Hawaii's Kilauea volcano could soon send huge rocks and ash shooting out of its summit crater. The last time this happened was almost 100 years ago.
Scientists say the risks of a forceful summit burst will rise in the coming weeks.
Kilauea has destroyed 36 structures — including 26 homes — since it began releasing lava from vents, or openings in the ground. There are now 15 vents spread across the Pahoa area of Hawaii's Big Island.
Tina Neal is a scientist-in-charge at the Hawaiian Volcanoes Observatory. She said the lava lake looks similar to conditions seen before a major summit eruption in 1924. That explosion killed one person and sent rocks, ash and dust into the air for 17 days.
This could happen again, scientists say, once the summit lava lake drops so low that groundwater can flow into the channel that feeds magma to the crater. The magma would heat the water and create steam. This would push out rocks that have collected there.
Don Swanson is another scientist with the Observatory. He said the magma is likely to drop below the water level around the middle of May. Scientists do not know how long it would be after that for an explosion to take place.
We suspect it's a rapid process, Swanson told reporters on a conference call.
No one lives in the immediate area of the summit crater. Hawaii Volcanoes National Park, which includes the crater and surrounding area, announced that it would close Friday ahead of the possible explosive event.
Cindy Wood was visiting the national park from Canada. It seems pretty safe to me right now but they'd know best, she told the Associated Press. We don't know what's going on underground. Life and safety is what's most important.
Earlier this month, officials ordered nearly 2,000 people to leave the neighborhoods around the vents. But some ignored the order and stayed to watch over their property.
Some have refused to follow orders to leave because of fears their property would be robbed.
I'm Caty Weaver.
1.begin doing sth 开始做某事
Begin doing what you want to do now.
2.conference call 电话会议
So, just as in a software project, we have a conference call with all the stakeholders.
3.be likely to do sth 很可能做某事
The blockade is likely to last for some time.
4.right now 现在，立刻，马上
Right now we only have miles with one airline.
5.But some ignored the order and stayed to watch over their property.
watch over 看守，守卫
Please watch over the little birds for me.
Imagine that we have been appointed Guardian of the Gate, and our job is to keep vigilant watch over who passes through.
6. Some have refused to follow orders to leave because of fears their property would be robbed.
because of 因为，由于
His business went under because of competition from the large corporations.
There were fewer temporary engineers to plug in in that city because of low pay.
夏威夷基拉韦厄火山可能不久会就会从火山口迸发出岩石和灰烬 。上次出现这样的景象还是大概100年前 。
基拉韦厄火山已经毁坏了36座建筑物——包括26个居民住所——这都是因为它已经开始从通风口或者地面的裂口处迸发岩浆了 。现在，夏威夷大岛上的帕霍亚地区已经有15个通风口了 。
蒂娜(Tina Neal)是夏威夷火山观测站的主要负责人 。她表示，这里的岩浆湖跟1924年那次大型火山口岩浆迸发的情况十分相似 。1924年的那次岩浆迸发导致1人死亡，并在连续17天的时间里迸发出岩石、灰烬和尘土 。
科学家表示，这种情况可能再次发生，只需要火山口的岩浆湖降低海拔，从而使得地下水流入沟渠，为火山提供岩浆 。岩浆可以使水温升高，产生蒸气，继而使已经堆积的岩石迸发出来 。
唐(Don Swanson)是该观测站的另一名研究人员 。他表示，5月中旬，岩浆很可能降低海拔到水平面以下 。研究人员还不知道这种情况出现后需要多久的时间才会导致火山爆发 。
火山口附近没有人居住 。夏威夷火山国家公园里有火山口及其附近区域，该公园表示，在可能发生火山爆发前，他们会在周五关闭公园 。
辛迪(Cindy Wood)从加拿大来到这里参观国家公园 。她在接受美联社采访时表示，在我看来，现在很安全，不过公园比较了解情况 。普通人是不会知道地下发生的情况的 。生命和安全才是最重要的 。
本月初，工作人员要求近2000人离开通风口附近的人离开该地带 。但一些人无视要求，还是留下守护财产 。
凯蒂(Caty Weaver)为您播报 。