No, ultrasonic waves of higher frequency cannot cause an earthquake. Earthquakes are caused by the sudden release of energy in the Earth's crust, typically due to tectonic plate movements or volcanic activity. These seismic events occur on a much larger scale and involve the displacement of enormous amounts of rock and geological features.
Ultrasonic waves are high-frequency sound waves that are generally above the range of human hearing. While they can be powerful and capable of producing mechanical effects, they are not capable of generating the large-scale energy required to trigger an earthquake. The forces involved in earthquakes are associated with the movement of tectonic plates, which operate on a much larger scale and involve massive amounts of energy.
It's important to note that there are ongoing scientific studies and experiments exploring the potential influence of various factors, including human activities, on earthquakes. However, the notion that ultrasonic waves of higher frequency alone can cause earthquakes is not supported by scientific understanding at present.