HIHWNMS-2015-2-18_G4_A1 – Residency
4th sighting in Au'au Channel
HIHWNMS-2015-2-18_G4_A1 @36864
Feb 28 – Mar 16, 2026 · Au'au Channel
Au'au Channel · Feb – Mar 2026
39 m
Deepest dive
1:49
Longest dive
51
Dives
- Sightings
- 2
- Days between first and last sighting
- 16
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Feb 28, 2026 | 28 m | 24.6°C | 25 m |
| Mar 16, 2026 | 42 m | 24.9°C | 39 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
39 m
Deepest dive
1:49
Longest dive
51
Dives
15 m
Avg dive depth
2
Sightings
16
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 (42 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Mar 16, 2026
measured- Seafloor depth
- 42 m
- Sea-surface temperature
- 24.9°C
- Distance from shore
- 2.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 28 m – 42 m
- Sea-surface temperature
- 24.6°C – 24.9°C
- Distance from shore
- 2.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.