Spectrogram and Volcano Detection Discriminant Comparisons Between Explosive Submarine Volcanic Eruptions and Nearby Earthquakes

Figures Z1–Z12 present comparisons of spectrogram characteristics and volcano detection discriminants between verified explosive submarine volcanic eruptions and nearby earthquakes by Zhu and Wen. The figures cover 13 submarine volcanic regions in the Western Pacific Ocean, including Kaitoku Seamount, Kita-Ioto, Daikoku, Ahyi, Agrigan, South Sarigan, NW Rota-1, West Mata, Ioto, the Mariana Back-Arc Segment at 18.2°N, 17.0°N, and 15.5°N, and the Kyushu–Palau Ridge at 16.3°N. These figures provide supporting evidence for distinguishing explosive submarine volcanic eruptions from nearby earthquakes using spectral and waveform-based discriminants. The original hydroacoustic data used in this study are available by the CTBTO International Data Centre, Vienna, through the virtual Data Exploitation Centre (vDEC) (https://www.ctbto.org/specials/vdec/). Earthquake catalogue data are available from the International Seismological Centre (ISC) (https://www.isc.ac.uk).