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At the end of November 2004, there were 844 lifestyle and dating sites, a 38% increase since the start of the year, according to Hitwise Inc.
During this interlude the seismic signals and inflation continued and increased until the mountain finally erupted by ejecting fine grained tephra and prodigious amounts of sulphurous gases.
By measuring the amount of radioactive decay of a radioactive isotope with a known half-life, geologists can establish the absolute age of the parent material.