名词短语
中文翻译：罕见发生的地震
同义词：
['infrequently occurring earthquake', 'infrequently occurring seismic event']
例句：
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1. The rareoccurrence of this type of earthquake has caused significant concern among scientists.
这种类型的地震罕见发生，引起了科学家的广泛关注。
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2.The seismic activity is infrequent, and the likelihood of a major earthquake occurring is low.
地震活动不频繁，发生大地震的可能性很低。
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3. The researchers conducted an analysis of historical data to determine the frequency of rare occurrences of earthquakes.
研究人员分析了历史数据，以确定罕见地震的发生频率。