調査した海域 (IMAGE) Kumamoto University Caption 日本近海には多くの海底火山が存在する。今回調査したのは、東京から約420km南にある赤の点線で囲まれた海域。 Credit Kumamoto University Usage Restrictions This image may only be used in conjunction with the accompanying release or stories written about the work described in the release with reference to the original work. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.