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,科学家们将喀拉喀托火
库班珀拉胡火
的
度由“正常”提高到“
告”,
的中间等
,因为这两座火
近来定期喷出火
灰,并发出隆隆的声音。