Key insights

• 🌍 PEIS or VBOX earthquake intensity scale measures earthquake intensity, distinguishing between magnitude and intensity.
• 📏 Magnitude represents the energy released at the earthquake's focus, while intensity reflects the strength perceived by people in a given area.
• 🔍 PEIS has 10 intensity levels, with intensity 1 barely perceptible and intensity 2 slightly felt.
• 🏠 Seismic intensities 3 to 6 affect both indoor and outdoor environments, waking sleepers, damaging properties, and impacting standing vehicles and trees.
• 🏗️ Different earthquake intensities cause varied effects on structures, people, and the environment, ranging from slight damage to severe structural and infrastructural consequences.
• 💥 Severe intensities may result in widespread destruction including structural damage, landslides, rockfalls, and violent shaking of trees and water bodies.
• 💔 Several devastating earthquakes in the last 10 years have caused massive loss of life, with some earthquakes claiming hundreds or even thousands of lives.
• 💰 Devastating earthquakes have led to significant economic damage and the destruction of thousands of homes and buildings, impacting communities on a large scale.

Q&A

• How have devastating earthquakes impacted various countries?

  Powerful earthquakes in various countries have caused significant loss of life and widespread destruction, resulting in massive economic damage, destruction of thousands of homes and buildings, and far-reaching devastating impacts.

• Can you provide a list of some of the deadliest earthquakes in the last 10 years and their impact?

  Certainly! Here are some of the deadliest earthquakes in the last 10 years and their impact: September 19, 2017: 7.1 magnitude quake in Mexico, killing at least 369 people. August 24, 2016: 6.2 magnitude quake in Italy, killing about 300 people. April 16, 2016: 7.8 magnitude earthquake in Ecuador, killing more than 650 people. April 25, 2015: 7.8 magnitude earthquake in Nepal, killing nearly 9,000 people. August 3, 2014: 6.3 magnitude earthquake in China, killing at least 600 people. September 24, 2013: Twin earthquakes in Pakistan, killing at least 825 people. August 11, 2012: Two strong earthquakes in Iran, killing at least 300 people.

• What are the consequences of severe seismic intensities?

  Severe seismic intensities can cause widespread destruction, including structural damage, landslides, rockfalls, ground distortion in mountainous and hilly areas, violent shaking of trees and water bodies, and massive subsidence, uplift, and changes in river courses.

• What impact do different earthquake intensities have on structures, people, and the environment?

  Different earthquake intensities cause varied effects, ranging from slight damage to very destructive consequences. Specific impacts include heavy objects and furniture shifting, buildings suffering damage, and infrastructure being affected. Liquefaction, landslides, and specific damages to structures and infrastructure are also observed.

• What are the effects of seismic intensities 3 to 6 on people and objects?

  Seismic intensities ranging from 3 to 6 can have various effects, including awakening sleepers, causing damage to properties, and observable effects on standing vehicles and trees in both indoor and outdoor environments.

• What is the difference between magnitude and intensity?

  Magnitude measures the energy released by an earthquake at the focus, while intensity measures the strength perceived and felt by people in a certain locality.

• What is the PEIS or VBOX earthquake intensity scale?

  The PEIS or VBOX earthquake intensity scale is used to identify the level of intensity of earthquakes. It consists of 10 intensity levels, with intensity 1 being scarcely perceptible and intensity 2 being slightly felt.

• 00:01 The teacher is discussing the PEIS or VBOX earthquake intensity scale, explaining the difference between magnitude and intensity, and describing the first two intensity levels.
• 02:37 The video segment discusses the effects of different seismic intensities on people and their surroundings, ranging from weak vibrations to very strong shaking.
• 05:27 The video segment explains the impact of different earthquake intensities, from slight damage to very destructive consequences, on structures, people, and the environment.
• 08:07 Severe seismic intensities can cause widespread destruction including bent, twisted, or broken structures, landslides, rockfalls, and violent shaking of trees and water bodies.
• 11:48 🌍 List of some of the deadliest earthquakes in the last 10 years and their impact.
• 14:01 Several devastating earthquakes have caused massive destruction and loss of life in various countries, leading to significant economic damage and the destruction of thousands of homes and buildings.