Concerns about pollution from disabled tankers anchored in Kachemak Bay is generating pressure for greater tanker safety measures in Cook Inlet after a cracked oil tanker, the Seabulk Pride, was escorted here by a tug, the Pacific Challenger, from the upper inlet. The 601-foot Seabulk Pride was ripped from its loading dock in Nikiski in extreme ice and tide conditions and then rescued from where it had grounded on a beach a half mile north of the dock. The accident occurred just days after the Coast Guard issued “Extreme Ice Rules” for vessels traveling through upper Cook Inlet. Under the rules, if the Seabulk Pride had been pushing ice, it could not have docked. There were 24 people on board when the tanker broke loose, including two marine pilots, and no injuries were reported.