23 Mar 2023 | 02:10 PM UTC
Japan: Officials increase warning level at Mount Asama volcano in Gunma and Nagano prefectures March 23
Officials increase warning level at Mount Asama volcano, Japan, March 23. Exclusion zone in place; eruptions possible.
Event
Officials have raised the warning level for Mount Asama volcano, located on the border of Gunma and Nagano prefectures, from Level 1 to Level 2 (out of five) on March 23 due to increased activity. Officials with the Japan Meteorological Agency (JMA) have observed an expansion of the volcanic edifice and an increase in seismic activity at Asama, indicating the possibility of a small eruption occurring in the near future. A 2 km (1.2 miles) exclusion zone has been established around the crater. Residents in surrounding towns and villages have been warned of the dangers of climbing towards the crater due to the potential danger of volcanic blocks and pyroclastic flows in the event of an eruption occurring. Despite the increased volcanic activity, authorities have not issued any mandatory evacuations for the surrounding area. Eruptions could cause low-level seismic activity, ash clouds, and landslides in the surrounding area.
Plan for possible transport disruptions in the surrounding area, especially if a significant eruptive event occurs. Road conditions could quickly deteriorate during periods of significant ashfall, and visibility could be reduced. Officials might close roads near the volcano depending on the presence of hazardous volcanic material. Fine particulate matter ejected from the volcano could pose a hazard to flights in the surrounding airspace; authorities might temporarily suspend operations at airports in the region if significant ashfall accumulations occur.
Advice
Heed the advice of local authorities and obey restrictions around the volcano. If larger eruptions occur, confirm flight schedules. Drive cautiously, as roads may be slippery from volcanic ash. If operating in areas affected by an ash cloud, consider remaining indoors when possible. Individuals who must be outdoors should use face masks and observe other precautions to avoid ash inhalation. Volcanic ash and gases can cause eye irritation and respiratory problems. Do not rub irritated eyes; flush them with water. Seek medical attention if you have trouble breathing.
