The Northern Mariana Islands Volcano Observatory published that no unrest or activity has been observed at the volcano in satellite data since September 6.
Satellite images showed emissions of water vapor, gases and small amounts of ash during the 1-6 Sep. An occasionally steaming continues to be observed in satellite data.
Therefore, the Aviation Color Code and Volcano Alert Level lowered to Green.
Source: Northern Mariana Islands Volcano Observatory volcano activity update 27 September 2021
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