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| EARTH AND SUN DIGEST 2005/02/10 More Big Quakes; Sunspots Return |
The Past Week Ticker YEAR: 93 94 95 96 97 98 99 00 01 02 03 04 05 Global Earthquakes of 5.0 to 5.9M thru Wednesday--30 (Japan-2, SoPacific-3); eight quakes of 6M or greater: 2/10 6.4M SOUTHEAST OF LOYALTY ISLANDS, 2/09 6.3M BONIN ISLANDS, JAPAN REGION, 05/02/09 6.0M NORTHERN SUMATRA, INDONESIA, 2/08 6.8M VANUATU, 2/07 6.1M NEW IRELAND REGION, PAPUA NEW GUINEA, INDIA REGION, 2/05 7.1M CELEBES SEA, 02/05 6.0M SIMEULUE, INDONESIA, 2/05 6.6M SAIPAN REGION, NORTHERN MARIANA ISLANDS . California and Nevada earthquakes in past week--316; one quake 4M or greater: 2/05 4.4M NORTHERN CALIFORNIA Interactive map Earthquake data . Volcanic ash near Jet Stream (at 5 mi/8 km)--Kamchatka, Russia http://Ash data Sunspot No. high and low--60 on 9 February from 22 on 4 and 5 February Largest and smallest daily area of sunspots--490 on 9 February from 40 on 5 February (100=Earth-size) X-Class Solar Flares: none; last M-Class flares (5+/day): six on 15 January (See updating site at www.sel.noaa.gov/today.html ) Planetary Geomagnetic A Indices: high of 34 on 8 February; five or more Kp's of 4 (or more) per 24 hours: seven on 9 February; high no. of Kp's of 3 per 24 hours this week: four on 9 Febuary (Data is upgraded at the source as needed without notice.) Northern Ash and Gas Eruptions north of latitude 23°N. EBEKO Kuril Island, Russia 50.68°N, 156.02°E; summit elev. 1,156 m (1.6 km) during 28 January to 4 February heightened volcanic activity continuing, on 1 February gas-and-steam plumes to 1.6 km and drifting NE ETNA Sicily, Italy 37.73°N, 15.00°E; summit elev. 3,315 m (0) the effusive eruption beginning on 7 September 2004 continuing through 27 January 2005, on 18 January web camera recording a dense, pulsating gas plume emanating from the summit of Northeast Crater for a few minutes, during the afternoon of the 18th a new lava flow upslope along the 2,620-m eruptive fissure about 2,450 m elevation, during the afternoon of 22 January, two new lava flows from 2,400 m elevation along the same lava-tube system fed by the 2,620-m elevation vent KLIUCHEVSKOI Kamchatka Peninsula, Russia 56.06°N, 160.64°E; summit elev. 4,835 m (5.8 km) on 31 January around 1200 a mudflow traveling ~6 km down NW flank into the Kruten'kaya River, the mudflow reaching a height of a few meters, with trees covered with mud to 1.5 m, large blocks and trees carried by the flow, during 28 January to 4 February gas-and-steam plumes rising to ~5.8 km and drifting SW on 29 January and NW on January 31, on 8 February ash to 7.6 km ST. HELENS Washington, USA 46.20°N, 122.18°W; summit elev. 2,549 m (2.6 km) during 2-7 February growth of the new lava dome inside the crater continuing, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash, on the afternoon of 2 February several small ash clouds clearing the volcano's rim, drifting E, bursts of small ash clouds from the base of the lava dome on 3 February, by 7 February only steam emitted from the volcano m VENIAMINOF Alaska Peninsula, USA 56.17°N, 159.38°W; summit elev. 2,507 m (3 km) on the evening of 3 February Strombolian activity visible by residents of Perryville ~30 km from the volcano, also observed on web camera views and seen by satellite as an increase in radiated surface heat, seismicity suggesting Strombolian activity continuing through 4 February while the volcano was obscured by clouds, during 28 January to 4 February seismicity similar to levels for the previous week, during clear weather, satellite imagery showing anomalous heat at the summit cone consistent with hot blocks and ash being ejected from the active vent with the web camera showing intermittent ash plumes as high as 3 km Equatorial Ash and Gas Eruptions at less than 23°N or S EGON Lesser Sunda Islands, Indonesia 8.67°S, 122.45°E; 1,703 m (1.8 km) an eruption on 5 February at 1703 with the ejection of "glowing lava" and lapilli-sized material deposited on the volcano's S flank; an eruption on 7 February at 0502 similar in size, Before and after it a strong scent of sulfur in the villages of Hebing and Hale with one villager knocked unconscious due to the gas and all of the vegetation along a fissure on the volcano's S flank newly dead, also indicating a strong gas emission ANATAHAN Mariana Islands, central Pacific Ocean 16.35°N, 145.67°E; summit elev. 788 m (6 km) during 3-7 February Strombolian explosions, on several days ash plumes as high as ~6 km, Vog (fog composed of volcanic gases) drifting as far as 340 km SSE to Guam, decreasing visibility there to 10 km, residents of the near-by islands of Saipan and Rota complaining of health problems from the ash and vog DUKONO Halmahera, Indonesia 1.70°N, 127.87°E; summit elev. 1,185 m (1.8 km) ash explosions during 24-30 January producing ash plumes to 1.8 km GALERAS Colombia 1.22°N, 77.37°W; summit elev. 4,276 m (4.4 km) during 31 January to 7 February small gas-and-ash emissions, ash deposited in Consacá (~15 km W of the volcano) and La Florida (~10 km NW), and in the city of Pasto (~ 10 km E) KARANGETANG [Api Siau] Siau Island, Indonesia 2.47°N, 125.29°E; summit elev. 1,784 m (0) lava avalanches from the fronts of lava flows during 26 January to at least 30 January, the avalanches traveling towards several rivers: Beha Barat (750-1,200 m), Batu Awan (750-2,200 m), and Kahetang (1750 m) KILAUEA Hawaii, USA 19.43°N, 155.29°W; summit elev. 1,222 m (0) lava beginning to enter the ocean on 31 January at two entry points, the Ka`ili`ili entry to the E of the flow field the largest and fed by the large eastern arm of the PKK lava flow, the West Highcastle ocean entry supplied by the W branch of the W arm of the PKK lava flow, on 7 February lava continuing to enter the ocean with surface lava flows visible on the Pulama pali fault scarp and on the coastal flat MANAM offshore New Guinea, Papua New Guinea 4.10°S, 145.06°E; summit elev. 1,807 m (low) emissions from Manam continuing during 2-8 February POÁS Costa Rica 10.20°N, 84.233°W; summit elev. 2,708 m (0) on 25 January the level of the volcano's hot acidic crater lake rising in comparison to the previous month, intense and sustained rainfall during the previous months causing the water level to increase by ~4 m and the area of the lake increasing by ~20%, increased steaming visible from the National Park, the lake temperature remaining at 22 degrees C, with hot spots near the rim reaching up to 80 degrees C POPOCATÉPETL México 19.02°N, 98.62°W; summit elev. 5,426 m (5.5 km) a small ash-bearing emission on 3 February, no ash visible on satellite imagery SOUFRIÈRE HILLS Montserrat, West Indies 16.72°N, 62.18°W; summit elev. 1,052 m (0) during 28 January-4 February seven long-period, one volcano-tectonic, and two hybrid earthquakes recorded, on 28 January the daily sulfur-dioxide flux 410 metric tons; no significant morphological changes observed at the volcano's edifice during a flight on 1 February TUNGURAHUA Ecuador 1.47°S, 78.44°W; summit elev. 5,023 m (low) volcanic and seismic activity at low levels during 2-7 February with low-energy gas-and-steam plumes 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 Solar data from http://www.sec.noaa.gov/ SPECIAL NOTE Supervolcanoes Bigger Threat Than Comets or Asteroids? In the search for realistic apocalyptic events, search no further than the supervolcano, of which the most recent was at Lake Tabo, on the north end of Sumatra, near the site of the Christmas 9.0M earthquake. http://www.abc.net.au/news/scitech/2002/07/item20020718103959_1.htm Here is a USGS map of historical earthquakes of Northern Sumatra: http://neic.usgs.gov/neis/bulletin/neic_uhal_h.html Lake Tabo is just off the map to the lower right. A British survey ship has shown by sonar the changes on the sea floor made by the quakes. (Thanks to Chris N on Pinpoint.) size=2>http://www.newsday.com/news/nationworld/wire/sns-ap-tsunami,0,2109244,print.story?coll=sns-ap-nationworld-headlines Comments or questions are welcome. Donald J. Boon, editor. |
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