| start date | end date | title | description | icon | date limit | importance |
link | modal |
|---|
| 1772-00-00 | | Cerberus: 1772 | From Miller and others (1998): "Records of volcanism on Semisopochnoi Island are scant; historical eruptions could have involved the small Lakeshore Cone and Sugarloaf cone in addition to Mount Cerberus. However, since at least one of the early reports specified that the activity noted was in the center of the island, and Mount Cerberus is the least eroded of the recent cones, it is believed to have been the source of most recorded events (Coats, 1950; 1959)."
From Grewingk (1850, translated ... More information | asterisk_yellow.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Semisopochnoi&eruptionid=11&page=basic | |
| 1790-00-00 | | Cerberus: 1790 | From Miller and others (1998): "Records of volcanism on Semisopochnoi Island are scant; historical eruptions could have involved the small Lakeshore Cone and Sugarloaf cone in addition to Mount Cerberus. However, since at least one of the early reports specified that the activity noted was in the center of the island, and Mount Cerberus is the least eroded of the recent cones, it is believed to have been the source of most recorded events (Coats, 1950; 1959).
From Grewingk (1850, translated ... More information | asterisk_yellow.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Semisopochnoi&eruptionid=12&page=basic | |
| 1792-06-01 | | Cerberus: 1792 | From Miller and others (1998): "Records of volcanism on Semisopochnoi Island are scant; historical eruptions could have involved the small Lakeshore Cone and Sugarloaf cone in addition to Mount Cerberus. However, since at least one of the early reports specified that the activity noted was in the center of the island, and Mount Cerberus is the least eroded of the recent cones, it is believed to have been the source of most recorded events (Coats, 1950; 1959)."
From Grewingk (1850, translated ... More information | asterisk_yellow.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Semisopochnoi&eruptionid=13&page=basic | |
| 1830-00-00 | | Cerberus: 1830 | From Miller and others (1998): "Records of volcanism on Semisopochnoi Island are scant; historical eruptions could have involved the small Lakeshore Cone and Sugarloaf cone in addition to Mount Cerberus. However, since at least one of the early reports specified that the activity noted was in the center of the island, and Mount Cerberus is the least eroded of the recent cones, it is believed to have been the source of most recorded events (Coats, 1950; 1959)."
Grewingk (1850, translated 2003 ... More information | asterisk_yellow.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Semisopochnoi&eruptionid=14&page=basic | |
| 1873-00-00 | | Cerberus: 1873 | From Miller and others (1998): "Records of volcanism on Semisopochnoi Island are scant; historical eruptions could have involved the small Lakeshore Cone and Sugarloaf cone in addition to Mount Cerberus. However, since at least one of the early reports specified that the activity noted was in the center of the island, and Mount Cerberus is the least eroded of the recent cones, it is believed to have been the source of most recorded events (Coats, 1950; 1959)."
From Becker (1898): "1873. ... More information | exclamation.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Semisopochnoi&eruptionid=15&page=basic | |
| 1987-04-13 | 1987-5-26 | Sugarloaf Peak: 1987 | Miller and others (1998): "The latest reported activity occurred on April 13, 1987 when a plume extending 90 km ENE from Semisopochnoi Island was observed on satellite imagery; the plume extended only 15 km ENE several hours later. On April 24, 1987, a commercial pilot flying about 50 km SE of the island observed that one of the snow-covered peaks, possibly Sugarloaf, was blackened (Smithsonian Institution, 1987)."
From Reeder (1990): "Steve Shivers of the U.S. Geological Survey Anchorage ... More information | exclamation.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Semisopochnoi&eruptionid=16&page=basic | |
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