Example waveforms of HVO seismic data

Figure caption: Example waveforms showing a T-phase arriving from the M7.4 Chile earthquake on July 19, 2024 (left).  This T-phase event is compared to a local tremor burst deep beneath Pāhala on July 30, 2024 (right).  The plots show time for several stations in the HVO network.  The T-phase moves more slowly across the network which is represented by systematic delays in the time from the top to the bottom of the left plots on the figure.  The plots on the right side of the figure shows the waveforms coming in at about the same time on several stations; this occurs because the Pāhala event is deeper beneath the volcano.