In the monthly seismicity reports for Yellowstone, it is common to read the statement, “earthquake activity in Yellowstone remains at background levels.” In fact, in the United States Geological Survey monthly activity reports, there is an alert level assigned to each volcano, Yellowstone included. The “normal” alert level is associated with a “non-erupting volcano that […] The post What is ‘normal’ earthquake activity in Yellowstone National Park? appeared first on Idaho Capital Sun.
Understanding how stable isotopes are used for tracking water is the story of USGS scientist Irving Friedman (1920–2005), a scientist considered by many to be the “father of isotope hydrology” because of his numerous innovative breakthroughs.
If you want to measure a climate trend, one thing you certainly have to account for is the seasons. It would be unwise to take one measurement in July, a second measurement in December, and declare that we are descending into an ice age. The same is true for measuring ground deformation. There is seasonal movement you have to consider, including in Yellowstone National Park.