U.S. Geological Survey Web site "1984 Eruption: March 25 - April 15" Summary of the 1984 eruption that threatened Hilo, Hawai`i "1984 Eruption: March 25 - April 15" «1984 Eruption: March 25 - April 15» "1984 Eruption of Mauna Loa" three-week-long outburst most recently Eruption of Mauna Loa 1984 eruption of Hawaii’s Mauna Loa Eruption of Mauna Loa "1984 Eruption: March 25 - April 15" http://hvo.wr.usgs.gov/maunaloa/history/1984.html « Hawaiian Volcano Observatory - L'éruption de 1984 » « Hawaiian Volcano Observatory - L'éruption de 1984 » last major eruption at Mauna Loa last eruption « Hawaiian Volcano Observatory - L'éruption de 1984 » last major eruption at Mauna Loa « Hawaiian Volcano Observatory - L'éruption de 1984 » 1984 eruption of Hawaii’s Mauna Loa Eruption of Mauna Loa USGS Summary of the 1984 eruption that threatened Hilo, Hawai`i last eruption last eruption «1984 Eruption: March 25 - April 15» „1984 Eruption of Mauna Loa Volcano, Hawai`i” three-week-long outburst http://hvo.wr.usgs.gov/maunaloa/history/1984.html most recently http://hvo.wr.usgs.gov/maunaloa/history/1984.html The 1984 eruption