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.
That 7.1 quake shook different parts of Anchorage in very different ways. Author: State seismologist Michael West shows the approximate location of the earthquake that shook the Interior early Wednesday, Oct. 22, 2014. Sunday morning's magnitude-7.1 earthquake shook Anchorage neighborhoods with vastly different force even less than two miles apart, evidence that some pockets of the city are much safer than others.