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.
Dirt rolls down a bluff during an earthquake May 1, 2017, near downtown Whitehorse, Yukon. A series of strong earthquakes centered just across the Canadian border from Southeast Alaska early Monday woke residents from Haines to Petersburg and also gave solid shakes to Whitehorse, Yukon.