Learning Task 5: Read the text and complete the table below. Then, convert the details of the given text into a diagram using appropriate
graphic organizer. Do this in your notebook.
Tsunami is a series of waves that are produced by the sudden
movement of the seabed---earthquakes, volcanic eruptions,
underwater landslide or even an asteroid. But frequently, they are
set off by earthquakes occurring at a depth of less than 50 meters
measuring at least 6.5 in magnitude.
At a magnitude of eight (8), a tsunami can be devastating. The
shifts of the ocean floor caused water to be folded, lowering the sea
level and deforming the surface of the ocean. Seismic waves are
produced which in turn trigger another series of waves in deep
water far from the epicenter of the earthquake. The tsunami
reaches a few thousand centimeters, but its height increases as the
bottom of the ocean floor rises.
In extreme cases, the waves take on speed of 500 to 800
kilometers per hour when the water is very deep, decreasing in
speed to about 20 or 30 kilometers per hour as they approach the
coast. The waves can reach heights of up to 30 meters, breaking
one after the other at intervals of 10 to 40 minutes sweeping away
everything in their path. Tsunami, which is a Japanese word for
harbour wave, occurs mainly in regions of strong tectonic activity.
tube.com/watch?v=564RTZ6Wig
graphic organizer. Do this in your notebook.
Tsunami is a series of waves that are produced by the sudden
movement of the seabed---earthquakes, volcanic eruptions,
underwater landslide or even an asteroid. But frequently, they are
set off by earthquakes occurring at a depth of less than 50 meters
measuring at least 6.5 in magnitude.
At a magnitude of eight (8), a tsunami can be devastating. The
shifts of the ocean floor caused water to be folded, lowering the sea
level and deforming the surface of the ocean. Seismic waves are
produced which in turn trigger another series of waves in deep
water far from the epicenter of the earthquake. The tsunami
reaches a few thousand centimeters, but its height increases as the
bottom of the ocean floor rises.
In extreme cases, the waves take on speed of 500 to 800
kilometers per hour when the water is very deep, decreasing in
speed to about 20 or 30 kilometers per hour as they approach the
coast. The waves can reach heights of up to 30 meters, breaking
one after the other at intervals of 10 to 40 minutes sweeping away
everything in their path. Tsunami, which is a Japanese word for
harbour wave, occurs mainly in regions of strong tectonic activity.
tube.com/watch?v=564RTZ6Wig