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Zufallsfotos

Erebus Vulkan Ausbrüche

Schichtvulkan 3794 m / 12,447 ft
Antarctica, -77.53°S / 167.17°E
Eruption-Liste: 500 AD ± 100 (south flank of Kaulet Hattab), around 200 AD (east flank of Jabal Zebib)


2006 eruptions
Activity increased during the first half of 2006 and decreased after June again. During this period, there were frequent large and very large eruptions from the Lava Lake, Ash Vent, or Werner's Vent inside the inner crater.

2005 eruptions
Several "small- to medium-sized" (strombolian) eruptions were reported during 12-18 October, with a "very large" eruption on 14 October.

2001 eruptions
In early 2001, lava flows in the inner crater and ash eruptions were seen at Erebus volcano.
On 23 November 2001, MEVO reported that Mount Erebus produced frequent Strombolian eruptions (~1-10 per day) and the lava lake was 15 m in diameter. Small ash explosions also took place from a vent adjacent to the lava lake.

1980-95 activity
Activity was relatively uniform between 1980-1995, with the exception of 2 significant events: In 1984 there was a 3-4 month period of larger and more frequent Strombolian eruptions which ejected bombs >2 km from the summit crater.
On 19 October 1993, 2 moderate phreatic eruptions blasted a new crater ~80 m in diameter on the Main Crater floor and ejected debris over the northern Main Crater rim.
Significant collapse of the Inner Crater was occurring in late 1995, although the lava lake remained fairly constant in size at ~20 m diameter and generally in the same location.
(from Smithsonian / GVP monthly reports

1984-85 increased activity
An increase of the activity began on 13 September 1984 and peaked during the month and in early October, and remained at significantly higher levels than since 1972 until January 1985.
Previously, small Strombolian eruptions, which occurred 2-6 times/day, had occasionally ejected bombs from the 220-m-deep inner crater floor onto the main crater rim.
During the increased activity, bombs averaging 2 m long and reaching more than 10 m in length landed in all directions around the crater rim, and reached up to 1.2 km horizontal distance from the inner crater. The eruptions were witnessed from 60 km distance and the explosions could be heard from 2 km.
(adapted from Smithsonian / GVP monthly reports)

1979 plane crash
On 28 November 1979, an Air New Zealand sightseeing flight crashed into Mt Erebus, killing all 237 passengers and 20 crew on board. The accident is commonly known as the Mount Erebus disaster.

1972-80 activity
In 1976, it was noted that the lava lake had slowly increased since its discovery 4 years ago in 1972 and was about 100 m wide.
Throughout the 1970's, activity remained relatively constant, with a slight tendency of gradual increase in level. Strombolian eruptions were occurring from time to time, 2-10 per day typically, sometimes throwing bombs up to a few hundred meters above the outer rim. Occasionally, such bombs were landing outside the crater.
In 1978, the lake was 130 m wide and oval-shaped, with 2 zones of active upwelling of lava. Doming of the lava lake surface was occasionally observed, including one large bubble, that grew to ~80 m height before bursting.
In 1978, the lava lake activity consisted of 1) lava upwelling in nearly circular areas, 2) small bubble-like degassing eruptions, and 3) downwelling of the consolidated crust along planar troughs or 'subduction zones.'

Scientists tried to descend into the inner crater in order to collect fresh samples. On 23 December 1978, New Zealand volcanologist W. F. Giggenbach had almost reached the inner crater floor, when an explosion occurred. He was hit by a small bomb above his knee, but survived without injury; only the woolen pants were burnt.

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