 On 28 February 1996 the northern segment of the Gorda Ridge (42 40'N 126 48'W) experienced a burst of seismic activity, which lasted roughly three weeks.Concurrent with seismicity were a series of slow volcanic eruptions (1–10 m3/sec), forming thick flows of pillow basalt.These pillow basalts are thickest to the north, indicating this region's activity lasted longer than the other portions of the ridge.