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.
The level of shaking, in turn, is controlled by the proximity of the earthquake source to the affected region and the types of rocks that seismic waves pass through en route (particularly those at or near the ground surface). Generally, the bigger and closer the earthquake, the stronger the shaking.: The P wave, or compressional wave (think sound wave), is a seismic body wave that shakes the ground back and forth in the same direction that the wave is moving. P waves travel fastest and are generally felt first. They usually cause very little damage.