Continuously Monitored Active Volcanoes Around the World

The term 'active volcano' does not refer only to those currently erupting with flowing lava. The quiescent period between major eruptions can last much longer than human records, and volcanoes classified as continuously erupting do not exhibit the same level of activity every day. This list selects volcanoes repeatedly covered in weekly reports and by various observation networks around the world, explaining why monitoring is necessary and outlining the representative risks.

Different volcanoes have varying warning systems and monitoring levels, so rankings based solely on activity counts or plume heights are not made. The coordinates provided correspond to representative summit or crater locations for reference on maps and do not indicate access routes, viewpoints, or evacuation shelters. Before visiting or traveling nearby, it is essential to check the latest warnings, prohibited areas, and aviation information from local observation agencies and disaster authorities, and to follow their regulations. It is also important to consider that the density of monitoring equipment and the amount of information available can vary from volcano to volcano.

Comparing ten volcanoes reveals that monitoring active volcanoes involves tracking not just lava flows but also lava dome collapses, ash, gas emissions, lahars, and aviation hazards. Volcanoes near urban areas and those in polar regions may exhibit similar activities, but the exposed populations and monitoring purposes differ. The absence of a name in weekly reports does not necessarily indicate that activity has ceased, so it’s crucial to also look at the data from the primary observation institutions in the respective countries.

It is important to verify the observation date, agency, alert level, and extent of control rather than just the activity status highlighted in the article title. The numbering of alerts varies between countries, making direct comparisons impossible, and although a volcano may appear quiet, observations can be limited due to clouds and equipment malfunctions. Let’s not consume volcanoes merely as tourist attractions or objects of fear, but also consider how the evacuation and livelihoods of nearby residents coexist with long-term monitoring. Understanding how the daily lives of residents, tourism, and agriculture coexist with volcano risk management is also a vital observation point.