SEAK-1878 – Residency
2nd sighting in Chatham Strait
SEAK-1878 @17978
Jun 20 – 24, 2026 · Chatham Strait
Chatham Strait, Right on Time
Rolled into that green water and it already tasted like herring.
118 m
Deepest dive
4:11
Longest dive
27
Dives
- Sightings
- 2
- Days between first and last sighting
- 4
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 20, 2026 | 145 m | 11.2°C | 89 m |
| Jun 24, 2026 | 132 m | 11.8°C | 118 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
118 m
Deepest dive
4:11
Longest dive
27
Dives
35 m
Avg dive depth
2
Sightings
4
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 (132 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jun 24, 2026
measured- Seafloor depth
- 132 m
- Sea-surface temperature
- 11.8°C
- Distance from shore
- 3.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 132 m – 145 m
- Sea-surface temperature
- 11.2°C – 11.8°C
- Distance from shore
- 3.0 km – 7.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.