Oct98Eruption

1998 MT. KOMAGATAKE ERUPTION
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Leveling and EDM Survey

The Eruption Recordedby Seismometers

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Leveling Survey
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Leveling Route

Relative height changes referred to KO1050 versus distance from 1929crater. (period from May 1998 to Oct. 1998 including Oct. 25 eruption)

Relative height changes referred to KO1050 versus distance from 1929crater. (period from Mar. 5, 1996 eruption to Oct. 1998 eruption)

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EDM Survey
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EDM network around the large fissure in the summit and Temporalchanges in the length of baseline

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Temporal Changesin Underground Tempereture across F10
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Map showing 1929 main crater, the 1942 large fissure, the 1996 pitcrater and the 1996 fissure crater on the summit.

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The Eruption Activitiesof Mt. Komagatake for last 200 years
(for prediction of a large eruption)
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