Tsunamis still on the brain
These two articles are really just scratching the surface. The whole Pacific Ring is unstable, with volcanoes spewing and fault lines colliding. Keep an eye on this area, it will mark the even bigger changes that will be coming.
Earthquake aftershocks top 500:
[World News]: DENVER, Feb. 2 : More than 500 aftershocks have now struck the Indian Ocean area where a giant earthquake hit on Dec. 26.
Data from the U.S. National Earthquake Information Center, which is continually updated, now show 516 signficant aftershocks have hit the area, consisting of the northern tip of the large Indonesian island of Sumatra, and the Nicobar and Andaman islands to the northwest, which are the territory of India.
Four moderate quakes joined the list Wednesday, ranging from magnitude 4.7 to magnitude 5.1. The original event registered magnitude 9.0 on the Richter scale, making it the world's largest earthquake in 40 years, one that generated a series of tsunamis around the Indian Ocean basin, powerful waves that killed about 250,000 people.
SAIPAN, Northern Mariana Islands --
A magnitude 6.3 earthquake jolted the Northern Marianas and Guam on Wednesday, but seismologists assured terrified residents that the quake wouldn't generate a tsunami.
There were no immediate reports of injuries or major damage on the islands.
The Pacific Tsunami Warning Center, which is located in Hawaii, did not issue a tsunami warning. Despite assurances from local and federal agencies, many terrified residents ran out of buildings and looked out to sea for any sign of a tidal wave.
Rudolfo Pua, head of the emergency management office in the Northern Marianas, said the threshold for issuing a tsunami watch or alert is a magnitude 7.0 quake.