An earthquake shook residents on the mid-north coast of New South Wales from their sleep this morning. Geoscience Australia says it happened just off Nelson Bay, north of Newcastle, around 3:30am (AEDT) and was measured with a magnitude of 3.3. Several residents at Nelson Bay felt shaking and called police. Fire crews also responded to reports of an explosion on the Tomaree Peninsula. Anna Bay resident Lindsay Brown says he feared the worst because of the similarity to the devastating 1989 Newcastle earthquake. "The Newcastle one sprang to mind straight away because we were here at that time as well,"...