AVO Cleveland ORANGE/WATCH - Minor steaming observed. No activity detected in seismic or infrasound data.
Sep 11, 2017 20:15 - Low-level unrest continues at Cleveland Volcano. Minor steaming was observed in 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.