Fig 1 Caldera_Mt_Tambora_Sumbawa_Indonesia

Tambora: 200 year Anniversary of the 1815 eruption

April 2015 will mark the 200 year anniversary of the largest recorded eruption in historic times. Yes, Tambora. Tambora’s sulphate dust clouds are now attributed with disrupting major weather systems for more than three years, causing net global cooling, global crop failures in 1816, famine and disease, including a cholera pandemic. Yet, despite being one…

composite

Ruminerian X – Rio Grande Rift

From Wikipedia: “A lineament is a linear feature in a landscape which is an expression of an underlying geological structure such as a fault. Typically a lineament will comprise a fault-aligned valley, a series of fault or fold-aligned hills, a straight coastline or indeed a combination of these features. Fracture zones, shear zones and igneous…

10960392_783454021708392_3533294199371478880_o

Oh, by the way…

The Facebook Group for Volcanocafé has recently passed a milestone reaching 1000 members with Sean Whitley becoming #1000, so I have been asked to do a short post with some information about who we are and how we differ from the main VolcanoCafé site.   The group was officially announced by Carl on the 28th of September 2013,…

Rataka_cliff

The great eruption of Krakatau continued

Part 2 of a guest post by Albert: The big explosions Up to Aug 25, the eruption of Krakatau was not a major one. The largest event had been the initial explosion, May 20th 1883. The long continuation, and the presence of multiple eruption sites, was similar to the 1680 event. Magma had traveled from…