Which of the following statements about earthquakes is incorrect?

The statement regarding earthquake predictability is incorrect because, despite advances in seismology, earthquakes are generally not predictable on a time scale that would allow for effective warning. While scientists can assess the likelihood of an earthquake occurring in a certain area over a long period based on historical data and geological conditions, they cannot provide precise predictions about when and where an earthquake will occur. Therefore, the use of terms like "predictable" is misleading in the context of earthquakes.

In contrast, the other statements accurately reflect characteristics of earthquakes. The duration of earthquakes can indeed vary, lasting from just a few seconds up to several minutes, which highlights the different magnitudes and impacts that can occur. Most casualties during an earthquake arise from falling debris, which poses significant risks to individuals in buildings or near structures. Additionally, while the ground movement associated with an earthquake causes injury or death through immediate effects, the secondary consequences, such as structural failures and landslides, can also contribute to these tragic outcomes.