Redwood "The northern coastal region of California, which includes RNSP and the adjacent offshore area, is the most seismically active in the U.S. Frequent minor earthquakes in the park and offshore under the Pacific Ocean have resulted in shifting river channels, landslides, and erosion of seaside cliffs." - wiki
Shiretoko From Shiretoko Cape at the tip of the peninsula, a series of volcanoes run down the peninsula, including Mount Shiretoko, Mount Unabetsu, and Mount Iô. (wiki)
Ujung Kulon National Park "The second unique attraction in Ujung Kulon is the Krakatau volcano. This is one of many hundreds of volcanoes in the Pacific "ring of fire" that extends virtually around the Pacific ocean"(AB ev)