Local ground-based geophysical observation data (Borehole tilt, broadband seismic, and infradound) accomanying the 2018 phreatic eruption at Kusatsu-Shirane volcano (Motoshirane)

A geophysical observation dataset (borehole tilt, broadband seismic, and infrasound) accompanying the 2018 phreatic eruption at the Motoshirane cone of the Kusatsu-Shirane volcano. The data is from the local geophysical observation network operated by Kusatsu-Shirane Volcano Observatory, Tokyo Institute of Technology. All time is JST (UTC+9). Terada et al. (2021) and Yamada et al. (2021) describe station locations and instrumentations.

Tilt (text files: 20190123_stn_1_Hz.txt)

format:  yy/mm/dd hour:min   sec   NS tilt   EW tilt

Broadband seismic and infrasound waveforms (sac files)

(1801230950_stn_cmp.s)

*stn: station name

*cmp: component

References

Terada, A., Kanda, W., Ogawa, Y., Yamada, T., Yamamoto, M., Ohkura, T., et al. (2021). The 2018 phreatic eruption at Mt . Motoshirane of Kusatsu – Shirane volcano, Japan: Eruption and intrusion of hydrothermal fluid observed by a borehole tiltmeter network. Earth, Planets and Space, 73. https://doi.org/10.1186/s40623-021-01475-4

Yamada, T., Kurokawa, A. K., Terada, A., Kanda, W., Ueda, H., Aoyama, H., et al. (2021). Locating hydrothermal fluid injection of the 2018 phreatic eruption at Kusatsu-Shirane volcano with volcanic tremor amplitude. Earth, Planets and Space, 73(1), 1–15. https://doi.org/10.1186/s40623-020-01349-1