VOLCANISM NEWS | |||||||||
National Association of Radio-Distress Signalling and Infocommunications Emergency and Disaster Information Services (EDIS) Budapest Hungary
 http://hisz.rsoe.hu/alertmap/woalert_read.php?glide=VA-20100306-25218-ISL&cat=dis&lang=eng An earthquake swarm began under Eyjafjoll volcano in January 2010. There was a 40 mm inflation of the volcano. At the beginning of March 2010 over 3000 earthquakes were measured in a 24 hour period, with a maximum at magnitude 3.1. The last eruptions at Eyjafjoll volcano were in 1821-23. The subglacial Esjufjöll volcano at the SE part of the Vatnajökull icecap, north of Öraefajökull volcano, consists of the Snaehetta central volcano and a large caldera. Most of the volcano, including the 40 sq km caldera, is covered by the icecap, but parts of the SE flank are exposed in NW-SE-trending ridges. Most of the exposed rocks are mildly alkaline basalts, but small amounts of rhyolitic rocks are also present. A large jökulhlaup that came down the Jokulsa a Breidamerkursandi along the coast SE of Vatnajökull in the beginning of September 1927 was accompanied by a sulfur stench, and on one occasion, ash fall on the Breidamerkurjökull considered to have possibly originated from Esjufjöll. Although Holocene eruptions have not been confirmed from Esjufjöll, earthquake swarms that could indicate magma movements were detected in October, 2002. Yellowstone Volcano Observatory Recent Yellowstone Earthquakes Website Monday, March 1, 2010 2:47 PM MST (Monday, March 1, 2010 21:47 UTC) 44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m) Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN February 2010 Yellowstone Seismicity Summary: During the first half of February 2010, Yellowstone continued to experience a large swarm of earthquakes on the Madison Plateau, near the northwest margin of the Yellowstone Caldera. Retrospective analysis shows that the swarm began on January 15, 2010 and picked up in intensity on the 17th of January. As of February 25, a total of 1,809 earthquakes had been automatically located for the entire swarm, including 14 with a magnitude greater than 3.0; 136 with M2.0-2.9; 1,119 with M1.0-1.9; and 540 with M0.0-0.9. By the end of February 2010, earthquake activity at Yellowstone had returned to near-background levels. READ MORE Update time = Sat Mar 6 6:00:02 MST 2010 0.7 2010/03/03 05:33:35 44.602N 110.686W 4.5 34 km (21 mi) E of West Yellowstone, MT 1.5 2010/03/02 16:07:24 44.350N 110.547W 2.0 56 km (35 mi) SE of West Yellowstone, MT 0.5 2010/03/02 16:05:39 44.564N 110.953W 10.8 16 km (10 mi) SE of West Yellowstone, MT 0.9 2010/03/02 11:26:03 44.189N 110.391W 4.0 68 km (42 mi) NE of Alta, WY 0.5 2010/03/02 08:29:37 44.548N 110.951W 11.7 18 km (11 mi) SE of West Yellowstone, MT 0.8 2010/03/01 16:06:55 44.552N 110.934W 5.6 18 km (11 mi) SE of West Yellowstone, MT 0.9 2010/03/01 13:21:24 44.540N 110.940W 10.4 19 km (12 mi) SE of West Yellowstone, MT 0.8 2010/03/01 12:56:10 44.554N 110.939W 9.4 18 km (11 mi) SE of West Yellowstone, MT 0.4 2010/03/01 12:44:05 44.553N 110.937W 8.9 18 km (11 mi) SE of West Yellowstone, MT 0.9 2010/03/01 12:41:45 44.552N 110.944W 8.0 18 km (11 mi) SE of West Yellowstone, MT 0.6 2010/03/01 12:41:20 44.551N 110.937W 6.5 18 km (11 mi) SE of West Yellowstone, MT 1.5 2010/03/01 12:36:58 44.553N 110.941W 7.8 18 km (11 mi) SE of West Yellowstone, MT 1.0 2010/03/01 12:19:28 44.551N 110.938W 6.8 18 km (11 mi) SE of West Yellowstone, MT 1.0 2010/03/01 09:45:27 44.542N 110.937W 10.0 19 km (12 mi) SE of West Yellowstone, MT 1.0 2010/03/01 09:43:30 44.540N 110.936W 8.6 19 km (12 mi) SE of West Yellowstone, MT 0.9 2010/03/01 09:19:57 44.548N 110.938W 5.6 18 km (11 mi) SE of West Yellowstone, MT more: http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone.html |
Saturday, March 6, 2010
RSOE Emergency and Disaster Information Service | Volcanic Activity - Eyjafjoll volcano - Iceland - March 6, 2010
