Fig. 7

Waveform examples (ground motion velocity, vertical component) and their corresponding spectrogram, a) tectonic event, record since 2018-01-31T22:48:27.00 UTC at DEP12, b) multi-rupturing tectonic event, record since 2018-01-06T23:09:21.50 UTC at DEP12, c) volcano-tectonic event, record since 2018-02-18T02:01:46.00 UTC at LAGB, and d) low-frequency (LF) event, record since 2017-10-16T22:02:34.00 UTC at DEP12. All events occurred inside the seismic target region between 1 Oct. 2017 and 28 Feb. 2018