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Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 3 | Geoscience Letters

Fig. 3

From: Sensor orientation of the TMD seismic network (Thailand) from P-wave particle motions

Fig. 3

Orientation and quality control for a CRMM (2018–2022) borehole seismic station shows that the orientation of the seismometer component (HHN) is rotated 140.3º ± 2.9° clockwise from true north with differences from the initial TMD (metadata) orientation of 114° clockwise. At CRMM, 535 events (+ blue) were analyzed and 274 events (+ orange) passed quality control; and b the KAMP borehole seismic station shows a temporal change in sensor orientation. Of the 548 events analyzed (+ blue) 420 events (+ orange) passed quality control. During the 2018–2022 period two orientations were found for these data at ~ 237° and ~ 126°

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