Correction to: Earth Planets Space (2021) 73: 117 https://doi.org/10.1186/s40623-021-01445-w

After publication of this article (Sato 2021), it is noticed the article contained some errors:

  1. (1)

    The levels of headings are incorrect. The correct levels of headings are provided below.

    First level headings:

    • Introduction

    • Kusatsu‑Shirane volcano

    • Phreatic eruption on January 23, 2018

    • Methodology

    • Results

    • Discussion

    • Summary and conclusion

    Second level headings:

    • Modified probabilistic estimation method

    • Erupted mass estimation methods

  2. (2)

    The author’s affiliation should be updated to:

    Meteorological Research Institute, 1-1 Nagamine, Tsukuba, Ibaraki 305-0052, Japan

The original article has been updated.