“…On the second day, a field of pumice 3 nautical miles (~5.6 km) long, 0.5 nautical miles (~0.9 km) wide, and 90 cm high, covered the eastern sea of Iriomote Island (Tanakadate 1931;Kuro 1962), and the pumice drifted with the Kuroshiro current to the main islands of Japan (Tanakadate 1931;Japan Meteorological Agency 1975).…”