The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
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Ebeko (Paramushir Island): (1 Mar) After a period of approx 4 weeks with only intermittent and very small emissions, a stronger phase of ash eruptions occurred again on Monday. Dense ash plumes rising several hundred meters could be observed from the small town of Severo-Kurilsk. KVERT maintains Aviation Color Code Yellow for the volcano. The nature of the activity is unknown without a detailed analysis of the ash particles. In most cases, this type of activity is phreatic, i.e. only fragmented older rocks are being erupted and the explosions are entirely caused by shallow steam explosions, when ground water is heated by an underlying magma body, which itself is not (yet) reaching the surface.
Piton de la Fournaise (La Réunion): (1 Mar) The first eruption of the volcano in 2017 ended last Monday. After having been stable for several weeks, tremor started to drop and both lava emission ceased quickly in the morning of 27 Feb at 10:00 local time. The eruption was declared over when also pulsating gas emissions stopped a few hours later. However, volcanologists do not exclude the possibility that a new eruption could start soon again, because inflation of the volcanic edifice continues to be detected along with elevated diffuse CO2 emissions. Both parameters suggest that magma supply continues from a deep source and could lead to new eruptions within short time (days to few weeks). A similar scenario occurred during the eruption in Aug-Oct 2015 when activity ceased and restarted two times.
Intraplate volcanism: A third tectonic setting where volcanism occurs is believed to be the result of mantle plumes and not directly related to plate boundaries. So called hot spot volcanoes fall into this category.
Top 20 quakes in 2016: Several magnitude 7 quakes occurred in 2016 (but none above M8): Papua New Guinea, NZ, Ecuador, Solomon Islands, Sumatra, Chile, Alaska and others - nearly all major earthquakes were located near active subduction zones.
See the top 20 list of largest quakes in 2016 with this map.
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