21. Some of the vents are 18 stories tall, dwarfing the volcanically heated vents seen elsewhere. 22. The epicenter, at the junction of three tectonic plates, is very active seismically and volcanically . 23. The area remains volcanically active today, with Paoha Island forming from volcanic activity 350 years ago. 24. The island of Savai'i consists of a massive shield volcano and is still volcanically active. 25. As a volcanically active country, Japan has thousands of onsens scattered throughout all of its major islands. 26. "' Humite "'is a mineral found in the volcanically ejected masses of Vesuvius. 27. Near Cody, it runs through a volcanically active region of fumaroles known as Colter's Hell. 28. These resorts offer guests baths in volcanically -heated waters, massages, beauty treatments and other services. 29. The JD-03 pipe formed by an explosive eruption when this part of Nunavut was volcanically active. 30. Although Io is the most volcanically active body known in the solar system, its volcanoes are typically squat.