On June 7, Japan’s Sakurajima volcano in Kagoshima City erupted, sending an ash column soaring to 1,300 meters. Driven by heavy winds and rain, the fallout spread across the downtown area, coating roads, vehicles, and building exteriors in a thick layer of grit and turning the streets into a muddy mess.
When a volcano goes off on this scale, it pumps tons of aerosols straight into the stratosphere. Gases like sulfur dioxide mix with moisture to create acid rain, which can eat away at structures, sour the soil, and trigger respiratory issues for people nearby. On top of that, airborne ash can get sucked into jet engines, forcing flights to ground and causing widespread travel disruptions time and again.
In response, local authorities in Kagoshima have put out a clear heads-up for everyone: if you have to step outside, make sure you’re wearing a proper mask and safety goggles to protect yourself from the fallout.
For context, Japan sits right at the crossroads of the Pacific, Philippine Sea, and Eurasian tectonic plates. It’s home to over 270 volcanoes across the archipelago, with 111 officially classified as active.
Sakurajima happens to be one of the most restless peaks in the country. Since it’s sitting just about 4 kilometers from Kagoshima’s bustling downtown core of 600,000 residents, dealing with its occasional blowouts has basically become part of daily life for locals.
The Japan Meteorological Agency keeps a constant eye on Sakurajima. If pyroclastic flows push past the 2-kilometer mark, they’ll bump the alert level to a 4 or 5, which naturally throws a wrench in everyday routines for those living close by. Japan’s volcanic alert system tops out at level 5, and hitting that mark means an immediate evacuation order.
Just a couple of months back on April 11, the volcano erupted for the second time in four months. Officials and local news outlets reported that it hurled a massive column of ash several kilometers high into the atmosphere.
More recently, on May 13, the meteorological agency flagged a rise in volcanic earthquakes near Mount Usuzan in eastern Hokkaido. If seismic activity picks up, they’re prepared to raise the alert from level 2 to 3 and likely restrict hiking access to keep the public safe.
