1 Water molecules have a. 2  because the electrons in each covalent bond between the oxygen and each hydrogen are unequally shared-the electrons are closer to the oxygen. 3  This means that each water molecule has a partial negative charge on the oxygen and partial positive charges on the hydrogens.
The 7.9 magnitude quake, which rattled the area Nov. 3, 2002, has been the subject of research and fascination since. Scientific studies of the quake, whose epicenter was about 90 miles south of Fairbanks, spawned new national standards for building bridges and are providing a deeper understanding of how earthquakes affect frozen ground.
This magnitude 7.9 shock was felt by residents over 400,000 square miles of Alaska, as far south as Seattle, Washington, and east to Whitehorse, Yukon Territory, Canada. The largest magnitude earthquake in the central interior of Alaska since October 1947 occurred on October 29, 1968.Rated magnitude 6.5, the shock centered southeast of the village of Rampart, on the Yukon River.ore than 80 percent of the planet's tremors occur in the circum-Pacific belt, and about six percent of the large, shallow earthquakes are in the Alaska area, where as many as 4,000 earthquake at various depths are detected in a year. Early reports of earthquakes in Alaska are fragmentary.