Volcano Watch — Separating signals: What matters to seismologists?

Whether they originate above or below the Earth’s surface, a wide array of signals appear on the USGS Hawaiian Volcano Observatory’s earthquake-detecting (seismic) data streams. Part of a seismic analyst’s duty is identifying normal versus irregular seismic activity. 

Whether they originate above or below the Earth’s surface, a wide array of signals appear on the USGS Hawaiian Volcano Observatory’s earthquake-detecting (seismic) data streams. Part of a seismic analyst’s duty is identifying normal versus irregular seismic activity.  Read More