The Datun volcanic group in northern Taiwan includes multiple volcanic peaks: Datun Mountain, Zhuzi Mountain, and Sulfur-mouth Mountain. This is Taiwan's only volcanically active region, located near densely populated Taipei and Keelung.
The Datun volcanic group's last eruption occurred approximately 5,000-7,000 years ago. While currently relatively quiet, geothermal activity remains active. Hot springs, sulfur vents, and other geothermal phenomena are visible, particularly within Yangmingshan National Park.
Taiwan's Geological Survey and Central Weather Administration regularly monitor the volcanic group's seismic activity and geochemical changes. Since 2020, seismic activity has slightly increased, but no signs of imminent eruption exist.
Despite relatively low eruption risk, the government has developed emergency plans. Communities near Datun Mountain should understand volcanic risks and prepare emergency supplies. Volcanic ash, volcanic gases, and ground subsidence are potential hazards.