Recent alert level of Agung volcano(Bali, Indonesia)
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摘要: 印度尼西亚岛链是西南太平洋最为活跃的一条“火链”，生活在该火山区的居民数量也为世界之最，阿贡火山就是这条“火链”中最为活跃的火山之一。阿贡火山的喷发周期约为50年，其上一次喷发是在1963年（距今55年）。从2017年8月开始，阿贡火山的地震明显增多，有复苏和再次喷发的前兆，9月份火山警戒等级已升至为Ⅲ级，10月份开始有喷发柱喷出，11月喷发柱急剧上升至4 km并开始有岩浆活动，警戒等级也升至最高级（Ⅳ级）。本文整理分析了当地对阿贡火山的实时监测数据，展示了阿贡火山从开始活动以来，火山地震、形变、地球化学和遥感影像等的监测情况。Abstract: Indonesia’s island chain is the most active “fire chain” in the Southwest Pacific, and the number of inhabitants in this volcanic area is the highest in the world. The Agung volcano is one of the most active volcanoes in this “fire chain”. The eruption recurrence period of Agung volcano is about 50 years and its last eruption was in 1963 AD （55 years ago）. From August 2017, volcanic earthquakes occurred more frequently which indicates the resumption of eruption. In September, the volcano alert level rose to level Ⅲ. In October, the ash plume began to rise. In November, ash plume rose rapidly to 4 kilometers and the magma began to become active. The alert level rose to the highest level （Level Ⅳ）. This article collects and analyzes the local real-time monitoring data of the Agung volcano, and shows the monitor status, deformation, geochemistry and remote sensing images of volcanic earthquakes since the Agung volcano became activity.
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Key words:
- Agung volcano /
- alert level /
- volcano monitoring /
- indications
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表 1 阿贡火山历史喷发情况
开始时间
（年-月-日）停止时间
（年-月-日）喷发指数
（VEI）证据来源 1963-02-18 1964-01-27 5 史料记载 1843 不确定 5 史料记载 1821 不确定 2 — 1808 不确定 2 史料记载 
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表 2 11月21日至25日的地震次数
日 期 浅成火山地震
（VB）火山地震
（VA）非谐波震颤 谐波震颤 群震 当地构造地震
（TL）远距离构造地震
（TJ）21日 5 8 1 1 2 1 2 22日 11 9 4 0 0 2 5 23日 9 12 0 0 0 5 0 24日 13 5 0 0 0 1 1 25日 44 1 2 0 2 2 0
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