Earthquake origins
Shockwaves refer to the vibrations that spread outwards from the focus of an earthquake.
True/False.
True!
The word 'Magnitude' refers to the 'strength' of an earthquake
True or false?
True
______ was the country in Asia that we studied about an Earthquake in 2016.
Japan (Kumamoto in the south of the country)
Japanese school children practice this in school.
Duck, cover and hold!
Army and emergency services help recover ____ from the rubble?
Injured and dead individuals.
true or false:
Tsunami means "Harbour wave" in Japanese?
True!
What is the name of the scale that records the strength or magnitude of each earthquake?
The Richter scale
Haiti is considered a _______ country and is one of the poorest in the world
Developing
Risk of being killed by falling glass.
True or False;
When a hospital is damaged in an earthquake and its unsafe to admit patients.
Where might medical aid be set up?
the _____is the point on the Earth's surface that is directly above the focus of the earthquake.
Epicenter.
The scientific tool using a needle and ink to record the tremors of an earthquake underground is known as a __________
Seismograph.
230,000 people died instantly in the quake in Haiti.
Why was this figure so high?
Poorly built houses
epicentre being so close to the capital city.
Why is it a bad idea to run outside after an earthquake?
There might be downed power lines (risk of being electrocuted)
Aftershocks from the initial quake.
Risk of falling buildings/ rubble.
if you had a job working in a hotel that is now destroyed, what would you then experience?
Loss of income for weeks to months.
Along what type of plate boundaries are earthquakes most likely to happen? (more damage etc)
Destructive and Conservative plate boundaries.
(Earthquakes are possible at constructive boundaries too, but are far less impactful)
An earthquake under the sea is known as a ______
the speed at which these waves move can be up to ____km/h fast.
Tsunami
Up to 700km fast!!
What is the annual income for Japan compared to Haiti (Need both answers)
Japan $5.6 trillion
Haiti $3.6 billion
I will accept within .4 of the correct number.
List three things a person can do to try to keep as safe as possible during an earthquake. (Remember the video.)
Keep personal documents safe or on their person.
Store dangerous or sharp tools securely.
Arrange a meeting point for your family in advance.
a short-term impact of an earthquake would include?
(list 3)
1, Death and injury
2, Damage to property
3, Loss of power.
4, Damage to roads
5, Food and clean water shortages.
A Tsunami's power is felt more in shallow water like at the coastline.
Why?
The power of the moving water is compressed due to the slope of the seafloor. This causes the wave height to increase dramatically. This process is called shoaling.
there is another scale that is used to record earthquakes using eyewitness accounts. Known as a ________scale.
Why might it be less effective than a seismograph or the Richter scale.
The Marcalli Scale
Less scientifically based.
2 people might disagree on the scale of destruction; therefore, it is a less reliable source of information.
The epicentre in Haiti was only 25km south of the densely populated capital city.
The infrastructure (hospitals, homes and bridges and roads) are not built to withstand the force of a major earthquake.
What was the strongest earthquake ever recorded and what country did it hit?
9.5 magnitude on the Richter scale. Recorded in Valdivia, Chile, in May 1960.
If it takes years for infrastructure (Roads, bridges, hospitals etc) to be rebuilt, which country would be at a greater disadvantage?
Japan or Haiti
Give a reason why.
Haiti, because they are a developing country and the damage to its already poorer built and maintained infrastructure. they have to spend so much time and effort to get back to the baseline, its nearly impossible for them to build for the future without international aid.