The Quake Alarm provides instant warning of seismic activity by detecting the "P" wave (compression wave) of an earthquake, which travels faster than more destructive "S" wave (shear wave).
How does it work?
The Quake Alarm provides early warning of seismic activity by detecting the "P" wave (compression wave) of an earthquake, which travels faster than and arrives prior to the more destructive "S" wave (shear wave) and surface waves.
When an earthquake occurs, it releases energy in the form of seismic waves that radiate from the earthquake source in all directions. The different types of energy waves shake the ground in different ways and also travel through the earth at different velocities.
The fastest wave, and therefore the first arriving at a given location, which is called “P wave”. The P wave, or compressional wave, alternately compresses and expands material in the same direction of traveling. The S wave is slower than the P wave, shaking the ground up and down, back and forth perpendicular to the direction of traveling. Surface waves follow the P and S waves. The Quake Alarm™ is sensitive enough to detect the P waves and sound the alarm before the destructive S waves.
1.saving valuable seconds by removing the guesswork in earthquake detection;
2.detecting the earthquake which occurs hundreds of miles away;
3.detecting moderate to minor earthquakes for many miles around your local area;
4.waking you up and alerting you the moment the quake starts so that you can immediately take cover or tend to other family members;
The human mind relies upon the sensations from the inner ear and the sight to determine the motion of body, that is undergoing at the time when an earthquake starts.
Disorientation, known as vertigo, can confuse people, they instinctively freeze for many seconds during the start of an earthquake. Sound also plays a part in the earthquake detection and issometimes misleading. The sound of a slamming garage door or the low rumble of a large truck could startlemany people to falsely think that it’s an earthquake. This Quake Alarm can eliminate confusion, save valuable seconds.