Rumor has it we are overdue for a major earthquake in the Pacific Northwest. Bill Steele with the Pacific Northwest Seismograph Network says he thinks California's San Andres fault could go first. Steele says research shows that we are on a 500 year cycle with major earthquakes on the Cascadia Subduction Zone.
The last one was in 1700 and it sent a tsunami to Japan. He says they continually monitor seismic activity, but don't know if the next big quake is coming tomorrow or centuries from now.