Here are a bunch of links for you. I do sincerely hope you take the time to investigate them. You can find plenty more info about thermal acitivity (geo or hydro, it doesn't matter) in any of these places on the web because there's plenty to observe.

Iceland is one of the most active volcanic countries in the world.

Volcanoes of Perú

Tibetan Plateau
Most pingos in the permafrost region of the high northern Tibetan Plateau form along active fault zones and many change position annually along the zones and thus appear to migrate. The fault zones conduct geothermal heat, which thins permafrost, and control cool to hot springs in the region.

Detection of Widespread Fluids in the Tibetan Crust by Magnetotelluric Studies


Will Global Warming Unleash More Seismic Activity?
As reported only this year, Harvard seismologist Göran Ekström has found a striking increase in the frequency of glacial quakes, particularly in Greenland, but also in Alaska and Antarctica.

Greenland quakes have risen from 6 to 15 a year between 1993 and 2002, to 30 in 2003, 23 in 2004 and 32 in the first 10 months of 2005, closely matching the rise in Greenland's temperatures over the same period. Their source was traced to surges and slips within ice sheets, where rapid melting is causing water to collect under glaciers, making them glide faster into the sea, triggering quakes.

Similarly, retreating glaciers in southern Alaska are likely to open the way for future earthquake activity.

Already, as the ice melts, we are seeing evidence of new volcanic activity in Antarctica. A new, previously unknown volcano has appeared on the sea bottom in waters off the Antarctic Peninsula, in an area with no previous record of volcanic activity. Investigations into a large area of surface slumping on the West Antarctic Ice Sheet revealed a huge accumulation of water underneath that has now been shown to be due to an active volcano erupting under the sheet...


I have actually been reading about this stuff since I was a little kid, a subscription to national geographic was my birthday present every year since about the age of 8 and everytime a volcano blew up or new areas of thermal venting of any consequence was discovered they wrote about it. quite seriously there is plenty of it happening all the time, it's not a new phenonema. The earth is hot and liquid in the center and we live, by the grace of God, on these floating areas of crust on it's surface. A very cold atmosphere, not a cold earth, keeps ice from melting altogether in places. The earth itself is always working to melt that ice.

you might also look up what is known as 'the ring of fire' if you need a quick tutor on a larger scale of the earth's thermal activity.