Pompeii Mount Vesuvius Santorini Eruptions Mount Etna Eruptions Case Studies Mount St. Helens Philippines Indonesia Mount Marapi Barren Island Eruptions Mayon Volcano Mount Etna Historical Eruptions Icelandic History Mt. Fuji Eruptions Mayon Volcano Eruptions Phlegräischen Feldern Tokachi Eruption Major Eruptions Mount Etna History Krakatoa Chichonal Eruption of 1982 Historical Events Unzen-Fugen Eruption Chichonal Eruption Mount Fuji Tenerife Eruptions Mt. St. Helens Eruption Nevado del Ruiz Kilauea Eruptions Krakatoa Eruption El Chichón Eruption Kīlauea Eruptions Pompeii and Herculaneum Etna Eruption Lassen Peak Eruption 1980 Eruption Anak Krakatau Nagasaki Icelandic Eruptions 19th Century Events Minoan Civilization Impact on Society Historical Context 1816 Year without Summer
Expanded sensors give early warning that supports a continued green alert.
