Mid-infrared satellite image of Mount Veniaminof, southwest Alaska, on August 19, 2019. The image shows slightly elevated surface temperatures (about 10 degrees Celsius above background) at the intracaldera cone associated with cooling lava flows that were emplaced in September–December 2018. Slightly elevated surface temperatures were detected at the intracaldera cone throughout 2019 when viewing conditions were cloud-free. Image acquired by a Visible Infrared Imaging Radiometer Suite instrument on the Suomi-NPP satellite.
Volcano(es): Veniaminof
Photographer: Orr, Tim
URL: avo.alaska.edu/image/view/195268
Veniaminof 2019 activity
From Orr and others, 2023: "On August 1, 2019, AVO received a PIREP of steaming at Mount Veniaminof’s intracaldera cone, which coincided with a weak tremor signal. These observations marked a small but distinct departure from the background level of unrest at the volcano, and as a result, AVO raised the Aviation Color Code and Volcano Alert Level to YELLOW and ADVISORY. Weak seismicity and occasional long-period earthquakes continued intermittently throughout most of August, but by the end of the month, the volcano returned to its background activity level. AVO subsequently lowered the Aviation Color Code and Volcano Alert Level to GREEN and NORMAL on August 25, 2019. No additional unrest took place at Mount Veniaminof for the remainder of 2019."
Use Restriction: Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
Full Resolution.