Volcanos

[Buster's Uncle]

So Gilligan's Island appears to be both an active volcano and a coral atoll.

I think that's actually plausible if the volcano had only reactivated very recently.

[Lord Avalon]

Revised start time in the Wed early morning update: "Episode 39 of the ongoing Halemaʻumaʻu eruption ended abruptly at 2:13 a.m. HST on December 24, 2025 after 5.9 hours of continuous fountaining (the start time was revised from 8:10 p.m. to 8:20 p.m. HST on December 23 based on tilt and tremor data).

The north vent stopped erupting at approximately 2:00 a.m. HST. The south vent stopped erupting at approximately 2:13 a.m. HST, marking the end of the episode. Lava fountains from the south vent reached up to 1400 ft (420 m) while north vent fountains were just under 1000 feet (280 meters) around 9:30 p.m. HST on December 23. Episode 39 fountains lasted for 5.9 hours and produced an estimated 13 million cubic yards (10 million cubic meters) of lava. The combined average eruption rate was over 250 cubic yards per second (190 cubic meters per second) from the dual fountains. Lava flows from the fountains covered about 60-70% of the floor of Halemaʻumaʻu crater."

[Lord Avalon]

Another Wed update says that the fountains reached ~1400 feet (425 m).

Also "The rapid rebound of inflationary tilt and presence of low level volcanic tremor indicate another fountain episode is likely to occur. There is insufficient data for modeling, but the next episode is likely about 2 weeks away."