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.
âLast nightâs earthquake is significant because it was close enough to Alaskaâs population centers.â This news comes despite the fact that Alaska is used to experiencing earthquakes in other areas, such as a massive 7.9 recorded during 2014 in the more remote Aleutian Islands.