Monarch – Residency
8th sighting in Au'au Channel
Monarch @13087
Feb 15 – Mar 22, 2026 · Au'au Channel
Au'au Channel · Feb – Mar 2026
62 m
Deepest dive
2:35
Longest dive
23
Dives
- Sightings
- 2
- Days between first and last sighting
- 35
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Feb 15, 2026 | 62 m | 24.9°C | 39 m |
| Mar 22, 2026 | 78 m | 24.6°C | 62 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
62 m
Deepest dive
2:35
Longest dive
23
Dives
25 m
Avg dive depth
2
Sightings
35
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 (78 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Mar 22, 2026
measured- Seafloor depth
- 78 m
- Sea-surface temperature
- 24.6°C
- Distance from shore
- 4.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 62 m – 78 m
- Sea-surface temperature
- 24.6°C – 24.9°C
- Distance from shore
- 3.0 km – 4.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.