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Recent Volcano Observatory Activity Reports
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Kilauea Daily Update issued Nov 20, 2009 09:01 HST Volcano Alert Level WATCH - Aviation Color Code ORANGE
A DI event is in progress. A small hole deep in the Halema`uma`u Overlook vent cavity floor revealed an active lava pond overnight. Sulfur dioxide emission rates from the Halema`uma`u and east rift zone vents remain elevated. Lava flows are active on the pali; lava flows through tubes to the coast and is entering the ocean at two locations west of Kalapana.
The edges of the hole deep within the Halema`uma`u vent cavity continued to break off yesterday evening. Stronger glow was visible after 11 pm at the ...
Long Valley Volcanic Center Daily Update issued Nov 20, 2009 09:26 PST Volcano Alert Level NORMAL - Aviation Color Code GREEN
The real-time computer system located three small earthquakes in the vicinity of Long Valley caldera since the last update at 9:16 AM (PST) on November 19. Magnitude M=0.3 and M=0.1 earthquakes at 9:16 and 11:45 PM on the 19th were located beneath the Mammoth Mountain. A M=0.5 earthquake at 3:59 AM on the 20th was located in the Sierra Nevada south of the caldera (7 miles west of Tom's Place).
Cascade Range Weekly Update issued Nov 20, 2009 09:13 PST Volcano Alert Level NORMAL - Aviation Color Code GREEN
Activity Update: All volcanoes in the Cascade Range are at normal levels of background seismicity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; Mount Hood, Mount Jefferson, Three Sisters, Newberry Volcano, and Crater Lake, in Oregon; and Medicine Lake volcano, Mount Shasta, and Lassen Peak in northern California.
Mount St. Helens has been at Volcano Alert Level NORMAL (Aviation Color Code GREEN) since July 10, 2008.
Recent Observations: Data from monitoring equipment have indicated only background levels of activity at ...
Anatahan Weekly Update issued Nov 20, 2009 10:01 ChST Volcano Alert Level NORMAL - Aviation Color Code GREEN
Report prepared by the U.S. Geological Survey.
No reports of eruptive activity at Anatahan were received the past week, and seismic levels have remained low. Nothing unusual was observed in satellite images throughout the week.
Kilauea Daily Update issued Nov 19, 2009 08:11 HST Volcano Alert Level WATCH - Aviation Color Code ORANGE
A small collapse overnight enlarged a hole deep in the Halema`uma`u Overlook vent cavity floor revealing an active lava pond. Sulfur dioxide emission rates from the Halema`uma`u and east rift zone vents remain elevated. Lava flows were active on the coastal plain. Lava was also flowing through tubes to the coast and entering the ocean at two general locations west of Kalapana.
A small collapse last night around 11 pm enlarged one of the holes deep within the Halema`uma`u vent cavity exposing a roiling, ...
Long Valley Volcanic Center Daily Update issued Nov 19, 2009 09:31 PST Volcano Alert Level NORMAL - Aviation Color Code GREEN
The real-time computer system located three small earthquakes in the vicinity of Long Valley caldera since the last update at 8:01 AM (PST) on November 18. A M=0.4 earthquake at 8:50 AM on the 18th was located beneath the southwest flank of Mammoth Mountain (1 mile west of Mammoth Pass). Three earthquakes were located beneath the Sierra Nevada south of the caldera. The largest was a M=1.6 event at 10:05 AM on the 18th located 4 miles NW of Round Valley.|
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Grand Forks, ND Weather from Weather Underground
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