The largest possible volcanic event at Long Valley, a catastrophic explosive eruption associated with renewed caldera collapse, is also the most difficult to forecast because of the long time interval between such eruptions and the absence of historically documented large caldera-forming eruptions anywhere in the world.
(a catastrophic explosive eruption; associated; with renewed caldera collapse) (The largest possible volcanic event at Long Valley; is also; the most difficult to forecast; because of the long time interval between such eruptions and the absence of historically documented large caldera-forming eruptions anywhere in the world)
a catastrophic explosive eruption The largest possible volcanic event at Long Valley
associated is also
with renewed caldera collapse
the most difficult to forecast because of the long time interval between such eruptions and the absence of historically documented large caldera-forming eruptions anywhere in the world