How strong was the largest earthquake in world history?

1. How strong was the largest earthquake in world history?

• A

  9.2 Richter scale

• B

  9.3 Richter scale

• C

  9.4 Richter scale

• D

  9.5 Richter scale

  According to the National Centers for Environmental Information (USA), the 1960 Chile earthquake with a magnitude of 9.5 on the Richter scale was the largest earthquake ever recorded by instruments. A series of earthquakes that followed devastated southern Chile and created one of the longest faults ever recorded.
  Subsidence caused by the earthquake caused localized flooding in Chile. This permanently changed the coastline of much of the area in Chile affected by the earthquake, rendering all nautical charts of the affected areas obsolete.

2. How many million USD is the damage caused by this earthquake and tsunami estimated?

• A

  500 million USD

• B

  550 million USD

  The Chilean government estimates that nearly 2 million people were left homeless and more than 58,000 homes were completely destroyed. Damage from the earthquake and tsunami amounted to more than $550 million.
  In Hawaii, the tsunami caused more than $23.5 million in damage, and the West Coast of the United States suffered an additional $1 million in damage.

• C

  600 million USD

• D

  650 million USD

3. Who invented the Richter scale?

• A

  Isaac Newton

• B

  Galileo Galilei

• C

  Albert Einstein

• D

  Charles Richter

  The Richter scale has been used to measure the magnitude or largest wave of energy produced by earthquakes since 1935. Charles Richter invented the Richter scale in 1935. He was a seismologist who studied earthquakes. Charles was not always interested in earthquakes and said that he actually got into seismology by accident.
  Charles was originally a physics PhD student at the California Institute of Technology. When his professor asked him if he wanted to work in the seismology lab, he agreed, even though he didn't study earthquakes.
  Charles invented the Richter scale while working at the Carnegie Institution in Pasadena, California, as a research assistant to seismologist Beno Gutenberg. The Richter scale was originally developed for use only in Southern California, but it can now be used to measure earthquakes worldwide.

4. What signs can warn of an earthquake?

• A

  Animals showing abnormal behavior

• B

  The ground cracked suddenly

• C

  Rising, boiling or changing water level

• D

  All three answers above

  According to the Community Disaster Preparedness Foundation, geologists say it is virtually impossible to predict where and when an earthquake will occur. However, experts have identified a few telltale signs that an earthquake may be coming.
  First, strange behavior from animals. Animals often have a premonition when a natural disaster occurs. At that time, they may change their behavior or have strange behavior, from which they can recognize that an earthquake or natural disaster is about to occur.
  Second, observe the water level of rivers and lakes around your living area. If you notice that the water level of rivers and lakes around your living area is showing signs of receding or overflowing abnormally without any heavy rain, it is very likely that there will be a change soon.
  Third , the sky is unusually calm. If you notice an unusual calmness in the atmosphere, this is a sign of impending disaster, a sign of strange climate change, most likely, an earthquake is about to take place in the area.
  Fourth, seeing “earthquake lights”. When there is an earthquake, underground faults release electrical charges into the air. These ionize the air particles and as a result cause “earthquake lights”.

5. Where was the largest earthquake in Vietnam's history recorded?

• A

  Hanoi

• B

  Kon Tum

• C

  Yen Bai

• D

  Dien Bien

  In the past 100 years, Dien Bien province has had 3 earthquakes with magnitudes of 5.3 - 6.9 on the Richter scale. Specifically: in 1935, an earthquake of magnitude 6.9 occurred in the Dien Bien basin, in 1983 it occurred in Tuan Giao town with magnitude 6.7, in 2001 it occurred in Dien Bien Phu city with magnitude 5.3 and this earthquake caused damage of about 210 billion VND, destroying many works of the State and the People.
  In 2017 alone, the province experienced 7 earthquakes in the districts of Dien Bien, Muong Cha, Dien Bien Dong, Tuan Giao, Tua Chua and Muong Lay town with magnitudes ranging from 2.1 to 3.9 on the Richter scale.

Lam Hoang

Source: https://vtcnews.vn/tran-dong-dat-lon-nhat-lich-su-the-gioi-manh-bao-nhieu-do-richter-ar934846.html