Increased lava flow during the past day and a new lava dome forming at the peak triggered immediate concerns.

在过去的几天里，岩浆不断地涌出，新的火山堆在一触即发的火山顶形成。

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The hot trail of material descending to the south forms a large distributed deposit, indicating a recent collapse of the lava dome and formation of a large debris avalanche.

从南坡坠落的拖尾熔岩，形成巨大的分散式沉积物，表明熔岩穹丘最近发生了崩塌，形成巨大的岩屑崩落现象。

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There are 59 Cenozoic cones, the volcanic texture of which may be classified into cone, dome, lava lake and maar.

工作区内琼北新生代火山共计5 9个，火山结构类型可分为火山锥、熔岩穹、熔岩湖与低平火山口等。

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Visual observations show the 300m- (1, 000ft) high lava dome within the crater has lifted by about 45m (150ft) and it is continuing to rise.

BBC: Mount St Helens spews out steam and ash on 5 October 2004

Visual observations and photographic analysis show evidence of uplift of the scale of tens of metres of part of the glacier in the crater and of the lava dome.

BBC: NEWS | Americas | Mount St Helens on highest alert

The lava dome is building.

NPR: Excerpt: 'Nobody's Baby'