This document discusses tsunamis and tsunami warning systems. It explains that tsunamis are caused by large displacements of water, often due to earthquakes, landslides, or volcanic eruptions. It then describes how tsunami warning systems work, including how the Meteorological Agency issues warnings within three minutes of an earthquake with estimates of tsunami arrival times and heights. However, it notes shortcomings in that actual tsunami heights and times may differ from forecasts. It suggests developing more accurate forecasts based on observed data while still issuing warnings that assume maximum tsunami scales.

1. Tsunami warnig system
s1180052 Tomoko Kaneko

2. Introduction
* Tsunami happens what happens when?
* About tsunami warning system
* Advantage of tusnami warning system
* Shortcomings of the tsunami warning system
* How to debelop future ?

3. Tsunami happens what happens
when?
● Where the continuous tidal wave caused by the movement of
large water caused by meteorological factors such as
earthquakes, landslides, undersea volcanic eruptions,
meteorites fall non factors.
● Cases include geological factors such as the landslide
happen underwater plate earthquake and coastal areas as the
cause of the tsunami in the sea and submarine volcanic
activity, submarine landslide was caused by falling meteorites
into oceanic later in the past have been confirmed.

4. About tsunami warning system
● In a sort of advisories about tsunami if you expect large tsunami
earthquake due to be announced.
● Meteorological Agency from the occurrence of an earthquake
generally within three minutes, and announced goal, time and height
with coastal areas reaching the tsunami is expected to be
announced.

5. Advantage of tsunami warning system
● Ahead of time to evacuate from the indoor
● We can move the furniture
● It can be noted not to approach the coast.
● The dead by the tsunami can be reduced.

6. Shortcomings of the tsunami warning system
● The height of actual attainment time and the tsunami might
be different.
● With this, none of tsunamis that are lower than it alone run
away when an untrustworthy, really large tsunami comes even
if the Meteorological Agency issues a tsunami warning.

7. How to debelop future ?
● Tsunami information in the future announces warning the
assumption maximum scale.
● Trying from observed data, such as more accurate scale
becomes a devalue alarm content at an appropriate level.

8. Summary
As for the tsunami warning system, an accurate
forecast might not be done though the tsunami
can be perceived beforehand.