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.