YELLOWSTONE volcano scientists, alongside the help of the European Space Agency , found the caldera had fluctuated in height by up to 120 millimetres, unearthed reports reveal.
Yellowstone volcano: How seven-year USGS study showed 'abnormal' change
YELLOWSTONE volcano scientists, alongside the help of the European Space Agency , found the caldera had fluctuated in height by up to 120 millimetres, unearthed reports reveal.
