Actually three random factoids about the Japanese earthquake:
1.
The Antarctic ice stream sped up
Thousands of miles and a world away from Japan, the seismic waves of the Tohoku earthquake appeared to temporarily
speed up the flow of the Whillans glacier. Glaciers are essentially rivers of ice that slowly flow, in the case of Antarctica, from the interior of the continent out to sea.
The faster pace of the Whillans glacier was detected by GPS stations located on the ice. Normally, the glacier slides only about 3 feet (1 meter) per day, but in a strong slip event, such as the one triggered by the earthquake, it can rapidly move about 1.5 feet (0.5 m).
2.
Antarctic iceberg broken
The massive March 11 Japan earthquake and its ensuing tsunami were so powerful that they
broke off huge icebergs thousands of miles away in Antarctica, according to a new study.
The calving of icebergs (where a huge chunk of ice breaks off from a glacier or ice shelf) from the Sulzberger Ice Shelf in Antarctica was linked to the tsunami, which originated with the magnitude 9.0 earthquake off the coast of the Japanese island of Honshu, by satellite observations of the Antarctic coast immediately after the earthquake.
Icebergs have been reported to calve following earthquakes before, including after the magnitude 6.3 earthquake that struck Christchurch, New Zealand, on Feb 22. But the new finding marks the first direct observation of such a connection between tsunamis and iceberg calving.
3.
Shortened the day by 1.8 milliseconds