HW-MN0440021 – Residency
16th sighting in Au'au Channel
HW-MN0440021 @12867
Dec 17, 2025 – Jan 3, 2026 · Au'au Channel
Au'au Channel · Dec 2025 – Jan 2026
81 m
Deepest dive
3:24
Longest dive
62
Dives
- Sightings
- 4
- Days between first and last sighting
- 17
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Dec 17, 2025 | 44 m | — | 31 m |
| Dec 20, 2025 | 83 m | — | 64 m |
| Jan 3, 2026 | 63 m | 25.5°C | 47 m |
| Jan 3, 2026 | 188 m | 25.6°C | 81 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
81 m
Deepest dive
3:24
Longest dive
62
Dives
22 m
Avg dive depth
4
Sightings
17
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (188 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 3, 2026
measured- Seafloor depth
- 188 m
- Sea-surface temperature
- 25.6°C
- Distance from shore
- 9.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 44 m – 188 m
- Sea-surface temperature
- 25.5°C – 25.6°C
- Distance from shore
- 2.0 km – 9.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.