Francesco Biancu, 33, of St James Street, St Peter Port, is charged with communicating information that he knew to be false, namely that a bomb or other thing was present and likely to explode or ignite in any place or location.
He is charged under the Terrorism and Crime Law. He was given time to take legal advice and no plea was entered.
He will appear in court again in two weeks' time and his conditional bail was extended until then.
