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The following is a list of earthquakes near and in the Vanuatu archipelago. ==2009== Several moderate to major earthquakes affected the vicinity of Vanuatu and also of Santa Cruz Islands between 7 and 8 October 2009. The first earthquake struck at 2203 UTC on 7 October 2009 and measured 7.6 Mw. A tsunami warning was issued for 11 countries throughout the region although this was canceled within two hours after only a minor tsunami formed.〔(【引用サイトリンク】Tsunami Advisory ) 〕〔(【引用サイトリンク】New Quakes, Small Tsunami Panic Pacific Islanders )〕 The Vanuatu earthquakes occurred on (or near) the boundary of the Australia Plate and the Pacific Plate, and occurred mostly at a depth of . This boundary region is among the most seismically active areas in the world, and Vanuatu is in the region of the Pacific called the "Ring of Fire" that is known for producing dramatic earthquakes, volcanoes, tsunamis, and other geologic phenomena.〔 (【引用サイトリンク】title=Earthquakes Near Vanuatu : Image of the Day ) 〕 On 7 October 2009 22:03:15 a large 7.6 earthquake occurred (see table below). The initial earthquake was re-designated as a foreshock because it was followed by a shock of 7.8 magnitude 15 minutes later in the same area. Moderate aftershocks occurred and those with magnitude 6.0 or higher are listed below (there were a dozen ranging from 5.0 to 5.8 within the 12 hours following the initial event). Shocks with magnitude 7.0 or higher are highlighted in light blue and the main shock of 7.8 is highlighted in dark blue. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of earthquakes in Vanuatu」の詳細全文を読む スポンサード リンク
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