In recent decades, residents across Auckland have reported hearing a strange low-frequency humming sound with no clear source. The hum is usually most noticeable at night, described as a constant droning or vibrating tone. While some attribute it to industrial noise or environmental factors, others note it appears and disappears suddenly without explanation. Similar to the Taos and Bristol Hums, the Auckland Hum adds New Zealand to the list of global “mystery hum” hotspots.I