Linked volcano names (below) go to the report for this month within all of the Smithsonian reports for that volcano. Select "Complete Issue" to see all the reports for this month.
Piton de la Fournaise (Reunion Island)
August-October eruption sends lava flows to the sea; pillow lavas
Heard (Indian Ocean)
Thermal alerts indicate crater lake activity starting in June 2003 until June 2004
McDonald Islands (Indian Ocean)
Thermal anomaly detected on 14 November 2004
Soputan (Sulawesi, Indonesia)
Explosive eruption causes ash plume and avalanche on 18 October 2004
Kanlaon (Central Philippines)
Alert level lowered after seismic decrease; January 2005 phreatic ash emission
Mayon (Luzon, Philippines)
Minor activity in June, July, and September 2004; reported ash emission
Taal (Luzon, Philippines)
New episode of seismic unrest began in September 2004
Anatahan (Mariana Islands)
New eruptive episode begins in January 2005; ash plumes and dome growth
Villarrica (Chile)
Active lava lake observed during late 2004
Deception Island (Antarctica)
Annual investigations reveal continuing seismicity and fumaroles
Editors: Rick Wunderman, Edward Venzke, and Gari Mayberry
Volunteer Staff: Robert Andrews, Jacquelyn Gluck, William Henoch, and Catherine Galley