I reviewed this very interesting story (“Seismologists in a rumble over quake clusters,” SN: 5/7/11, p. 5) this morning, and it occurred to me that the connection between all of these very severe earthquakes might possibly be the change in weight distribution throughout the planet, resulting from temperature increases due to climate change with the melting of the glaciers: decreased weight where the glaciers were and increased weight of water on the ocean floors. Also, it seems as though the majority of them are clearly distributed around the rim of the Pacific Ocean (the “Ring of Fire”).
James R. Stewart Jr., Londonderry, N.H.
Researchers have linked melting glaciers and ice sheets to increased earthquake activity in places such as Greenland, Alaska and the Canadian Arctic. Removing o