Just as I was thinking of calling my companions, I felt a faint trembling, which rapidly increased to a heavy shaking, of the house in which we slept.
There was a moment's pause, and then a second shaking, which began stronger than the other, but which lasted about the same time.

It was the most serious earthquake shock we ever experienced in Mexico.

Had the house been made of brick and plaster, considerable damage might have been done.

Everyone was wide awake in an instant.

The whole town was in excitement.