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More information on Kilauea...

USGS Volcano Status Messages:
Kilauea Daily Update issued Nov 20, 2009 09:01 HST Volcano Alert Level WATCH - Aviation Color Code ORANGE
Details...

USGS Kilauea Webcam

Tropical Cyclone

Kilauea Volcano, Halema'uma'u Crater


Map by J. Johnson, 2000
Simplified map of Kilauea Volcano showing the summit caldera, southwest and east rift zones, Pu`u `O`o, roads, and several communities located on the volcano's flanks. From USGS

Halema`uma`u gas plume becomes ash-laden.
Halema`uma`u gas plume becomes ash-laden. March 24, 2008 Photo by M. Sako (Photo from USGS)

Infrared Satellite image - click for loop
Infrared Satellite image - click for loop


Kilauea is one of the world's most active volcanoes, but it is of the sort that tends to ooze lava more often than it explodes. Until March 19, 2008, the last explosive eruption from the Halema'uma'u Crater, the summit crater, occurred in 1924. But starting on March 19, a small explosion from the crater rained rock and ash over the summit. The explosion heralded further activity at the summit, including a two to four fold increase in the amount of sulfur dioxide seeping from the volcano. The Hawaiian Volcano Observatory warned on March 28 that sulfur dioxide concentrations in the air downwind from the volcano were likely to be hazardous, particularly to children or those with asthma or other breathing difficulties. Even before the March 19 explosion, elevated sulfur dioxide levels prompted the National Park Service to close part of Crater Rim Drive starting in mid-February.

Current Sulfur Dioxide (SO2) Conditions from National Park Service


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Recent Volcano Observatory Activity Reports from USGS


Kilauea Daily Update issued Nov 20, 2009 09:01 HST Volcano Alert Level WATCH - Aviation Color Code ORANGE
Activity Summary for past 24 hours: 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. Past 24 hours at Kilauea summit: 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 ... Details...

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). Details...

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 ... Details...

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. Details...

Kilauea Daily Update issued Nov 19, 2009 08:11 HST Volcano Alert Level WATCH - Aviation Color Code ORANGE
Activity Summary for past 24 hours: 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. Past 24 hours at Kilauea summit: A small collapse last night around 11 pm enlarged one of the holes deep within the Halema`uma`u vent cavity exposing a roiling, ... Details...

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. Details...