The Honshu Tsunami

Via Jeff Masters, an animation of the Japanese tsunami's propagation across the Pacific basin:



The abstract yet brute physicality of the phenomenon makes it all the more horrifying to think about the lives lost to this disaster.

Says Masters, "Today's quake was the strongest in Japanese history, and will likely be the most expensive natural disaster in world history, surpassing the $133+ billion dollar price tag from Hurricane Katrina." He also has a nice map of the force distribution of the tsunami across the Pacific. The irregularities are interesting, as they were for the (obviously far less destructive) tsunami spawned by the Chile earthquake a year ago. I cannot explain them, but I do suspect fractal patterns may be involved.

Pacific Tsunami

There was an 8.8 magnitude earthquake in Chile this morning. That is one of the ten strongest quakes in history, and a hundred times stronger than the 7.0 that leveled Port-au-Prince last month. It struck a relatively unpopulated area, though, and also a far more developed country, so the damage and number of deaths won't be nearly as high as in Haiti. It was expected to produce a tsunami, however, and NOAA's West Coast and Alaska Tsunami Warning Center has a map showing the predicted energy of the tsunami as it crosses the Pacific:



They also have a map showing predicted arrival times of the tsunami. From the time of the earthquake it was expected to take 7-8 hours to reach Central America, 15 hours to reach Hawaii, and ~22 hours to reach Japan. They've issued a tsunami warning for the entire Pacific basin, though the tsunami isn't expected to be catastrophic.

The wave is expected to be about eight feet high when it reaches Hilo.