Most earthquakes and volcanic eruptions do not strike randomly but occur in specific areas, such as along plate boundaries. One such area is the circum-Pacific Ring of Fire, where the Pacific Plate meets many surrounding plates.The Ring of Fire is the most seismically and volcanically active zone in the world.n 1991, two volcanoes on the western edge of the Philippine Plate produced major eruptions. On June 15, Mount Pinatubo spewed ash 40 km into the air and produced huge ash flows (also called pyroclastic flows) and mudflows that devastated a large area around the volcano.
Drug interactions may be a possible cause of Arm swelling. 1  Nifedipine and quinidine interaction. 2  Adalat and quinidine interaction. 3  Adalat CC and quinidine interaction.  Nifedical XL and quinidine 1  interaction. Nifeditab CR and quinidine interaction.
There are likely to be other possible causes, so ask your doctor about your symptoms. Hand injury. Carpal tunnel syndrome. Hypothyroidism. Axillary vein thrombosis. Hand swelling as part of general swelling: Lymphedema. Pregnancy - causes general swelling including the hands.