The Alert Level at Raoul Island was lowered to 0 (on a scale of 0-5) on 18 September due to a general decline in activity. Since April 2006, no significant earthquake activity had occurred within ~30 km of the island, the water in Green Lake dropped to the pre-eruption level, and on-going hydrothermal activity returned to normal.
As of 13 April, seismicity at Raoul Island had returned to normal and Green Lake's water level was dropping. Raoul Island remained at Alert Level 2 (minor eruptive activity).
Wed, 26 Apr 2006, 06:00
Hydrothermal activity at Raoul Island's Green Lake crater had declined significantly as of 28 April and the lake water level continued to fall. The Alert Level at Raoul Island was reduced from 2 to 1 (some signs of volcano unrest), on a scale of 0-5.
Read allWed, 19 Apr 2006, 06:00
As of 21 April, hydrothermal activity at Raoul Island's Green Lake crater declined significantly and the lake level continued to fall. Recent earthquakes at or near the island were smaller and occurred less often than during the previous 3 weeks. Raoul Island remained at Alert Level 2 (minor eruptive activity).
Read allThu, 13 Apr 2006, 08:44
Seismicity continued to decline at Raoul Island through 7 April. In addition, Green Lake's water level began to recede, ending the water-level increase that had occurred in response to the 17 March eruption.
Wed, 12 Apr 2006, 06:00
As of 13 April, seismicity at Raoul Island had returned to normal and Green Lake's water level was dropping. Raoul Island remained at Alert Level 2 (minor eruptive activity).
Read allWed, 5 Apr 2006, 06:00
Seismicity continued to decline at Raoul Island through 7 April. In addition, Green Lake's water level began to recede, ending the water-level increase that had occurred in response to the 17 March eruption. Raoul Island remained at Alert Level 2 (minor eruptive activity).
Read allThu, 30 Mar 2006, 16:19
After the 17 March eruption at Green Lake on Raoul Island, no new eruptions occurred and seismicity declined through 24 March. New Zealand scientists found that many new craters had formed in and around Green Lake and that pre-existing 1964 craters had eactivated. The main steam columns were derived from Crater I, Marker Bay, and Crater XI. The eruption blew over mature trees as far as 200 m from the eruption site and deposited dark gray hydrothermal mud and ballistic blocks.
Read allWed, 29 Mar 2006, 06:00
As of 31 March, no new eruptive activity had occurred at Raoul Island after the 17 March eruption. Seismicity continued to decline and Green Lake's water level continued to rise in response to the eruption. Raoul Island remained at Alert Level 2 (minor eruptive activity).
Read allWed, 22 Mar 2006, 06:00
After a 17 March eruption at Green Lake on Raoul Island, no new eruptions occurred and seismicity declined through 24 March. GNS observed the volcano via photographs and video on the afternoon of the 17th, and noted that many new craters had formed in and around Green Lake and that pre-existing 1964 craters had reactivated. The main steam columns were derived from Crater I, Marker Bay, and Crater XI.
Read allFri, 17 Mar 2006, 09:29
The Green Lake crater of Raoul volcano on Raoul Island (one of the remote Kermadecs Islands group in the South Pacific, located 625 miles northeast of New Zealand's city of Auckland) erupted early Friday, 17 March 2005. The eruption lasted about 30 minutes and was probably a series of phreatic explosions, throwing debris, ash and vapour out of the lake-filled crater.
Read allWed, 15 Mar 2006, 06:00
An eruption began in the Green Lake area of Raoul Island volcano on 17 March around 0821. Based on interpretations of seismic data, the eruption appeared to have lasted for 30 minutes, with the most intense activity lasting 5-10 minutes. The eruption consisted of the ejection of mud and rocks, and a steam plume.
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