This is the 8593rd most frequent Japanese word.
揺るがし
"揺るがし" means "shake" or "unsettle."
Here, 揺るがし is used literally, describing physical motion caused by the earthquake affecting the structure.
地震が建物を激しく揺るがした。
The earthquake shook the building violently.
In this context, 揺るがし metaphorically refers to causing doubt or instability in people's convictions.
彼の宣言は人々の信念を揺るがした。
His proclamation shook people's beliefs.
In this sentence, 揺るがし means 'to shake' metaphorically, indicating a disturbance to society's base or stability.