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In late May, 2009, activity decreased and the Alaska Volcano Observatory lowered the alert level. A nearly six-month period of relative quiet at the volcano ended on December 27, 2009, with renewed earthquake swarms. The AVO subsequently raised the alert level, and again warned of the possibility of a more vigorous eruption due to dome collapse ...
The 2009 Tonga undersea volcanic eruption began on 16 March 2009, [5] near the island of Hunga Tonga, approximately 62 kilometres (39 mi) from the Tongan capital of Nukuʻalofa. [6] The volcano is in a highly active volcanic region that represents a portion of the Pacific Ring of Fire .
The volcano erupted June 11–21, 2009, [9] [10] sending out ash plumes. [11] As the volcano is near some of the main air routes between East Asia and North America, there was some disruption to air traffic. [12] Eruption video as seen from the International Space Station, June 12, 2009
On 8 November, the volcano erupted several times, one bearing an ash plume with a height reaching 10 km (6.2 mi). [78] On 9 November, it erupted again, scrambling authorities to evacuate approximately 16,000 people from nearby villages. [79] 2 Mount Marapi [80] Indonesia 2023 23 [81] 2023 eruption of Mount Marapi: 2 Popocatépetl [82] Mexico 2022 1
In the continental U.S., the most recent cataclysmic eruption of a volcano was Mount St. Helens on May 18, 1980. “Vancouver, Vancouver, this is it!” radioed U.S. Geological Survey scientist ...
In a volcanic eruption, lava, volcanic bombs, ash, and various gases are expelled from a volcanic vent and fissure. While many eruptions only pose dangers to the immediately surrounding area, Earth 's largest eruptions can have a major regional or even global impact, with some affecting the climate and contributing to mass extinctions .
A volcano erupted in southwest Iceland last night following a “swarm of seismic activity”. The earthquakes did not stop then however, as 320 further earthquakes have been recorded since the ...
The volcano also erupted in June about a mile south of Kilauea caldera, marking the first eruption in that region of the volcano in about 50 years. The last one took place in December 1974. The ...