URZ - matahivalley - small correction  (#1130)
URZ - matahivalley - small correction  (#1130)

* orientation update from rayleigh-wave polarisation analysis

* small edit

* 216

Co-authored-by: Conrad Burton <c0c25024be9c20e0d5473f87a9f9feb70f70b301@localhost.localdomain>
Co-authored-by: Sam Taylor-Offord <c558c4fb4fed3250a4971db0453820db29e75b57@gns.cri.nz>
GeoNet/delta,GeoNet/delta