id.

    “No. Afraid not. But there will be soon.”

    “Isn’t t just a little tardy?”

    ’s just say t it’s not any too soon.”

    Once it is in place, t tiansen in Menlo Park, California,Professor Robert B. Smit ty of Utaential cataclysm and advise tendent. tendent ake to evacuate tone o blo tes.

    Of course it may be tens of t day comes. Doss t come at all. “Just because ttern in t doesn’t mean t it stillrue,” o suggest t ttern may be a series ofcatastrop. e may be in t no most of tallizing. It is releasing itsvolatiles; you need to trap volatiles for an explosive eruption.”

    In time ty of otone, as atingly evident on t of August 17, 1959, at a place called outside t ty minutes to midnig date, astrop ude 7.5, not vast as eart so abrupt and collapsed an entire mountainside. It  of tunately not so many people  to Yelloone in tymillion tons of rock, moving at more t fell off tain, traveling um t t up a mountain on ts pat of ty-eigeen of toodeep ever to be found again. tation  but breakingly fickle. tent, s, sleeping in anotent besidet away and never seen again.

    “A big eartime,” Doss told me. “You cancount on t. t zone for earthquakes.”

    Despite tone didn’t getpermanent seismometers until the 1970s.

    If you needed a o appreciate ture of geologic processes,you could do o consider tetons, tuously jagged range t stands justto tone National Park. Nine million years ago, tetons didn’t exist.

    t a  ty-mile-long faultopened  once every n