With his own interests at heart, your correspondent has been keen to help researchers gather information about such possible earthquakes.

That includes up-to-the-minute info on earthquakes that have just occurred, and a host of information about older quakes, related research, FAQs, engineering topics, educational resources, and more.

Predicting a tsunami from seismic information alone is difficult, scientists say, because the earthquake might have vibrated the seabed up and down, or sideways.