Antediluvian – Residency
1st sighting in Hawaiian Islands
Antediluvian @5833
Jan 24 – Feb 3, 2026 · Hawaiian Islands
Hawaiian Islands · Jan – Feb 2026
72 m
Deepest dive
2:51
Longest dive
37
Dives
- Sightings
- 2
- Days between first and last sighting
- 10
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jan 24, 2026 | 228 m | 25.1°C | 72 m |
| Feb 3, 2026 | 60 m | 25.7°C | 44 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
72 m
Deepest dive
2:51
Longest dive
37
Dives
28 m
Avg dive depth
2
Sightings
10
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 (228 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 24, 2026
measured- Seafloor depth
- 228 m
- Sea-surface temperature
- 25.1°C
- Distance from shore
- 6.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 60 m – 228 m
- Sea-surface temperature
- 25.1°C – 25.7°C
- Distance from shore
- 4.0 km – 6.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.