Seismic Triage — WiMac Lab (demo)

M 5.8 — 18 km west of Kaiwaka, 12 km deep 09:42 NZST · GeoNet ref 2026p512345 · ShakeMap: latest published run Response triggered — triage

Magnitude

M 5.8

GeoNet, latest published run

Max PGA on assets

0.32 g

Kaiwaka Bridge

Assets ≥ P2

2 × P1 inspect now · 4 × P2 today

Ground saturation

wet

antecedent 68 mm — slip-prone response routes flagged

Expected PGA ≥ 0.20 g — P1 inspect now 0.10–0.20 g — P2 today < 0.10 g — P3 routine

Critical assets by expected PGA

GeoNet ShakeMap · 09:42 NZST

Asset

PGA (g)

Priority

Triage rules — client-set

Trigger levels are configurable per council. Shaking is taken from the latest published ShakeMap run — as soon as it exists, not after review — and re-ranked when GeoNet revises it. Wet antecedent conditions add a slip caution to response routes: today the ground is wet (68 mm), so P1 access via Pouto Rd carries a slip flag.

when live, the full ranked list is emailed to the duty roading manager automatically (module M10)

Triage screening, not structural assessment. Expected PGA ranks where to inspect first; it does not assess capacity or damage. Built national by design — any GeoNet event, bridges and roads from LINZ or council data, Kaipara as a configuration (module M9). GeoNet shaking layers are used under CC BY; values shown here are a worked example, not a real event.