Aden.. Geological Survey explains impact of volcanic ash on Yemen
Yemen
Yamanat
The Aden Geological and Mineral Resources Authority announced that data from satellite monitoring systems indicate the continued expansion of the volcanic cloud emanating from the Hayli Gubbi volcano located in the Afar region of northeastern Ethiopia.
The authority said in a statement that images taken Monday morning show the movement of the mass of ash and sulfur dioxide through several atmospheric layers, with heights reaching around 5 kilometers above sea level, with clouds extending to higher levels of between 10 and 18 kilometers, reflecting the nature of high volcanic eruptions.
She explained that satellite data indicate that the cloud gradually fades towards the west and northwest, with a notable decrease in particle density the further away from the center of the eruption, confirming that there is no direct impact on air quality in Yemen during the current hours.
The authority added that the eruption of this volcano is a rare geological event, as records indicate that it has not erupted since the beginning of the Holocene, more than ten thousand years ago, making it the focus of volcanic science researchers.
The authority confirmed its continued coordination with regional and international bodies to monitor volcanic developments and inform the relevant authorities of any developments, stressing that there are no indicators of concern and that the measures taken are within the framework of usual scientific monitoring.
Text of the declaration
The Geological Survey and Mineral Resources Authority reports that results of analyzes derived from satellite monitoring systems, particularly data from the Global Volcanic Ash Tracking Systems Project, indicate the continued expansion of the volcanic cloud emanating from the Hayli Gubbi volcano in the Afar region of northeastern Ethiopia.
Recent images taken this morning, November 24, 2025, show the mass of ash and sulfur dioxide moving through several atmospheric levels, with altitudes of around 5 kilometers above sea level recorded, while most readings show the extension of the volcanic cloud towards higher layers between 10 and 18 kilometers in the atmosphere, consistent with the behavior of volcanoes with high altitude eruptions.
Satellite data also shows that the volcanic cloud is gradually fading towards the west and northwest, with the density of fine particles decreasing the further away from the center of the eruption, with no indication of a direct impact on air quality in Yemen during the current hours, with continued monitoring as a normal precautionary measure.
The eruption of the Hayli Gubbi volcano is a rare geological event. Scientific records indicate that there has not been an eruption before since the beginning of the Holocene, more than ten thousand years ago, making it of great interest to specialists and researchers in volcanology and plate tectonics.
The Commission confirms that it continues to coordinate with regional and international centers to regularly monitor volcanic emissions and assess their evolution, and to inform the competent authorities of any significant developments, emphasizing at the same time that there is no reason for concern and that the monitoring is carried out according to a precise scientific methodology whose purpose is solely for monitoring and information.
Geological Survey and Mineral Resources Authority – Aden
November 24, 2025
Yemen