Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
East Australia

HNC975 – Residency

7th sighting in East Australia
Fluke of HNC975
HNC975 Confirmed in the catalog @61066
Jul 25 – Sep 8, 2026 · East Australia

Warm Water, Good Company

Winter shallows, familiar backs nearby, and nobody in a hurry.

16 m
Deepest dive
1:10
Longest dive
86
Dives
Sightings
5
Days between first and last sighting
45
Deepest dive on record
16 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 25, 202616 m19.5°C14 m
Jul 26, 202616 m19.5°C13 m
Jul 27, 202615 m19.5°C13 m
Jul 28, 202619 m20.0°C16 m
Sep 8, 202616 m21.4°C14 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Jul 25, 2026 — seafloor 16 m (measured), deepest dive 14 m (modelled)Jul 25Jul 26, 2026 — seafloor 16 m (measured), deepest dive 13 m (modelled)Jul 26Jul 27, 2026 — seafloor 15 m (measured), deepest dive 13 m (modelled)Jul 27Jul 28, 2026 — seafloor 19 m (measured), deepest dive 16 m (modelled)Jul 28Sep 8, 2026 — seafloor 16 m (measured), deepest dive 14 m (modelled)Sep 8

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

16 m
Deepest dive
1:10
Longest dive
86
Dives
8 m
Avg dive depth
5
Sightings
45
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255016 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (19 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Jul 28, 2026

measured
Seafloor depth
19 m
Sea-surface temperature
20.0°C
Distance from shore
9.0 km

Across the residency · 5 sightings

measured
Seafloor depth
15 m – 19 m
Sea-surface temperature
19.5°C – 21.4°C
Distance from shore
6.0 km – 9.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 5 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.