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

Emma Jean – Residency

2nd sighting in Hawaiian Islands
Fluke of Emma Jean
Emma Jean Confirmed in the catalog @153927
Jan 28 – Feb 10, 2026 · Hawaiian Islands

Hawaiian Islands · Jan – Feb 2026

109 m
Deepest dive
3:43
Longest dive
45
Dives
Sightings
3
Days between first and last sighting
13
Deepest dive on record
109 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jan 28, 2026681 m25.7°C109 m
Jan 30, 202673 m25.7°C51 m
Feb 10, 202642 m25.0°C35 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
Jan 28, 2026 — seafloor 681 m (measured), deepest dive 109 m (modelled)Jan 28Jan 30, 2026 — seafloor 73 m (measured), deepest dive 51 m (modelled)Jan 30Feb 10, 2026 — seafloor 42 m (measured), deepest dive 35 m (modelled)Feb 10

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

Dives

109 m
Deepest dive
3:43
Longest dive
45
Dives
23 m
Avg dive depth
3
Sightings
13
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150109 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (681 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 · Jan 28, 2026

measured
Seafloor depth
681 m
Sea-surface temperature
25.7°C
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
42 m – 681 m
Sea-surface temperature
25.0°C – 25.7°C
Distance from shore
2.0 km

Sources: GEBCO seafloor grid · NOAA OISST 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.