Chief of the Hat Noppharat Thara–Mu Ko Phi Phi National Park, Prayoon Phongphan, told The Phuket News today (Oct 21) that officers first noticed the end of the island, two kilometers southwest of Koh Poda (see map below), had “fallen off” during a routine patrol of the park last Friday morning (Oct 16).
“The section broke into two large pieces, both clearly visible above the water. We estimate that the collapsed rock weighs anywhere from 30,000 up to 50,000 tonnes. Luckily no one was injured from the collapse,” he said.
https://www.thephuketnews.com/island-collapse-dumps-30-000-tonnes-of-rock-onto-phi-phi-national-park-reef-77709.php