WONDER #198: What Is an Earthquake?
Question 1 of 3
Earth can be divided into how many major layers?
Question 2 of 3
What occurs when two tectonic plates slip past each other suddenly?
Question 3 of 3
Scientists estimate there are how many detectable earthquakes around the world each year?
Check your answers online at https://www.wonderopolis.org/wonder/what-is-an-earthquake.