Instead of belching out lava, they were belching out big, big bubbles of methane. And they were creating these volcanoes, and there were flows, not of lava, but of the mud coming out of the Earth but driven by -- I've never seen this before.
溶岩でなく、ものすごく大きいメタンの泡が 吐き出されていました　それで火山ができ 溶岩でなく、押し出された泥による 割れ目ができていました こんなものは初めて見ました