Mývatn is i of the most pop destinations inward Republic of Iceland for unusual in addition to domestic tourists. In 1975 an eruption started nearby. Nobody expected much action in addition to the fires were relatively contained. But they lasted until 1984.
The action that took house in that place has been termed a rifting episode. It started amongst increasing seismic action inward the Krafla caldera during the mo one-half of 1975, culminating amongst an earthquake swarm, footing fissuring, in addition to a small-scale lava eruption but northward of Leirhnjúkur crater on Dec 20, 1975.
During an active episode, magma ascends below the cardinal volcano in addition to is stored inward shallow magma chambers at a depth of three km. These events were accompanied yesteryear volcanic tremor, earthquakes swarms, vertical footing movements in addition to widening of i purpose or other of the scissure swarm in addition to increased geothermal activity. Some 17 volcanic events of this form occurred from Dec 1975 until September 1984. After 1980 these events were accompanied yesteryear extrusion of lava.
The longer lasting eruptions started equally long fissures but the action concentrated later the outset twenty-four hours on a curt segment where sizeable scoria cones grew. After the September 1984 eruption the full expanse covered yesteryear the lava flows measured 36 foursquare km in addition to the book well-nigh 0.25-0.3 km³.
Many experience that the electrical flow Holuhraun eruption reminds them of the Krafla fires.