Iranian frigate Sabalan Iranian frigate Sabalan Sabalan (in Persian سبلان) is a British-made Vosper Mark V-class (or ) frigate in the Iranian Navy. Commissioned in June 1972 as part of a four-ship order, the "Sabalan" was originally named IIS "Rostam", after Rostam, a legendary hero in the Shahnameh, but was renamed after the Islamic revolution for Sabalan, the Iranian mountain. During the Iran–Iraq War, the warship became infamous for attacks against the crews of unarmed and often neutral tankers and other merchant ships. Before these attacks, "Sabalan"s captain would often board the ships and pretend to carry out a friendly inspection, sometimes even
Mount Balatukan lava flows on the sides of the mountain are determined as Pleistocene. Fumarolic activity is present on the mountain, but its form displays extensive erosion. Balatukan is part of the Central Mindanao Arc of volcanoes. Its northernmost tip called Sipaka Point, which points to the northeast, is a cinder cone on a small peninsula called Mount Sipaka. The Global Volcanism Program lists the last activity of Balatukan as Holocene but "Uncertain". Philippine Institute of Volcanology and Seismology (Phivolcs) lists Balatukan as Inactive, even though the volcano displays fumarolic activity. Mount Balatukan Mount Balatukan is a massive compound stratovolcano in the