When does earthquake early warning work the best?

Which of the following buildings is the safest design? (Assume that all of the buildings are properly constructed. A poorly built building is weak no matter what it's made out of!)

When you prepare your earthquake kit, you need to have enough water to survive for how long? (During this time, the water needs to cover all your needs for every family member, pet, cooking, cleaning, washing, etc...)

Pretend that you just felt an earthquake. You felt a few seconds of shaking, then it was still for a few seconds, and then things started shaking again. Which pulse was probably stronger (first or second)?

You are talking on the phone to your friend and she feels the earthquake a few seconds BEFORE you. Who is closer to the earthquake source, you or your friend?

P-waves are felt before S-waves because:

By counting the number of years since the last earthquake, you can determine the year the next earthquake will occur. Your answer will be accurate to within a few years.

Why do many of the earthquakes on the planet occur along the Ring of Fire?

Where do you expect most earthquakes to occur?

Can scientists currently predict earthquakes?

In order for scientists to consider a prediction useful, the person must tell you several things about the earthquake they expect. What are they?,,

Scientists can forecast earthquakes like they forecast the weather -- providing you the probability that an earthquake will occur in certain places over a certain time interval. Over what time interval do scientists in California usually make these forecasts?

The UCERF3 earthquake forecast describes the chance that a large earthquake will occur in different regions. According to the model, what is the probability of a Magnitude 6.7 or larger earthquake in Los Angeles in the next 30 years? You will likely need to refer to online resources. Be careful because UCERF3 also produces an estimate that covers all southern California. This question is asking about the Los Angeles-specific region.