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On Feb. 13, 2012, NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) sensor detected heat signatures on Tinakula. Over the past decade, satellites have detected intermittent thermal anomalies on the island that suggest eruptions have taken place, but eyewitness observations are infrequent.
Around the island, the reflection of sunlight on the ocean”sunglint”gives the surface a milky appearance that makes the wave patterns readily visible. The image was collected by the Advanced Land Imager (ALI) on the Earth Observing-1 (EO-1) satellite.
Source: NASA
