Category Archives: Popocatepetl

Ruiz Rattles, St. Helens Twitches, Cleveland Oozes…


I had thought that Columbia’s volcanoes were not yet done, and it would seem that they are not. Yesterday and this morning there has been strong seismic activity beneath the Ruiz-Tolima massif showing up on the seismographs for Ruiz, Machin, … Continue reading

Posted in Columbia, Indonesia, Nevado del Ruiz, Popocatepetl, Tambora, Uncategorized, Volcanology, Yellowstone | Leave a comment

Volcanic Awakenings


Our planet’s lithosphere is never quiet for very long, and there’s nearly always something going on with earth’s top layer. Today is no exception, and while Alaska’s Cleveland volcano has calmed down some, having been downgraded to yellow alert status … Continue reading

Posted in Popocatepetl, Tambora, Volcanology | Leave a comment