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

HW-MN1108881 – Residency

4th sighting in East Australia
Fluke of HW-MN1108881
HW-MN1108881 Confirmed in the catalog @131202
Sep 6 – 7, 2026 · East Australia

East Australia · Sep 2026

15 m
Deepest dive
0:57
Longest dive
30
Dives
Sightings
3
Days between first and last sighting
1
Deepest dive on record
15 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 6, 202616 m21.4°C11 m
Sep 7, 202615 m21.2°C13 m
Sep 7, 202616 m21.2°C15 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
Sep 6, 2026 — seafloor 16 m (measured), deepest dive 11 m (modelled)Sep 6Sep 7, 2026 — seafloor 15 m (measured), deepest dive 13 m (modelled)Sep 7Sep 7, 2026 — seafloor 16 m (measured), deepest dive 15 m (modelled)Sep 7

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

Dives

15 m
Deepest dive
0:57
Longest dive
30
Dives
8 m
Avg dive depth
3
Sightings
1
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255015 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (16 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 · Sep 7, 2026

measured
Seafloor depth
16 m
Sea-surface temperature
21.2°C
Distance from shore
9.0 km

Across the residency · 3 sightings

measured
Seafloor depth
15 m – 16 m
Sea-surface temperature
21.2°C – 21.4°C
Distance from shore
7.0 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 3 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.