AVO Cleveland ORANGE/WATCH - No activity observed in monitoring data.
Sep 13, 2017 21:01 - Low-level unrest continues at Cleveland Volcano. No activity was observed in mostly cloudy satellite images and web camera views over the past day. No activity was detected in seismic or infrasound data. Cleveland volcano is monitored with a limited real-time seismic network, which inhibits AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning, and satellite data.