The Past Week Ticker
M02, T03, W04, Th05/V10.6,6.5M, F06/MC, Sa07/MC, Su08/GS64, M09, T10/MC,6.2M,V8, W11/MC(2), Th12/6.5M
MTWThFSaSu-days of week; 6M-quake, V8-volcano, MC or XC-solar flare, GS30-geomagnetic stormMoon Phases and Orbit for May 2005 per Astronomy Magazine in EDT
1 last quarter, 8 new moon, 16 first quarter, 14 apogee, 23 full moon, 26 perigee, last quarter #2
EARTH AND SUN DIGEST for May 12, 2005
FIVE M-Class Solar Flares; Volcano SPECIAL REPORT
...Week at a Glance (with time ticking)
Counts thru Wednesday
14-- Global Earthquakes of 5.0 to 5.9M (Japan-1, SoPacific-3)
Three-- Global quakes of 6M or greater: 5/12 6.5M PACIFIC-ANTARCTIC RIDGE, 5/10 6.2M SOUTHWEST OF SUMATRA, INDONESIA, 5/05 6.5M SOUTH OF PANAMA
386-- California and Nevada earthquakes in past week
4-- CA/NV earthquakes 4M or greater: 5/10 4.4M NORTHERN CALIFORNIA, 5/09 4.4M NORTHERN CALIFORNIA, 5/08 4.1M NORTHERN CALIFORNIA, (5/07 4.6M OFF THE COAST OF OREGON,) 5/06 4.1M CENTRAL CALIFORNIAInteractive map
Earthquake data
1--Volcanoes with ash near Jet Stream (at 5 mi/8 km): Mexico
http://Ash data
117--Sunspot No. high/low: 117 on 5/11 from 50 on 5/5
1330/400--Largest/smallest daily area of sunspots: 1330 on 5/11 from 400 on 5/7
none--X-Class Solar Flares
5--M-Class Solar Flares (see Ticker)
(from www.sel.noaa.gov/today.html )
64--Planetary Geomagnetic A Index (high): 64 on 5/8
one day--Kp's of 4 (or more) per 24 hours (at least five): six on 5/8
three days--Kp's of 3 per 24 hours this week (high): three over 5/10-12
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 16
May 3 15 17 8 9 6 9 5 8 7 16 7 (3)YR total 19 110 160 109 76 63 103 109 112 133 145 145 (80)
(Data is upgraded at the source as needed without notice.)
Northern Ash and Gas Eruptions north of latitude 23°N,
(highest plume)
KARYMSKY Kamchatka Peninsula, Russia 54.05°N, 159.43°E; summit elev. 1,536 m (2.5M)
high seismicity through the week ending 5 May, ash-and-gas explosions during 2-3 May rising a short distance above the crater, ash deposits extending SW observed on 3 May, seismic data suggesting many possible plumes rising as high as 2.5 km
SHIVELUCH Kamchatka Peninsula, Russia 56.653°N, 161.360°E; summit elev. 3,283 m (5.3 km)
growth of lava dome continuing during 30 April-6 May with a new extrusion in the W part of the dome, ash-and-gas plumes, some rising 2 km above the dome, frequent
SPURR southwestern Alaska, USA 61.299°N, 152.251°W; 3,374 m (0)
an 500-m-long debris flow from the ice and snow ESE of the summit melt pit seen from Anchorage and confirmed by overflight on 2 May, similar in size and location to those observed in July 2004, clear views of the melt pit showing increased steam emanating from recently exposed rock around the lake, which coalesced to form a weak steam plume rising above the rim of the melt pit, the lake level decreasing since 25 April
ST. HELENS Washington, USA 46.20°N, 122.18°W; summit elev. 2,549 m (?)
intermittent glow from the growing lava dome through much of the night of 4-5 May, seismic- and ground-deformation activity unchanged
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 (4.5 km) (see SPECIAL NOTE)
CANLAON Philippines 10.41°N, 123.13°E; summit elev. 2,435 m (low)
current level of activity not requiring any evacuation, ongoing ash emissions only a concern on the upper slopes of the volcano, regular mild ash-and-steam clouds rising less than 800 m
COLIMA western México 19.514°N,103.62°W; summit elev. ~3,850 m (7.6 km)
several explosions during 4-10 May, with local light ashfall, ash to a maximum altitude of 7.6 km on 10 May
FUEGO Guatemala 14.47°N, 90.88°W; summit elev. 3,763 m (low)
a lava flow on 9 May extending ~100 m S for almost 4 hours, small plumes 200-300 m high
LANGILA New Britain Island, Papua New Guinea 5.53°S, 148.42°E; summit elev. 1,330 m (?)
between 28 April and 4 May sub-continuous forceful emissions of thick white to gray ash-laden clouds to 2.1 km; projections of incandescent lava frequent during latter part of the period, on the afternoon of 4 May the emissions changing to dark ash clouds and explosions with booming noises, a thin plume from 4 May seen on satellite imagery and extending over 100 km NW, on 5th activity continuing and a lava flow also produced
LASCAR northern Chile 23.37°S, 67.73°W; summit elev. 5,592 m (?)
an eruption seen on satellite imagery early on 4 May, an ash plume rising into the 4.5-10.6 km range and moving SE
KILAUEA Hawaii, USA 19.43°N, 155.29°W; summit elev. 1,222 m (lava)
A third ocean entry in the East Lae`apuki area becoming active on 5 May; that entry and the Far East Lae`apuki entry both fed by lava falls down the old sea cliff and relatively small; based on the brighter glow the Kamoamoa entry thought more substantial; by the morning of 9 May lava streaming over the old sea cliff in four locations-two falls fed ocean entries and two falling onto an old delta and the branch of the PKK flow feeding East Lae`apuki full of breakouts on 9 May, the next day the middle branch of the PKK flow developing an open-channel stream on the Pulama pali 10-20 m wide, 500-600 m long, and moving rapidly
MANAM offshore New Guinea, Papua New Guinea 4.10°S, 145.06°E; summit elev. 1,807 m (3 km)
a thin plume extending 55 km NW on 4 May on satellite imagery, the ash cloud remaining below 3 km
PACAYA southern Guatemala 14.38°N, 90.60°W; summit elev. 2,552 m (3.4 km)
lava emission during 4-9 May, on 4 May three lava flows active, extending 100 m down the SW flank, on 9 May two flows from the base of the intracrater cone active, reaching 200 m down the W flank, plumes from the MacKenney Cone rose as high as 3.4 km above the crater
SANTA MARÍA Guatemala 14.756°N 91.552°W; summit elev. 3,772 (5.1 km)
continuing explosive activity from Santa María's Santiaguito lava-dome complex during 4-9 May sending ash columns as high as 5.1 km, pyroclastic flows 500-3,000 m long
SOUFRIÈRE HILLS Montserrat, West Indies 16.72°N, 62.18°W; summit elev. 1,052 m (0)
steam venting during the week of 29 April-6 May from the NW side of crater, sulfur dioxide flux an average of 439 metric tons/day, below the long-term average for the eruption (500 tons/day)
All ash elevations are in km above sea level (a.s.l.) and times are converted to UTC.
EARTH
FIVE Index of Global earthquakes of 5.0 magnitude or greaterDATE-(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 - 12
05/05/12 11:15:3457.45S139.17W10.0 6.5PACIFIC-ANTARCTIC RIDGE
05/05/10 23:50:3843.76N143.27E158.3 5.2HOKKAIDO, JAPAN REGION
05/05/10 21:17:135.64S154.43E89.5 5.5BOUGAINVILLE REGION, P.N.G.
05/05/10 14:36:2251.23N178.39W27.5 5.1ANDREANOF ISLANDS, ALEUTIAN IS.
05/05/10 06:40:2142.80S42.32E10.0 5.3PRINCE EDWARD ISLANDS REGION
05/05/09 08:12:4620.04S168.83E49.2 5.3LOYALTY ISLANDS
05/05/09 04:44:331.86S137.40E27.9 5.4NEAR N COAST OF PAPUA, INDONESIA
05/05/08 19:51:1835.04S17.21W10.0 5.2SOUTHERN MID-ATLANTIC RIDGE
05/05/08 17:07:3620.34N109.15W10.0 5.9REVILLA GIGEDO ISLANDS REGION
05/05/05 23:41:535.10N82.36W10.0 5.9SOUTH OF PANAMA
05/05/05 19:12:185.62N82.49W10.0 6.5SOUTH OF PANAMA
05/05/05 13:12:4819.97S66.47E10.0 5.5MAURITIUS - REUNION REGION
Indonesian Quakes, by region with top to north, latest quake on top
Bay of Bengal 5M quake - 1
05/05/09 14:03:5916.03N92.88E10.0 5.0BAY OF BENGAL
North Sumatra 5M quakes - 2
05/05/09 01:30:525.10N94.81E30.0 5.2NORTHERN SUMATRA, INDONESIA
05/05/05 01:14:475.28N94.23E30.0 5.1NORTHERN SUMATRA, INDONESIA
Nias Island 5M quakes - 1
05/05/10 22:29:431.22N97.18E24.5 5.2NIAS REGION, INDONESIA
Southwest of Sumatra 5M quake - 1
05/05/10 01:09:076.20S103.12E30.0 6.2SOUTHWEST OF SUMATRA, INDONESIA
United States And U.S. Territorial Quakes this past week
with quakes possibly felt from nearby countries:
05/05/12 11:00:5942.84N128.71W10.0 3.6OFF COAST OF OREGON
05/05/10 20:21:1040.95N121.76W18.0 4.4NORTHERN CALIFORNIA
05/05/10 14:36:2251.23N178.39W27.5 5.1ANDREANOF ISLANDS, ALEUTIAN IS.
05/05/09 22:37:3938.79N122.75W5.0 4.4NORTHERN CALIFORNIA
05/05/09 17:48:1134.80N116.28W5.1 3.2SOUTHERN CALIFORNIA
05/05/09 12:22:4918.73N64.14W44.6 4.6VIRGIN ISLANDS
05/05/08 10:35:5537.84N122.22W6.1 3.4SAN FRANCISCO BAY AREA, CALIF.
05/05/08 09:46:1814.79N146.67E53.9 4.9ROTA REGION, N. MARIANA ISLANDS
05/05/08 08:43:5538.38N122.17W9.6 4.1NORTHERN CALIFORNIA
05/05/07 04:30:3044.50N129.87W10.0 4.6OFF THE COAST OF OREGON
05/05/06 15:09:5051.29N178.74E28.8 4.7RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA
05/05/06 12:03:5346.20N122.19W0.0 2.6MOUNT ST. HELENS AREA, WASHINGTON
05/05/06 07:32:5834.41N119.94W12.1 2.8SANTA BARBARA CHANNEL, CALIFORNIA
05/05/06 04:44:2132.34N115.17W6.9 3.1BAJA CALIFORNIA, MEXICO
05/05/06 02:29:0935.03N119.18W6.8 4.1CENTRAL CALIFORNIA
05/05/06 02:07:1335.03N119.18W13.5 3.2CENTRAL CALIFORNIA
05/05/05 17:52:4756.97N145.82W2.0 4.0GULF OF ALASKA
05/05/05 10:25:5152.53N168.89W42.7 4.2FOX ISLANDS, ALEUTIAN ISLANDS
05/05/05 06:07:3640.28N126.09W10.0 3.0OFF THE COAST OF NORTHERN CALIFORNIA
05/05/04 09:59:4818.21N145.20E281.3 4.2PAGAN REG., N. MARIANA ISLANDS
SUN
Sunspot numbers, daily for the past week:
5/4 5 6 7 8 9 10 11
61 50 66 55 79 106 106 117
Planetary daily geomagnetic A Index/with prior consecutive 3 hr Kp's
5/04 7/ 3 3 1 1 1 2 2 1
5/05 6/ 1 1 1 3 1 2 2 1
5/06 4/ 1 0 0 1 2 2 2 2
5/07 10/ 2 1 0 1 2 2 3 4
5/08 64/ 6 6 4 5 7 6 4 4
5/09 11/ 3 3 1 1 1 2 3 4
5/10 10/ 3 3 3 2 2 2 2 2
5/11 11/ 1 0 2 3 2 3 3 4
Solar data from http://www.sec.noaa.gov/
SPECIAL NOTE
Anatahan of the Northern Marianas REALLY Spreads
ANATAHAN Mariana Islands, central Pacific Ocean 16.35°N, 145.67°E; summit elev. 788 m (plume maximum height--4.5 km)
Activity surged to a moderately high level on 5 May, when an extensive ash-and-steam plume to 4.5 km a.s.l. (15,000 feet) was visible in all directions. Ash extended 768 km N, 130 km S to northern Saipan, and 111 km W. VOG extended in a broad swath from 3,000 km W, over the Philippine Islands, to 1,000 km N of Anatahan. By 9 May harmonic tremor amplitude had decreased to near background levels, with a corresponding drop in eruptive activity. As of 10 May the Air Force Weather Agency was reporting ash to about 3 km a.s.l. (10,000 feet) extending 400 km W and an area of VOG less than half that noted on 5 May.
Background. The elongate, 9-km-long island of Anatahan in the central Mariana Islands consists of two coalescing volcanoes with a 2.3 x 5 km, E-W-trending summit depression formed by overlapping summit calderas. The larger western caldera is 2.3 x 3 km wide and extends eastward from the island's 788 m high point. Ponded lava flows overlain by pyroclastic deposits fill the caldera floor, whose SW side is cut by a fresh-looking smaller crater. The summit of the lower eastern cone is cut by a 2-km-wide caldera with a steep-walled inner crater whose floor is only 68 m above sea level. Sparseness of vegetation on the most recent lava flows on Anatahan indicated that they were of Holocene age, but the first historical eruption of Anatahan did not occur until May 2003, when a large explosive eruption took place forming a new crater inside the eastern caldera.
Sources: Emergency Management Office of the Commonwealth of the Mariana Islands and the US Geological Survey Hawaiian Volcano Observatory
Anatahan Information from the Global Volcanism Program
Comments or questions are welcome.
Donald
