• Mount Agung, Less of a Threat

    Experts Say Any Eruption of Mount Agung will Be Less Dramatic than 1963 Explosion

    (11/15/2017)

    The head of the Volcanic Disaster Mitigation Agency for Eastern Indonesia (PVMBG), Devy Kamil Syahbana, says the Mount Agung level of volcanic activity continues to decrease since the alert warning was reduced from its highest level to “Siaga” on Saturday, October 29, 2017.

    As reported by RadarBali.com, a 5.0 Richter scale earthquake that struck offshore 10-kilometers from Mount Agung’s peak on Thursday, November 9, 2017, caused a momentary increase in seismic activity. “The tectonic earthquake was certainly connected with Mount Agung because it happened in the foothills of the volcano,” said Devy.

    He added that Mount Agung was still expanding its proportions and would continue to do so until it manages to “deflate.”

    There has, however, been some deflation in the Mountain, followed by new periods of re-inflation of the volcano’s dimensions. Devy says if this cycle continues the crater of Mount Agung will become more pliable allowing the pressure inside the mountain to escape.

    Earth tremors at Mount Agung are now averaging about 60 events per day – a level still considered high for a volcano.

    By comparison, Mount Sinabung in Sumatra that is now in an active state of eruption experiences around 10 to 20 tremors per day.

    Devy explained that prior to the recent increase in volcanic activity at Mount Agung, the mountain would experience an average of between zero and three tremors per year.

    “The tremors give evidence of the presence of magma within the mountain,” he added.

    Based on current expert projections derived from the profile of earth tremors, any eruption of Mount Agung will be less significant than the 1963 eruption.

    In 1963, the three earthquakes measured at Mount Agung reached 6.0 Richter scale, while the most recent earthquake on November 9th measured only 5.0.

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    Mount Agung Danger Zone Shrinks

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