Geospatial polygon layer from West Coast (Te Tai o Poutini). Each feature carries the attributes listed below; geometry is provided as WKT in WGS84.
Pipeline last ran 2026-09-01 · monthly · 3 rows
Centroids only — full geometry available via the API or CSV download.
| Column | Type | Description |
|---|---|---|
| gridcode | double | Gridcode |
| object_id_1 | long | Object ID 1 |
| object_id | double | Internal feature ID (ArcGIS OBJECTID) |
| evacuation | string | Evacuation |
| id | double | ID |
| shape_area | double | Polygon area (source projection units) |
| shape_length | double | Geometry length/perimeter (source projection units) |
| wave_threat | string | Wave threat |
| description | string | Description |
| geometry_wkt | string | Geometry as WKT (WGS84) — MULTIPOLYGON/POINT/LINESTRING |
curl https://api.eolas.fyi/v1/datasets/ttpp_tsunami_hazard_zone/data \ -H "X-API-Key: your_key_here"
curl "https://api.eolas.fyi/v1/datasets/ttpp_tsunami_hazard_zone/data?start=2020-01-01&end=2024-12-31" \ -H "X-API-Key: your_key_here"
curl "https://api.eolas.fyi/v1/datasets/ttpp_tsunami_hazard_zone/data?format=csv" \ -H "X-API-Key: your_key_here" -o ttpp_tsunami_hazard_zone.csv
geometry_wkt
— fetch via the API or download CSV to get the full data.| Gridcode | Object Id 1 | Object Id | Evacuation | Id | Shape Area | Shape Length | Wave Threat | Description |
|---|---|---|---|---|---|---|---|---|
| 1.0 | Orange | 194931029.2241211 | 1860955.011341347 | Greater than 5m wave threat | The Orange Zone (including the Red Zone) is designed to be evacuated in the event of either 1 to 5 metre tsunami wave threat being issued for the relevant section of our coast. It has been constructed to encompass the area that may be inundated by any plausible tsunami that is forecast to have a tsunami height of up to 5 metres on top of high tide. | |||
| 2.0 | Red | 3077284116.1689453 | 1556863.9434063465 | 0.2m to 1m or greater tsunami wave threat | This represents the highest risk zone and is to be evacuated in response to a 0.2 - 1 metre tsunami wave threat or any tsunami greater than 1 metre. The zone includes threats designated a beach and marine threat as well as a land threat. The Red Zone includes the whole of the West Coast shore, including all beaches, estuaries, harbours and river mouths as well as our nearshore marine area and some very low-lying areas. People should leave this area as a precaution when they feel a long or strong earthquake, or in any natural, official or unofficial tsunami warning. | |||
| 3.0 | Yellow | 154769580.04345703 | 1887830.2454949173 | 1m to 5m tsunami wave threat | The Yellow Zone covers all maximum credible tsunami events including the highest impact events. This includes the local source maximum credible events, based on locally determined tsunami source hazard. Advice for this evacuation of the Yellow Zone (including the orange and red zones) is that this area must be evacuated if there is a long or strong earthquake. The earthquake may be the only warning of a tsunami, so people are advised not to wait for further instructions, notifications or advice, immediate evacuation is required after shaking has stopped. The Yellow Zone is designed primarily for use as a self-evacuation zone in the event of a long or strong earthquake. It may also be used for official evacuations in the event of a tsunami threat forecast that anticipates a tsunami with a height greater than 5 metres at the shore. |
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