AVO uses several different types of data to monitor volcanoes for signs of unrest or eruptive activity. The data displayed here have not been reviewed in any way, and are preliminary unless reviewed by an AVO geoscientist.
SSLS_BHX, SSLS - Last 24 hours, 10 minute average. SSBA_BHX, SSBA_BHX, SSBA - Last 24 hours, 5 minute average. ISNN_SHZ, ISNN - Last 24 hours, 5 minute average. DTN_BHX, DTN - Last 24 hours, 5 minute average. Regional station used to compare with local stations to diagnose local volcanic activity