Signs of an Imminent Volcanic Eruption to Watch For?

Signs in the Environment

Changes in the environment can provide early warnings of an impending volcanic eruption. Pay attention to increased seismic activity, with more frequent and intense earthquakes, and ground deformation such as inflation or deflation of the volcano. These changes can indicate magma movement or gas accumulation. Take note of rising steam or hot gas emissions, which can signal increased volcanic activity. Additionally, changes in water levels or temperature in nearby lakes or oceans, and altered river flow or chemistry, can signal the presence of magma or increased volcanic gases.

Personal Health and Safety Precautions

Protect yourself and your family by taking precautions to prevent respiratory problems and other health issues. Wear a mask rated for volcanic ash and gas protection when outdoors, and stay indoors with windows and doors closed when ash fall is heavy. Keep gas masks and respirators on hand, and know how to properly use them. Monitor local news and emergency alerts for evacuation instructions and follow them promptly if ordered. Stay informed about the volcano’s history, current activity, and potential hazards such as lahars, which are mudflows or landslides triggered by heavy rainfall or snowmelt.

Evacuation Planning and Preparation

Develop a family emergency plan that includes evacuation routes and procedures, and practice it regularly. Identify safe zones away from the volcano, such as higher elevations or areas with fewer ash fall hazards. Keep essential supplies, such as food, water, first aid kits, and gas masks, in a designated emergency kit. Stay informed about the volcano’s activity and any evacuation orders, and be prepared to leave quickly if necessary. Consider keeping a portable radio and a two-way communication device, such as a satellite phone, to stay in touch with family members and receive important updates.