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.
Body waves inside the earth. Two kinds of waves are generated by earthquakes and travel through solid rock: In P or compressional waves, the vibration of the rock is in the direction of propagation.P waves travel fastest and are the first to arrive from the earthquake.In S or shear waves, rock oscillates perpendicular to the direction of wave propagation.ody waves inside the earth. Two kinds of waves are generated by earthquakes and travel through solid rock: In P or compressional waves, the vibration of the rock is in the direction of propagation.