SAN FRANCISCO — It was one of the largest earthquakes ever recorded, a magnitude 8.8 monster off the eastern coast of Russia.Despite its remote location, the size of the quake immediately brought potential danger of tsunami to a significant swath of the globe, including Japan, Canada and the United States. Tsunami alerts immediately went out, covering millions of people, including the entire U.S. West Coast.But for all its strength, the quake ended up not being a catastrophe. Dangerous waves that rose more than 10 feet never materialized outside of Russia, and even there, officials had no reports of deaths, and...