AVO Shishaldin YELLOW/ADVISORY – Elevated surface temperatures in the summit crater; no eruptive activity observed.

Jul 23, 2019 18:46 – Elevated surface temperatures were observed in multiple satellite images over the past 24 hours accompanied by periods of weak seismic tremor. No eruptive activity was detected in infrasound data or in clear web camera views of the volcano.

Shishaldin is monitored by local seismic and infrasound sensors, satellite data, a web camera, a telemetered geodetic network, and distant infrasound and lightning networks.