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.
The median nerve, which runs through the arm and hand, can cause swelling pain and numbness if injured. Damage to the ulnar nerve causes swelling, pain and numbness in the forearm, hand, and ring and little fingers. Hypoparathyroidism is a rare condition that can cause muscle twitches, seizures, cramps, tingling, and more. Dupuytren's contracture is a condition of the hand tissue that causes the fingers to curl. Diabetic neuropathy is a nerve condition of the extremities causing numbness, tingling, and pain. Scleroderma is an uncommon immune disorder that causes collagen to build up in the tissue, making it harden. Tetany is a mineral imbalance causing painful muscle cramps and twitches in the hands, feet, face, and larynx.