41. Six Quaternary volcanoes form this long volcanic arc . 42. Extensional faulting due to relative motion between the accretionary prism and the volcanic arc may occur. 43. The magma came from a volcanic arc . 44. Oceanic trenches are a distinctive morphological feature of volcanic island arc, and about from a volcanic arc . 45. The active front of a volcanic arc is the belt where volcanism develops at a given time. 46. A volcanic arc lies in the Carpathians. 47. Since Central America is a major subduction zone, Nicaragua hosts most of the Central American Volcanic Arc . 48. Between this wedge and the associated volcanic arc is a zone of depression in the sea floor. 49. A volcanic arc is formed on the continental plate, above the location of the downgoing oceanic slab. 50. Ryukyu Volcanic Arc during the Pleistocene.
