鳥島近海で何が起きているのかを知りたい：2023年10月10日（火）

昨日9日午前6時40分に気象庁は，伊豆諸島と小笠原諸島に津波注意報を発表した。実は，その津波注意法が発表される前に，既に八丈島に津波が到達していたという。

　この津波の原因は，午前5時25分頃に鳥島（東京より南東600km）近海で起きた地震らしきものと言われているが，観測地点のデータが乏しく，地震が起きていたかどうかも不明であるという。

　私は，今回，津波を受けた日本各地の沿岸地域の放射線量測定を定期的に行うべきとみている。少なくとも，津波の原因が不明であるのであれば，予定調和的な推測ではなく，可能な範囲でデータ収集・蓄積は怠るべきではないと考える。

Want to know what's happening near Torishima：October 10th(Tuesday)

On the morning of the 9th, at 6:40 AM, the Japan Meteorological Agency issued a tsunami advisory for the Izu Islands and the Ogasawara Islands. In fact, it has been reported that a tsunami had already reached Hachijo Island before the tsunami advisory was issued.

The cause of this tsunami is said to be a seismic event that occurred near Torishima (approximately 600 kilometers southeast of Tokyo) at around 5:25 AM. However, there is a lack of data from observation points, and it is still unclear whether an earthquake actually occurred.

I believe that, in this case, regular radiation measurements should be conducted in coastal areas across Japan affected by the tsunami. At the very least, if the cause of the tsunami remains unknown, we should not neglect data collection and accumulation to the best of our abilities, rather than relying on speculative assumptions.