Maths
Chemistry
Biology
English Language
History
Responding to change (a2 only)
Infection and response
Homeostasis and response
Energy transfers (a2 only)
Cell biology
Organisms respond to changes in their internal and external environments (a-level only)
Biological molecules
Organisation
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
Show all topics
Britain & the wider world: 1745 -1901
1l the quest for political stability: germany, 1871-1991
The cold war
Inter-war germany
Medieval period: 1066 -1509
2d religious conflict and the church in england, c1529-c1570
2o democracy and nazism: germany, 1918-1945
1f industrialisation and the people: britain, c1783-1885
1c the tudors: england, 1485-1603
2m wars and welfare: britain in transition, 1906-1957
World war two & the holocaust
2n revolution and dictatorship: russia, 1917-1953
2s the making of modern britain, 1951-2007
World war one
Britain: 1509 -1745
Show all topics
Geography
12 Dec 2025
154
4 pages
Kevin๐ป๐ป @kevin_82882
Two massive earthquakes struck different parts of the world within just over a year of each other, showing... Show more
Japan sits right in the middle of the Pacific Ring of Fire, where several massive tectonic plates crash into each other constantly. This makes it one of the most earthquake-prone places on Earth โ but also one of the most prepared for dealing with them.
On 11th March 2011, at 246 PM, Japan was hit by a magnitude 9.0 earthquake โ the most powerful ever recorded in the country. The earthquake happened under the sea, about 70 kilometres off Japan's coast, and what came next was even more terrifying than the shaking itself.
The primary effects were absolutely devastating. The earthquake triggered a tsunami with waves reaching up to 40 metres high โ imagine a wall of water taller than a ten-storey building racing towards land at incredible speed. Nearly 16,000 people died, mostly from drowning in the tsunami rather than from the earthquake itself.
Did you know? The tsunami was so powerful it flooded over 561 square kilometres of land and completely wiped entire towns off the map.
The disaster also caused the Fukushima nuclear plant to meltdown when the tsunami waves overwhelmed its safety systems, forcing over 160,000 people to evacuate their homes due to radiation.
Japan's secondary effects showed just how interconnected our modern world really is. The disaster cost around $235 billion, making it the most expensive natural disaster in history. Factories shut down, which meant everything from cars to computer parts couldn't be made, affecting businesses worldwide.
The Fukushima nuclear disaster completely changed Japan's energy policy. All nuclear power plants were shut down temporarily, forcing Japan to rely much more heavily on importing fossil fuels. This created an energy crisis that lasted for years.
Over 470,000 people had to live in temporary shelters, and many families from the Fukushima area still can't return home due to radioactive contamination. The psychological impact was enormous too โ many survivors developed depression, anxiety, and PTSD from the trauma.
Recovery fact Japan's reconstruction efforts have been ongoing for over a decade, focusing heavily on building better sea walls and earthquake-resistant buildings.
However, Japan's wealth and advanced technology meant they could begin massive reconstruction projects relatively quickly, though the process has been incredibly expensive and time-consuming.
Haiti couldn't be more different from Japan in terms of wealth and disaster preparedness. As one of the poorest countries in the Western Hemisphere, Haiti was already struggling with basic infrastructure and poverty before disaster struck.
On 12th January 2010, a magnitude 7.0 earthquake hit near the capital, Port-au-Prince. Though smaller than Japan's quake, the impact was proportionally much more devastating because Haiti simply wasn't prepared for it.
The primary effects were catastrophic. An estimated 230,000 people died โ that's about 15 times more deaths than Japan despite having a smaller earthquake. Over 300,000 people were injured, and 1.5 million lost their homes completely.
Shocking statistic Over 250,000 homes and 30,000 businesses were destroyed because most buildings weren't built to withstand earthquakes.
The earthquake didn't just destroy buildings โ it completely crippled Haiti's government. The National Palace collapsed, many government officials died, and the country's already weak institutions basically stopped functioning when people needed them most.
Haiti's secondary effects show what happens when a natural disaster hits a country that's already struggling. The economic damage of $8 billion was actually bigger than Haiti's entire yearly economy โ imagine losing more money than your country even makes.
Without proper sanitation systems, disease outbreaks became a major killer. A cholera epidemic started in October 2010 because of contaminated water, killing over 9,000 more people and making hundreds of thousands sick.
The 1.5 million people living in temporary tent cities faced terrible conditions. Many children couldn't go to school for months or years because their schools were destroyed, which affected an entire generation's education and future prospects.
International aid poured in from around the world, but the recovery has been painfully slow. Political problems, corruption, and the sheer scale of destruction meant that even billions of dollars in aid couldn't fix everything quickly.
Key lesson These two disasters show that a country's level of development and preparedness can be just as important as the earthquake's strength in determining how many people suffer.
Both earthquakes highlight why disaster preparedness, strong building codes, and effective government response systems can literally be the difference between life and death for thousands of people.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help โ all at your fingertips.
2
Smart Tools NEW
Transform this note into: โ 50+ Practice Questions โ Interactive Flashcards โ Full Mock Exam โ Essay Outlines
Quotes from every main character
English LiteratureApp Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because itโs too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didnโt even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as Iโm sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH ๐๐๐ฒ๐ค๐โจ๐๐ฎ
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because itโs too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didnโt even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as Iโm sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH ๐๐๐ฒ๐ค๐โจ๐๐ฎ
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Kevin๐ป๐ป
@kevin_82882
Two massive earthquakes struck different parts of the world within just over a year of each other, showing how natural disasters can affect countries in completely different ways. The 2011 Japan earthquake and 2010 Haiti earthquake both caused devastating damage,... Show more
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Japan sits right in the middle of the Pacific Ring of Fire, where several massive tectonic plates crash into each other constantly. This makes it one of the most earthquake-prone places on Earth โ but also one of the most prepared for dealing with them.
On 11th March 2011, at 2:46 PM, Japan was hit by a magnitude 9.0 earthquake โ the most powerful ever recorded in the country. The earthquake happened under the sea, about 70 kilometres off Japan's coast, and what came next was even more terrifying than the shaking itself.
The primary effects were absolutely devastating. The earthquake triggered a tsunami with waves reaching up to 40 metres high โ imagine a wall of water taller than a ten-storey building racing towards land at incredible speed. Nearly 16,000 people died, mostly from drowning in the tsunami rather than from the earthquake itself.
Did you know? The tsunami was so powerful it flooded over 561 square kilometres of land and completely wiped entire towns off the map.
The disaster also caused the Fukushima nuclear plant to meltdown when the tsunami waves overwhelmed its safety systems, forcing over 160,000 people to evacuate their homes due to radiation.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Japan's secondary effects showed just how interconnected our modern world really is. The disaster cost around $235 billion, making it the most expensive natural disaster in history. Factories shut down, which meant everything from cars to computer parts couldn't be made, affecting businesses worldwide.
The Fukushima nuclear disaster completely changed Japan's energy policy. All nuclear power plants were shut down temporarily, forcing Japan to rely much more heavily on importing fossil fuels. This created an energy crisis that lasted for years.
Over 470,000 people had to live in temporary shelters, and many families from the Fukushima area still can't return home due to radioactive contamination. The psychological impact was enormous too โ many survivors developed depression, anxiety, and PTSD from the trauma.
Recovery fact: Japan's reconstruction efforts have been ongoing for over a decade, focusing heavily on building better sea walls and earthquake-resistant buildings.
However, Japan's wealth and advanced technology meant they could begin massive reconstruction projects relatively quickly, though the process has been incredibly expensive and time-consuming.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Haiti couldn't be more different from Japan in terms of wealth and disaster preparedness. As one of the poorest countries in the Western Hemisphere, Haiti was already struggling with basic infrastructure and poverty before disaster struck.
On 12th January 2010, a magnitude 7.0 earthquake hit near the capital, Port-au-Prince. Though smaller than Japan's quake, the impact was proportionally much more devastating because Haiti simply wasn't prepared for it.
The primary effects were catastrophic. An estimated 230,000 people died โ that's about 15 times more deaths than Japan despite having a smaller earthquake. Over 300,000 people were injured, and 1.5 million lost their homes completely.
Shocking statistic: Over 250,000 homes and 30,000 businesses were destroyed because most buildings weren't built to withstand earthquakes.
The earthquake didn't just destroy buildings โ it completely crippled Haiti's government. The National Palace collapsed, many government officials died, and the country's already weak institutions basically stopped functioning when people needed them most.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Haiti's secondary effects show what happens when a natural disaster hits a country that's already struggling. The economic damage of $8 billion was actually bigger than Haiti's entire yearly economy โ imagine losing more money than your country even makes.
Without proper sanitation systems, disease outbreaks became a major killer. A cholera epidemic started in October 2010 because of contaminated water, killing over 9,000 more people and making hundreds of thousands sick.
The 1.5 million people living in temporary tent cities faced terrible conditions. Many children couldn't go to school for months or years because their schools were destroyed, which affected an entire generation's education and future prospects.
International aid poured in from around the world, but the recovery has been painfully slow. Political problems, corruption, and the sheer scale of destruction meant that even billions of dollars in aid couldn't fix everything quickly.
Key lesson: These two disasters show that a country's level of development and preparedness can be just as important as the earthquake's strength in determining how many people suffer.
Both earthquakes highlight why disaster preparedness, strong building codes, and effective government response systems can literally be the difference between life and death for thousands of people.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help โ all at your fingertips.
2
Smart Tools NEW
Transform this note into: โ 50+ Practice Questions โ Interactive Flashcards โ Full Mock Exam โ Essay Outlines
Quotes from every main character
English LiteratureApp Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because itโs too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didnโt even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as Iโm sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH ๐๐๐ฒ๐ค๐โจ๐๐ฎ
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because itโs too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didnโt even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as Iโm sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH ๐๐๐ฒ๐ค๐โจ๐๐ฎ
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Sociology