Located in Southeast Alaska, the home to about 73,000 people, or 10% of the state's population, Mt. Edgecumbe (976 m, L'úx Shaa in Lingít) is part of the Mt. Edgecumbe Volcanic Field on Kruzof Island on the west side of Sitka Sound (Figure 1). The eastern shore of Sitka Sound, about 25 km away from Mt. Edgecumbe, is home to the almost 8,500 residents of Sitka.On 11 April 2022, a Sitka resident noted that the openly available Alaska Earthquake Center (AEC) location for an M2.1 earthquake was under Mt. Edgecumbe and inquired with Alaska Volcano Observatory (AVO) contacts whether this earthquake is related to the volcano or, as previously suggested for seismicity in the region, purely tectonic. As this dormant volcano is not monitored with a dedicated geophysical instrument network, the review of seismicity relies on the broadly distributed regional seismic network, and the related location uncertainties. Activity recorded by the closest seismograph SIT, 25 km away in Sitka, indicated that a seismic swarm started about 02:00 a.m. AKDT on 11 April 2022. Earthquakes located by the AEC range in magnitude from 1.0 to 2.7 and appear broadly distributed to the northeast of Mt. Edgecumbe near the eastern rim of Crater Ridge (Figure 1, red circles in inset). This swarm, with estimated depths ranging from about 1 to 12 km, was preceded by a burst of located seismic activity in 2020 that began with an M3.0 earthquake on 2020-01-02 and lasted until about

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