to observation from multiple tide gauges, including in Onahama, Owase, and Kushimoto. The tsunami broke icebergs off the Sulzberger Ice Shelf in Antarctica, away. The main iceberg measured (approximately the area of Manhattan Island) and about thick. A total of of ice broke away. As of April 2012, wreckage from the tsunami spread around the world, including a soccer ball which was found in Alaska's Middleton Island and a Japanese motorcycle found in British Columbia, Canada. Norway On the day of the earthquake, several fjords in Norway suddenly started to boil and rise, sending freak waves rolling onto nearby shores and mystifying residents. After two years of research, scientists concluded that the massive earthquake also triggered these surprise seiche waves thousands of miles away. Casualties Japan Key statistics The official figures released in 2021 reported and . The leading causes of death were drowning (90.64% or 14,308 bodies), burning (0.9% or 145 bodies) and others (4.2% or 667 bodies, mostly crushed by heavy objects). Injuries related to nuclear exposure or the discharge of radioactive water in Fukushima are difficult to trace as 60% of the 20,000 workers on-site declined to participate in state-sponsored free health checks. Elderly aged over 60 account for 65.8% of all deaths, as shown on the table to the right. In particular, in the Okawa Elementary School tragedy, which 84 drowned, it was discovered that in the wake of the tsunami, young housewives who wanted to pick up their children to high ground, found their voices drowned out by retired, elderly, male villagers, who prefer to stay put at the school, which was a sea-level evacuation site meant for earthquakes, not for tsunami. Richard Lloyd Parry concluded the tragedy to be "the ancient dialogue [...] between the entreating voices of women, and the oblivious, overbearing dismissiveness of old men". For the purpose of relief fund, an "earthquake-related death" was defined to include "Physical and mental fatigue caused by life in temporary shelter", "Physical and mental fatigue caused by evacuation", "Delayed treatment due to an inoperative hospital", "Physical and mental fatigue caused by stress from the earthquake and tsunami". A few cases of suicide are also included. Most of these deaths occurred during the first six months after the earthquake and the number dropped thereafter, but as time has passed, the number has continued to increase. Most of these deaths occurred in Fukushima prefecture, where the prefecture