Damage, conditions of East Java Tsunami of 1994 analyzed
Damage, conditions of East Java Tsunami of 1994 analyzed
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DOI：
10.1029/95eo00150
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发表时间：
1995-06
期刊：
影响因子：
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通讯作者：
C. Synolakis;F. Imamura;Y. Tsuji;H. Matsutomi;S. Tinti;Benjamin I. Cook;Y. P. Chandra;M. Usman
中科院分区：
文献类型：
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作者：
C. Synolakis;F. Imamura;Y. Tsuji;H. Matsutomi;S. Tinti;Benjamin I. Cook;Y. P. Chandra;M. Usman
1994年6月3日，印度洋爪哇海沟伦敦东区附近15 km深度发生了一次7.2级地震。地震引发的大海啸猛烈袭击了爪哇东南部，并延伸到巴厘岛西南部（图1和图2）。大约200人死亡，400人受伤，1000所房屋被毁。爬升高度（图2）范围从巴厘岛西部的0-5米到爪哇东南部的1-14米。这次不寻常的海啸发生在距离重灾区约250公里的地方。令人惊讶的是，强烈的地震引起的地面震动并不是前兆，所以当地居民对即将发生的灾难没有任何警告。地震的长周期特征与相对较弱的高频震级Mb=5.5不相称，地震矩释放率单调增长，至少可达270 s。这种模式类似于1992年9月2日的尼加拉瓜地震，当时没有发生强烈的地面震动。大部分破坏集中在位于口袋海滩的村庄，不像以前在尼加拉瓜西部，印度尼西亚弗洛雷斯的海啸破坏[Yeh等人，1993]和Okushiri，日本。
On June 3, 1994, an Ms = 7.2 earthquake occured at a depth of 15 km near the east end of the Java trench in the Indian Ocean. The earthquake generated a large tsunami that violently struck southeast Java and extended to southwest Bali (Figures 1 and 2). Approximately 200 people were killed, 400 were injured, and 1000 houses were destroyed. Runup heights (Figure 2) ranged from 0–5 m in west Bali to 1–14 m in southeast Java. This unusual tsunami was generated about 250 km from the hardest hit area. Surprisingly, strong earthquake-induced ground shaking was not a precursor so local residents had no warning of the impending catastrophe. The long-period characteristics of the earthquake were incommensurate with the relatively weak high-frequency magnitude Mb=5.5, and the rate of seismic moment release grew monotonically up to at least 270s. The pattern resembled that of the Nicaragua earthquake of September 2, 1992, in which strong ground shaking did not occur. Most of the damage was concentrated in villages located in pocket beaches, unlike previous tsunami damage in west Nicaragua, Flores, Indonesia [Yeh et al., 1993], and Okushiri, Japan.