A fact from 1888 Ritter Island eruption and tsunami appeared on Wikipedia's Main Page in the Did you know column on 17 February 2021 (check views). The text of the entry was as follows:
Did you know... that the 1888 eruption of Ritter Island reduced the 780-metre tall (2,560 ft) volcano to a height of just 140 metres (460 ft)?
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The size of the sector collapse that caused the tsunami has been estimated as about double that of the one that triggered the lateral blast at Mount St Helens in 1980. However, more recent studies (Karstens et al. 2019), based on 3D seismic reflection data have shown that a large part of the mapped deposit came from remobilised seafloor sediment becoming entrained in the landslide as it moved. That paper states "By distinguishing between gradual deformation and catastrophic failure, the volume of the rapidly moving phase of the Ritter collapse (2.4 km3) may have been even smaller than the 2.7 km3 calculated for the 1980 Mount St. Helens sector collapse using a similar approach (Moore et al., 1981), which questions whether the 1888 Ritter sector collapse should be classified as the largest historic sector collapse." Mikenorton (talk) 21:31, 24 September 2021 (UTC)[reply]
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