Page 1
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Page 2
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Tsunami
• Tsunami is a Japanese word for “Harbour wave”. A
tsunami is a series of very long-wavelength waves in
large water bodies like seas or large lakes caused by a
major disturbance above or below the water surface or due
to the displacement of a large volume of water.
• Earthquakes (e.g. 2004 Indian Ocean Tsunami), volcanic
eruptions (e.g. tsunami caused by the violent eruption of
Krakatoa in 1883), landslides (tsunami caused by the
collapse of a section of Anak Krakatoa in 2018), underwater
explosions, meteorite impacts, etc. have the potential to
generate a tsunami.
Page 3
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Tsunami
• Tsunami is a Japanese word for “Harbour wave”. A
tsunami is a series of very long-wavelength waves in
large water bodies like seas or large lakes caused by a
major disturbance above or below the water surface or due
to the displacement of a large volume of water.
• Earthquakes (e.g. 2004 Indian Ocean Tsunami), volcanic
eruptions (e.g. tsunami caused by the violent eruption of
Krakatoa in 1883), landslides (tsunami caused by the
collapse of a section of Anak Krakatoa in 2018), underwater
explosions, meteorite impacts, etc. have the potential to
generate a tsunami.
• Tsunamis are a series of waves of very, very long
wavelengths
• They travel at high speeds in deep waters, and
their speed falls when they hit shallow waters.
• Tsunami waves are not noticed by ships far out at
sea.
• The rate of energy loss of a wave is inversely related to
its wavelength. So, tsunamis lose little energy as they
propagate because of their very large wavelength.
Page 4
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Tsunami
• Tsunami is a Japanese word for “Harbour wave”. A
tsunami is a series of very long-wavelength waves in
large water bodies like seas or large lakes caused by a
major disturbance above or below the water surface or due
to the displacement of a large volume of water.
• Earthquakes (e.g. 2004 Indian Ocean Tsunami), volcanic
eruptions (e.g. tsunami caused by the violent eruption of
Krakatoa in 1883), landslides (tsunami caused by the
collapse of a section of Anak Krakatoa in 2018), underwater
explosions, meteorite impacts, etc. have the potential to
generate a tsunami.
• Tsunamis are a series of waves of very, very long
wavelengths
• They travel at high speeds in deep waters, and
their speed falls when they hit shallow waters.
• Tsunami waves are not noticed by ships far out at
sea.
• The rate of energy loss of a wave is inversely related to
its wavelength. So, tsunamis lose little energy as they
propagate because of their very large wavelength.
Mechanism of Tsunami Waves
Page 5
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Tsunami
• Tsunami is a Japanese word for “Harbour wave”. A
tsunami is a series of very long-wavelength waves in
large water bodies like seas or large lakes caused by a
major disturbance above or below the water surface or due
to the displacement of a large volume of water.
• Earthquakes (e.g. 2004 Indian Ocean Tsunami), volcanic
eruptions (e.g. tsunami caused by the violent eruption of
Krakatoa in 1883), landslides (tsunami caused by the
collapse of a section of Anak Krakatoa in 2018), underwater
explosions, meteorite impacts, etc. have the potential to
generate a tsunami.
• Tsunamis are a series of waves of very, very long
wavelengths
• They travel at high speeds in deep waters, and
their speed falls when they hit shallow waters.
• Tsunami waves are not noticed by ships far out at
sea.
• The rate of energy loss of a wave is inversely related to
its wavelength. So, tsunamis lose little energy as they
propagate because of their very large wavelength.
Mechanism of Tsunami Waves
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