Earthquake-Resistant Design

Question 1

Which statement shows the correct way a tsunami warning system works from the moment an under‑sea earthquake occurs until people on the coast are warned to evacuate?

Accepted Answer

Seismometers feel the earthquake, scientists quickly decide if a tsunami might happen, then buoys in the ocean measure any rise in water, and finally sirens and alerts are sent to the coast.

Answer

Buoys in the ocean first notice a sudden rise in water, then seismometers confirm an earthquake, after which the warning center sends alerts to the coast.

Answer

Scientists look at news reports of waves, then decide to sound sirens if the waves look big.

Answer

Seismometers feel the earthquake, the warning center immediately sends an evacuation alert, and later the buoys check the water level.

Question 2

Which feature helps a building stay safe during an earthquake?

Accepted Answer

Flexible base isolators that let the building move with the shaking

Answer

Large windows that let strong winds blow through

Answer

Very heavy stone walls that make the building stay down

Answer

Brightly painted walls that make the building look nice

Question 3

Miguel is helping build a new playground shelter in a town that sometimes feels strong shakes. Which design feature would most help the shelter stay safe when the ground moves?

Accepted Answer

A flexible steel frame with joints that can bend

Answer

Heavy stone walls that are very solid

Answer

Thin wooden walls with no extra braces

Answer

Large glass windows that let in a lot of light

Try three questions

Which statement shows the correct way a tsunami warning system works from the moment an under‑sea earthquake occurs until people on the coast are warned to evacuate?

Which feature helps a building stay safe during an earthquake?

Miguel is helping build a new playground shelter in a town that sometimes feels strong shakes. Which design feature would most help the shelter stay safe when the ground moves?

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