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全球地震及火山爆發統計圖更新 2011.6.30
World earthquakes and volcanic eruptions statistical graphs updated June 30, 2011
全球地震及火山爆發統計圖已更新至2011年6月30日。
Statistical graphs of world earthquakes over magnitude 7 and world volcanic eruptions are updated as of June 30, 2011.
每年7級以上地震超過17次已有5年。
A total of five years have seen above-magnitude-7 earthquake count over 17.
每年火山爆發超過70次已有5年。
A total of five years have seen annual eruption count over 70.
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