6:15 PM - 7:30 PM
[SVC45-P24] The rainfall correction of E-W component of the tiltmeter at Mt. Ontake Tanohara (1)
Keywords:tiltmeter, Mt. Ontake, rainfall correction
We tried the rainfall correction of E-W component of the tiltmeter at Mt. Ontake Tanohara, and I was able to get the good result during the period when rainfall is liquid (from June to October). As a result, We were able to confirm a change of the mountain rise from about September 10, 2014 in the same timing that earthquakes increased under the summit of Mt. Ontake. However, the change of such the tiltmeter was confirmed several times in the past. This change of the tiltmeter is thought to be a noise or a signal, a judgement is divided by each person.