to UTC.
EARTHThe 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.
Sans Sumatra: 5M quakes - 15; 6M quakes - 7
05/04/13 09:50:1831.18N142.41E7.1 5.1IZU ISLANDS, JAPAN REGION
05/04/13 09:25:2733.13S72.84W30.0 5.4OFF COAST OF VALPARAISO, CHILE
05/04/13 03:58:1829.63S177.76W53.7 5.4KERMADEC ISLANDS, NEW ZEALAND
05/04/12 13:55:5210.60S13.05W10.0 5.0ASCENSION ISLAND REGION
05/04/12 02:40:2714.11N91.25W97.6 5.4GUATEMALA
05/04/11 17:08:5422.04S170.56E67.6 6.8SOUTHEAST OF LOYALTY ISLANDS
05/04/11 14:54:077.28S77.83W132.9 5.9NORTHERN PERU
05/04/11 12:20:053.50S145.89E10.0 6.7NEAR N COAST OF NEW GUINEA, PNG.
05/04/11 11:11:018.65N103.54W10.0 5.5NORTHERN EAST PACIFIC RISE
05/04/10 22:22:1535.59N140.41E43.0 6.0NEAR THE EAST COAST OF HONSHU, JAPAN
05/04/10 17:41:397.59S76.23W131.9 5.6NORTHERN PERU
05/04/09 15:53:5253.49S25.36E10.0 5.2SOUTH OF AFRICA
05/04/09 15:16:2556.24N154.59W4.3 5.9KODIAK ISLAND REGION, ALASKA
05/04/08 17:05:342.93N126.46E98.6 5.1MOLUCCA SEA
05/04/08 11:38:1723.27S169.24E10.0 6.1SOUTHEAST OF LOYALTY ISLANDS
05/04/08 06:09:4915.46N119.35E31.8 5.4LUZON, PHILIPPINES
05/04/08 05:48:370.25S97.69E19.2 6.4KEPULAUAN BATU, INDONESIA
05/04/07 21:42:0830.34N83.73E10.0 5.1WESTERN XIZANG
05/04/07 21:41:3630.53N83.69E10.0 5.1WESTERN XIZANG
05/04/07 20:04:4030.49N83.69E11.0 6.3WESTERN XIZANG
05/04/07 19:43:152.97N126.47E66.5 6.0MOLUCCA SEA
05/04/07 05:33:5541.83S83.23W10.0 5.4WEST CHILE RISE
Indonesian Quakes, by region with top to north, latest quake on top
Myanmar-India
Simeulue Island 5M quakes - 2; 6M quakes - 1
05/04/11 09:04:302.11N96.76E26.2 5.6SIMEULUE, INDONESIA
05/04/11 06:11:112.17N96.72E24.0 6.1SIMEULUE, INDONESIA
05/04/10 10:27:572.91N95.29E24.5 5.3SIMEULUE, INDONESIA
North Sumatra 5M quake - 1
05/04/11 13:39:582.36N97.08E30.0 5.1NORTHERN SUMATRA, INDONESIA
Nias Island 5M quakes - 6; 6M quakes - none
05/04/08 01:51:380.74N97.37E30.0 5.8NIAS REGION, INDONESIA
05/04/07 16:40:521.26N97.16E23.0 5.0NIAS REGION, INDONESIA
05/04/07 15:23:581.40N97.11E23.3 5.1NIAS REGION, INDONESIA
05/04/07 11:50:270.59N97.47E30.0 5.1NIAS REGION, INDONESIA
05/04/07 11:46:050.64N97.37E30.0 5.6NIAS REGION, INDONESIA
05/04/07 11:46:060.63N97.39E30.0 5.9NIAS REGION, INDONESIA
South Sumatra 5M quake - 1
05/04/11 00:56:066.22S103.75E35.1 5.0SOUTHWEST OF SUMATRA, INDONESIA
Mentawi Region 5M quakes - 16; 6M quakes - 3
05/04/13 17:29:351.62S99.81E33.2 5.2KEPULAUAN MENTAWAI REGION, INDONESIA
05/04/13 02:59:351.70S99.80E33.1 5.3KEP. MENTAWAI REGION, INDONESIA
05/04/12 04:30:001.75S99.75E30.0 5.3KEPULAUAN MENTAWAI REGION, INDONESIA
05/04/12 04:17:331.53S99.50E38.7 5.2KEP. MENTAWAI REGION, INDONESIA
05/04/12 03:54:441.75S99.81E33.2 5.3KEP. MENTAWAI REGION, INDONESIA
05/04/12 01:27:481.78S99.63E25.7 5.2KEP. MENTAWAI REGION, INDONESIA
05/04/12 01:24:511.65S99.58E23.1 5.1KEP. MENTAWAI REGION, INDONESIA
05/04/11 18:51:561.70S99.68E30.0 5.4KEP. MENTAWAI REGION, INDONESIA
05/04/10 17:24:391.60S99.69E30.0 6.4KEP. MENTAWAI REGION, INDONESIA
05/04/10 14:47:241.64S99.59E30.0 5.1KEP. MENTAWAI REGION, INDONESIA
05/04/10 14:25:391.60S99.58E30.0 5.2KEP. MENTAWAI REGION, INDONESIA
05/04/10 13:54:161.73S99.92E30.0 5.3KEP. MENTAWAI REGION, INDONESIA
05/04/10 11:55:301.73S99.66E30.0 5.9KEP. MENTAWAI REGION, INDONESIA
05/04/10 11:45:031.64S99.52E30.0 5.5KEP. MENTAWAI REGION, INDONESIA
05/04/10 11:14:191.70S99.72E30.0 6.3KEP. MENTAWAI REGION, INDONESIA
05/04/10 10:45:501.57S99.57E30.0 5.8KEP. MENTAWAI REGION, INDONESIA
05/04/10 10:29:131.62S99.56E30.0 6.8KEP. MENTAWAI REGION, INDONESIA
05/04/07 22:50:021.52S99.55E18.6 5.1KEP. MENTAWAI REGION, INDONESIA
05/04/07 22:48:391.58S99.35E17.1 5.1KEP. MENTAWAI REGION, INDONESIA
United States And U.S. Territorial Quakes this past week
with quakes possibly felt from nearby countries:
05/04/13 21:55:1538.62N118.52W8.2 3.5NEVADA
05/04/13 04:11:3238.52N122.31W7.9 2.8NORTHERN CALIFORNIA
05/04/12 23:44:2538.77N122.73W3.2 2.9NORTHERN CALIFORNIA
05/04/12 13:53:1535.58N120.87W4.4 3.2CENTRAL CALIFORNIA
05/04/12 11:06:4632.73N116.82W19.7 3.9SOUTHERN CALIFORNIA
05/04/12 00:01:0438.60N118.52W11.6 3.0NEVADA
05/04/09 15:16:2556.24N154.59W4.3 5.9KODIAK ISLAND REGION, ALASKA
05/04/08 04:32:3846.26N73.45W18.0 3.4SOUTHERN QUEBEC, CANADA
SUN
Sunspot numbers, daily for the past week:
4/6 7 8 9 10 11 12 13
50 49 56 43 42 17 32 45
Planetary daily geomagnetic A Index/with prior consecutive 3 hr Kp's
4/06 11/ 3 2 2 3 2 3 3 3
4/07 8/ 2 2 3 2 2 2 1 1
4/08 4/ 2 0 1 1 1 1 2 1
4/09 4/ 2 1 0 1 1 2 2 1
4/10 4/ 1 0 0 1 2 2 1 1
4/11 10/ 1 1 0 1 2 3 4 3
4/12 30/ 6 5 3 4 4 3 4 4
4/13 26/ 2 4 4 4 5 5 4 4
Solar data from http://www.sec.noaa.gov/
SPECIAL NOTE
Krakatau: Three Volcanoes Coalesing
From this weeks GVN/USGS Weekly Report
"Background. Renowned Krakatau volcano lies in the Sunda Strait between Java and Sumatra. Collapse of the ancestral Krakatau edifice, perhaps in 416 AD, resulted in a 7-km-wide caldera. Remnants of this volcano formed Verlaten and Lang Islands; subsequently Rakata, Danan, and Perbuwatan volcanoes were formed, coalescing to create the pre-1883 Krakatau Island. Caldera collapse during the catastrophic 1883 eruption destroyed Danan and Perbuwatan volcanoes, and left only a remnant of Rakata volcano. The post-collapse cone of Anak Krakatau (Child of Krakatau), constructed within the 1883 caldera at a point between the former cones of Danan and Perbuwatan, has been the site of frequent eruptions since 1927."
Comments or questions are welcome.
Donald
