Cascade Range volcanoes at normal background levels of activity this week: https://t.co/2s08QEkqp5. #CVO field crew finishes cross-section survey of #MountStHelens' Loowit & Step Creeks. Routine GPS survey measures changes in stream channels due to scour (erosion) or deposition. https://t.co/KyqyvfEhMV USGS Volcanoes🌋 Earthquake Alert on Telegram by @EarthquakeAlertTelegram A @grttme project - Other backups: @Hallotme