Tsunami-Struck Indonesia! Why Warning System Collapsed?
The tsunamis are an awful natural phenomenon that is devastating. Two damaging tsunamis occur worldwide on average every year. Almost every 15 years, there is a major devastating oceans-wide tsunami. Many nations have created a tsunami warning system separately or together to avoid unfortunate deaths. Last year, Indonesia suffered a massive earthquake and tsunami, and their alert system got failed, unfortunately. The reasons for tsunami must be understood to understand how these systems work and how they can fail.
Most basically, there is a big, sudden move on the seafloor, which causes a tsunami. That movement is usually caused by earthquakes under or close to the sea, but other prospective causes include volcanic flare-ups, underground ripples, even a landslide above sea levels, such as a big rock that breaks an iceberg or a meter that strikes the sea.
How Does Tsunami Warning System Work?
Since seismic activity on the seafloor causes a vast majority of tsunamis - but the warning systems begin with seismic monitoring. Sea-floor sensors track the earthquakes and volcanoes' seismic activity. When there is a significant seismic incident, surface boiling sensors monitor changes at sea level. Tsunami waves might be as shallow as three feet in height, so they are put in the range to determine both movement and elevation.
These sensors in the sea and the surface box send data 24/7 to tsunami warning centers. The centers are mo