How do ground conditions affect earthquake damage to buildings?

Ground conditions such as loose soil, soft ground etc. affect the damage caused by an earthquake. Hence, an earthquake will cause a great damage to a building built on a soft ground. Such ground undergo a process of liquefaction during earthquake which makes them to behave as liquids.

What kinds of damage are caused by severe shaking of an earthquake?

The damage caused by earthquakes is from ground shaking, ground rupture, landslides, tsunamis, and liquefaction. Earthquake damage from fires is the most important secondary effect.

What are the different earthquake hazards?

Earthquake Hazards

Ground Shaking. If an earthquake generates a large enough shaking intensity, structures like buildings, bridges and dams can be severley damaged, and cliffs and sloping ground destabilised.
Tsunami.
Landslides and Rockfalls.
Subsidence and Lateral Spreading.
Liquefaction.

Where are the locations most at risk for earthquakes?

The 16 states with the highest earthquake hazard from natural earthquakes are Alaska, Arkansas, California, Hawaii, Idaho, Illinois, Kentucky, Missouri, Montana, Nevada, Oregon, South Carolina, Tennessee, Utah, Washington, and Wyoming.

What type of ground causes the most destruction?

surface waves
Seismic waves can be classified into two basic types: body waves which travel through the Earth and surface waves, which travel along the Earth’s surface. Those waves that are the most destructive are the surface waves which generally have the strongest vibration.

What type of ground material shakes the most?

Soft soils such as sand tend to amplify the shaking compared with hard soils such as bedrock. In addition to being soft, sand can also undergo a “liquefaction process” during an earthquake.

What is the weakest intensity scale?

Answer: The PEIS has ten intensity scales represented in Roman numerals with Intensity I being the weakest.

What are 3 things that cause earthquakes?

5 Main Causes of Earthquakes
- Volcanic Eruptions. The main cause of the earthquake is volcanic eruptions.
- Tectonic Movements. The surface of the earth consists of some plates, comprising of the upper mantle.
- Geological Faults.
- Man-Made.
- Minor Causes.
What are the warning signs of earthquakes?

Method 1 of 3: Earthquake lights have been observed as short, blue flames coming up from the ground, as orbs of light that float in the air, or as huge forks of light that look like lightening shooting up from the ground.

What natural hazards are there on Earth?

Among the natural hazards and possible disasters to be considered are:
- Earthquakes.
- Volcanic Eruptions.
- Tsunami.
- Landslides.
- Subsidence.
What is the most dangerous fault line in the world?

The Hayward Fault is considered one of the most powerful fault lines in the world, running parallel to the potentially catastrophic San Andreas fault, and 150 years almost to the day, researchers warn it is overdue a quake.

What state has never had an earthquake?

Florida and North Dakota are the states with the fewest earthquakes.

How to test the suitability of a building site?

positions from which samples were taken. If the proposed building is low rise, trial holes may be dug by a mechanical back hoe or by hand. During digging, the sides of the excavations must be supported so the hole can be entered safely to take samples.

What are some good questions for a survey?

In the beginning, focus on the big things: 1 Who are your users? 2 What do potential customers want? 3 How are they using your product? 4 What would win their loyalty?

What to do if ground is not suitable for building?

If the ground does not meet the bearing pressure from the penetrometer test or the building is outside the scope of NZS 3604, the ground condition must be assessed by a geotechnical or soil engineer. Soil types that have insufficient bearing pressure include peat, sand and expansive clay.

What are the different types of harmful molds?

Harmful molds can be any of the following classifications: Allergenic: Molds that cause and produce allergies and allergic reactions such as asthma attacks. Pathogenic: Molds that cause health problems in those suffering from an acute illness.

What are the most dangerous items in schools?

Scissors Many of the most dangerous items are staples of any classroom. In this case, scissors are commonly used for arts and crafts. Unfortunately, if kids are not adequately supervised, they may slip and suffer a severe injury. 9. Power Tools

Why are scissors so dangerous in the classroom?

This is partly because there are so many issues to account for. From bullies to weapons being brought to school and even defective playground equipment, school injuries occur at an alarming rate. 10. Scissors Many of the most dangerous items are staples of any classroom. In this case, scissors are commonly used for arts and crafts.

How often does something go wrong on school grounds?

Unfortunately, there are hundreds of things that could go wrong on school grounds, and tens of thousands of injuries occur every year on these properties. This is partly because there are so many issues to account for.

Who is responsible for an unsafe environment in a school?

Teachers, who may permit an action or fail to correct an unsafe condition. Administrators, who may fail to correct a problem when it is presented. Students, who may assault others or otherwise create an unsafe environment. Depending on the situation, all of these parties may be held liable in a personal injury claim.