Tugas Bahasa Inggris (2014-2015)

1. TSUNAMI
A Dreadful Disaster
XII-IPA 4
SMAN 19 SURABAYA

2. Member’s Name
• Burhanuddin Muhammad Zhirof (20)
• Rendy Febrian Pontoan (29)
• Rizqi Rindra Firmansyah (31)
• Louis Andrew Reinhard Lelapary (36)
• Farras Aprilia (40)

3. Definition
A tsunami is a series of
waves generated when water
in a lake or in the sea is rapidly
displaced on a massive scale.
Earthquakes, landslides,
volcanic eruptions and large
meteorite impacts all have the
potential to generate a
tsunami. The effects of a
tsunami can range from
unnoticeable to devastating.

4. The term of tsunami comes from the
Japanese language meaning
harbour (tsu) and wave (nami).
Although in Japanese tsunami is
used for both singular and plural, in
English “tsunamis” is well-established
as the plural. The term was created
by fisherman who returned to port
to find the area surrounding the
harbor devastated, although they
had not been aware of any wave in
the open water. A tsunami is not a
sub-surface event in the deep
ocean; it simply has a much smaller
amplitude (wave heights) offshore,
a very long wavelength (often
hundreds kilometers long), which is
why they generally pass unnoticed
at sea, forming only a passing
“hump” in the ocean.

5. The term seismic sea wave also
is used to refer to the
phenomenon, because the
waves most often are generated
by seismic activity such as
earthquakes. Prior to the rise of
the use of the term "tsunami" in
English-speaking countries,
scientists generally encouraged
the use of the term "seismic sea
wave" rather than the
inaccurate term "tidal wave."
However, like "tsunami," "seismic
sea wave" is not a completely
accurate term, as forces other
than earthquakes – including
underwater landslides, volcanic
eruptions, land slumping into the
ocean, meteorite impacts, or
even the weather when the
atmospheric pressure changes
very rapidly – can generate such
waves.

6. Tsunamis have been historically
referred to as “tidal waves”
because as they approach
land they take on the
characteristics of a violent
onrushing tide rather than the
sort of cresting waves that are
formed by wind action upon
the ocean (with which people
are more familiar). However,
since they are not related to
tides, the term is considered
misleading and its usage is
discouraged by
oceanographers.

7. Passive voice
 The effects of a tsunami can range from unnoticeable to
devastating.
 The term was created by fisherman who returned to port
to find the area surrounding the harbor devastated,
although they had not been aware of any wave in the
open water.
 the term is considered misleading and its usage is
discouraged by oceanographers.
 The term seismic sea wave also is used to refer to the
phenomenon, because the waves most often are
generated by seismic activity such as earthquakes.

8. THANK YOU
for your atterntion