ISTerre seminar

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Activity and focal mechanism of deep low-frequency earthquakes beneath Mt. Fuji revealed through waveform classification

Friday 20 June 2025 - 14h30

Takuma Ikegaya - Mount Fuji Research Institute
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Deep low-frequency earthquakes (DLFs) are the earliest precursors of volcanic eruptions, and their monitoring is crucial for early disaster preparedness. However, in many cases, the relationship between DLF activity and eruptions or volcanic unrest remains unclear, limiting their application in hazard mitigation. In this study, we classified DLFs beneath Mt. Fuji using waveform correlation and examined the activity and focal mechanisms of each group. This approach enabled a more detailed understanding of their spatio-temporal characteristics and source mechanisms, and revealed previously unrecognized relationships with other volcanic phenomena. I will present these findings and discuss their implications.

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Organizing team : Ondes et structures

Amphithéâtre Killian, Maison des Géosciences, 38400 Saint Martin d'Hères

Informations de visio :

https://univ-grenoble-alpes-fr.zoom.us/j/95496607088?pwd=UuSVyVX0SCxaFwJ8BOzQujEfEjydwi.1