September 3:
We traveled overnight and through the morning, south along the coast of Hokkaido for about 200 nautical miles. We spent the afternoon in Muroran, on the southeastern end of Hokkaido. Muroran is a heavily industrialized city, home to Nippon Steel and Japan Steelworks as well as oil refining and ship building. Its natural harbor hosts one of the largest ports in Hokkaido. Muroran also has the longest suspension bridge in eastern Japan, with a length of 4500 feet and a center span measuring almost a mile. We were welcomed by the mayor himself, recently returned from a visit to their sister city of Knoxville, TN. It is amazing that our 130 passenger ship receives this kind of attention.
We traveled north from the city to explore the area around Mt. Usu in the Shikoku-Toya National Park. Mt. Usu rises 2420 feet above Lake Toya, itself in a caldera. Mt Usu first erupted 20,000 years ago and the main peak has collapsed and eroded, but the Usu system has continued to erupt and create new cones. The 1943-5 eruption created Showa Shinzen, a new mountain that includes a lava dome that filled in its caldera, all created in just two years. It is still steaming.
The most recent eruptions of Mt. Usu were in 1977 and 2000. We traveled by tram up to an overlook above the still smoking caldera of the 1977 eruption. While we were grateful that the predicted rain held off, we did have fog roll in as we went up the mountain, which was a little disappointing.
Later we traveled to a nearby town and surveyed the damage from the 2000 eruption and a massive mudslide in 2001. The local community begins evacuation as soon as there is a “warning earthquake” and there were no casualties from the 2000 episode despite the visible damage. It is humbling to consider what it’s like to live under such a threat, especially as Mt Usu has tended to erupt every 30 years and it has now been 26…
Pictured: lighthouse and cliffs entering Muroran harbor, Showa Shinzen, the Muroran bridge at night, the 1977 caldera, snail on a tree at Mt Uzu, Chestnut-cheeked starling













































