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.
Numerous medical conditions might cause knuckle swelling, including arthritis, gout, heart or kidney disease and infection. Blunt force trauma, of any kind, to the hand may also produce pain and swelling. Fluid retention caused by various medications may appear as joint or knuckle swelling, and individuals having an adverse reaction to antibiotics may also develop aching joints or swollen knuckles.