Journal ArticleEpisodic Magma Hammers for the 15 January 2022 Cataclysmic Eruption of Hunga Tonga‐Hunga Ha'apaiZheng, Yingcai; Hu, Hao; Spera, Frank J.; Scruggs, Melissa; Thompson, Glenn; Jin, Yuesu; Lapen, Tom; McNutt, Stephen R.; Mandli, Kyle; Peng, Zhigang; Yuen, Dave A.Key Points The 15 January 2022 Hunga Tonga‐Hunga Ha'apai eruption had four episodic seismic subevents with similar waveforms within ∼300 s An unusual upward force jump‐started each subevent A magma hammer explains the force and estimates the subsurface magma mass flux which fits the vent discharge rate based on satellite data2023-04-2810454155Geophysical Research Letters5080094-8276https://doi.org/10.1029/2023GL1027632027150National Science Foundation