the alarm went off
Seguí durmiendo porque no sonó la alarma.
I kept sleeping because the alarm didn’t go off.
The fire alarm sounded.
Tom saltó de la cama apenas sonó la alarma.
Tom jumped out of bed as soon as the alarm went off.
Un día sonó la alarma, todos escaparon, y nos quedamos solos.
One day the alarm went off, everyone escaped, and we were left alone.
— Roma. Ciudad abierta (1945)
Sonó la alarma y todos salieron corriendo.
The alarm sounded and everyone ran out.
Sonó la alarma y todos debieron evacuar.
The alarm sounded and everyone had to evacuate.
Salieron juntos del edificio cuando sonó la alarma de incendio.
They left the building together when the fire alarm sounded.