Most volcanic activity occurs where these plates collide.

大多数火山活动发生在这些板块碰撞的地方。

Volcanic activity over the ages has produced volcanic bombs, pillow lava, " rock dragons" and many other micro-landforms.

在火山活动中形成了火山弹、枕状熔岩、熔岩石龙等微地貌景观。

Volcanic activity on Indonisia's Mount Sinabung continues Thursday with plumes of volcanic ash rising high in the sky.

印度尼西亚的锡纳朋火山爆发，火山活动一直持续至周四，火上上空集聚了浓密的火山灰。

And experts say this is geological evidence of volcanic activity.

专家说这是火山活动的地质证据。

From up above, the full scale of volcanic activity is clear.

从上面可以清楚地看到整个火山活动的规模。

The department also monitors and tracks volcanic activity around the world.

这个部门也在监视和追踪世界各地的火山活动。

All volcanic activity is closely monitored by scientists around the world.

所有的火山活动都在全世界科学家的密切监视之中。

They were formed over the last 5 million years from volcanic activity.

它们是在过去的500万年中由火山活动形成的。

Officials there are blaming this on underwater landslides caused by volcanic activity.

当地官员认为海啸是由火山活动引发的水下滑坡所引起的。

Deep below the surface, atomic compounds ignite during volcanic activity to form CO2.

在这地面以下深处，原子化合物在火山活动中燃烧生成二氧化碳。

Water and heat from volcanic activity are two basic conditions needed for life to form.

水和火山活动散发的热量是生命存在的两个基本前提。

Earlier studies found water in glass beads formed by volcanic activity on the moon.

早期的研究发现，月球上的火山活动形成的玻璃珠中含有水。

The young planet had widespread volcanic activity and an atmosphere that created hostile conditions.

这颗年轻的星球火山活动广布，它的大气层会营造恶劣条件。

Some scientists say volcanic activity in today's Russian area called Siberia warmed Earth temperatures.

一些科学家说，当时如今的俄罗斯西伯利亚地区的火山活动使地球温度变暖。

They also discovered prehistoric ash, which suggests that volcanic activity occurred on a regular basis.

人们还发现了史前火山灰，表明那时的火山活动频繁发生。

There's also a lot of indirect evidence that volcanic activity is ongoing, now, today.

也有很多间接的证据表明火山活动正在进行，就在现在。

North Island has a warm climate and there is quite a lot of volcanic activity.

北部的岛气候很温暖，火山活动频繁。

Tremendous volcanic activity ages ago resurfaced the entire planet, and it still may be active today.

很久以前大量的火山活动重塑了整个星球表面，目前它们可能仍然很活跃。

He said he believes the island's volcanic activity made it too dangerous for daily group visits.

他说，他认为岛上的火山活动太危险了，不适合每天组织游客参观。

The country of more than 270 million people often experiences earthquakes, volcanic activity and ocean waves called tsunamis.

这个拥有2。7亿多人口的国家经常经历地震、火山活动以及被称为海啸的海浪。