why did the ecuaodr earthquake happen
8.8M. N.B: The magnitude for this earthquake has been recalculated since the following articles were written. Magnitude 8.8 is a better determination of the size of this earthquake. A catastrophic magnitude 8.2 earthquake off the coast of Ecuador and Colombia generated a strong tsunami that killed 500 to 1500 there.It was observed all along the coast of Central America and as far north as San Francisco and west to Japan.....The wave arrived in Hilo at about 12.5 hours after the earthquake..8M. N.B: The magnitude for this earthquake has been recalculated since the following articles were written. Magnitude 8.8 is a better determination of the size of this earthquake. A catastrophic magnitude 8.2 earthquake off the coast of Ecuador and Colombia generated a strong tsunami that killed 500 to 1500 there.