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Pyroclastic flow travelling down the Krasak ravine; at the beginning, it is
preceded by a glowing rock-fall. |
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The billowing ash clouds at the front of the flow. |
Ash cloud rising above the pyroclastic flow. |
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Shortly after the earthquake (the same one that hit Yogyakarta), a number of
larger pyroclastic flows are triggered from the lava dome. Not aware of the
destructive nature of the earthquake (we thought it was a local event under
the volcano), excitement at the extraordinary sight mix with panic as we are
vividly reminded the mountain itself might be unstable and that a much
larger flow might be waiting - as it in fact had, but fortunately not for
us... |
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Ash is whirled up when parts of the lava dome disintegrate to produce yet
another flow. |
Fortunately, only small flows and rock-falls occur towards our side (a week
later, a ridge made of a part of an older dome, which until then had
prevented most flows from entering this direction, collapsed) |
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The thin, rapidly advancing tongues of pyroclastic flows, made of turbulent
ash clouds mixed with glowing debris. |