Scientists on Wednesday raised the alert level for Anak Krakatoa and Tangkuban Prahu -- which regularly spew gas and rumble -- from "normal" to "warning," the middle of three alert levels.
上周三,科学家们将喀拉喀托火
和唐库班珀拉胡火




“
常”提高到“
告”,三级

中间等级,因为这两座火
近来定期喷出火
灰,并发出隆隆
声音。


重新思考对下次
生了2.5万多次地震。
确定,在我

炸的力量。
的早晨,一位名叫大卫约翰斯顿的年轻


