This Week in Volcanoes; Tsunami Occurs at Hunga Tonga Volcano, Intermittent Activity at Kilauea https://www.youtube.com/watch?v=5Z-e0ychwGc ÁöµM¤õ¤s¾Ç¬Énµ¥¥®§¤U¨Ó¤~¦¬¶°¸ê®Æ¤ÀªRVEI ¦ýªì¦ôVEI¤ñ¸û¹³4
... Volcanologists have developed a scale that describes the size of explosive volcanic eruptions based on magnitude and intensity ¡X the volcanic explosivity index, or VEI. Prior eruptions from the undersea volcano near the nation of Tonga were 2. ... But while some experts predict this morning¡¦s eruption could be, at least, a VEI of 4, it¡¦s too soon to tell. ...
... The V.E.I. of the eruption Saturday has not been estimated yet, but before the eruption, the volcano was estimated to be able to produce an eruption with a maximum V.E.I. of 2. ...