Laconia is located close to the center of New Hampshire. Laconia is part of Belknap County. Laconia has 20.06 square miles of land area and 6.52 square miles of water area. As of 2010-2014, the total Laconia population is 16,007, which has shrunk 2.46% since 2000. The population growth rate is much lower than the state average rate of 6.90% and is much lower than the national average rate of 11.61%.
Earthquakes generate three types of seismic waves: P (primary) waves, S (secondary) waves and surface waves, which arrive at seismic recording stations one after another. Both P and S waves penetrate the interior of the Earth while surface waves do not. Due to this, P and S waves are known as body waves.
Have up and down rolling motion, and side to side vibrational motion. During an earthquake, the Earth's surface 'rolls' like waves on the open ocean and moves from side to side. Body Waves - Radiate from the focus and travel throughout the earth's interior. There are two types of body waves: P-waves and S-waves. P-wave (primary wave) - A compressional wave that causes alternate compression-expansion of the rock. Move through both solids and liquids (Fig 8.8 A).