Eldgja: Eruption dating

The previous post described what we think we know about the Eldgja eruption. Our knowledge about one of the largest eruptions in Iceland is somewhat limited, surprisingly so given that Iceland was already well populated. One of the few things which seems secure is the date. Eldgja is believed to date to 934 AD, continuing…

The Eldgja Eruption: Iceland’s Baptism by Fire

Iceland is the most volcanic place in the world. Explosive eruptions, from many different volcanoes, are common, unpredictable and, when seen from afar, exciting. But don’t be fooled. These volcanic explosions are small fry, and mostly harmless. Less common but far more devastating are the other type, responsible for 80% of all Icelandic lava and…

Rulers of Earth

    We haven’t seen a large eruption since Tambora, 200 years ago. That is a good thing: the world has had enough troubles in that time, and a major volcanic disaster was really not needed.  There has never been  a major eruption in a highly developed area, and we don’t know how resilient a…

1809: The missing volcano

Large eruptions are well known. Mention Pinatubo, Mount St Helens, Krakatoa, Thera, and everyone knows something about it. The Tambora eruption of 1815 is the largest of this set: it caused the “year without summer”, left tell-tale marks in the ice sheets, and remains a terrifying example of the destructive power of volcanoes. But the…

Millennium Volcanoes

As we labour to rescue what can be saved, we shall continue from where we last were. Here again is that fabulous post by Albert, alas, without the original reader comments: Volcanic eruptions have become major attractions, and even rather minor eruptions can make front page news. In modern days, any volcano deciding to erupt…