How Earthquakes Make Buildings Vibrate 2 - Resonance in Buildings

The picture shows two buildings. Imagine the tall building has a fundamental frequency of 5.5 Hertz and
the small building has a fundamental frequency of 7.5 Hertz.

If the ground moved to and fro with a frequency of 5.5 Hertz, the tall building would vibrate strongly, or resonate, while the short building hardly moved at all.
(See Animation)

If the ground moved to and fro with a frequency of 7.5 Hertz, the small building would resonate while the tall building hardly moved at all. (See Animation)

During an earthquake, the ground shakes with a mixture of frequencies of vibration.
If the frequencies ranged between 5.0 and 6.0 Hertz, which of the two model buildings would you expect to vibrate most? (Answer)