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.
Southcentral Alaska was rocked by a strong and prolonged magnitude-7.1 earthquake early Sunday morning, destroying four homes on the Kenai Peninsula and rattling nerves throughout the region. The quake struck at 1:30 a.m., according to the U.S. Geological Survey. The Alaska Earthquake Center said it hit on the west side of Cook Inlet, about 65 miles west of Homer and about 160 miles southwest of Anchorage, at a depth of 76 miles. It was felt from Juneau to Fairbanks.