Small Earthquake at Summit of Pu’u O’o – Lava Flows Onto Floor of Crater

A small earthquake of magnitude 3.6 occurred yesterday evening at 6 p.m. near the summit of the volcano. Over the past 24 hours, small amounts of lava flowed onto the floor of Puʻu ʻŌʻō.

The summit lava lake on 2/12/16.  Photo via USGS Hawaiian Volcano Observatory

The summit lava lake on 2/12/16. Photo via USGS Hawaiian Volcano Observatory (click to enlarge)

Webcam images show that small amounts of lava flowed onto the crater floor from two of the incandescent vents within the Puʻu ʻŌʻō crater. Yesterday, shortly before noon, and at around 10 p.m., lava flowed onto the floor from a vent on the east side of the crater, while this morning at around 6 a.m., lava flowed from one of the vents on the west side of the crater.

This current image is from a temporary thermal camera positioned on the northwest flank of Puʻu ʻŌʻō, looking southeast at Puʻu ʻŌʻō's summit crater.  The temperature scale is in degrees Celsius up to a maximum of 500 degrees (932 degrees Fahrenheit) for this camera model, and scales automatically based on the maximum and minimum temperatures within the frame.  Thick fume, image pixel size and other factors often result in image temperatures being lower than actual surface temperatures.

This current image is from a temporary thermal camera positioned on the northwest flank of Puʻu ʻŌʻō, looking southeast at Puʻu ʻŌʻō’s summit crater. The temperature scale is in degrees Celsius up to a maximum of 500 degrees (932 degrees Fahrenheit) for this camera model, and scales automatically based on the maximum and minimum temperatures within the frame. Thick fume, image pixel size and other factors often result in image temperatures being lower than actual surface temperatures.

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