EUA-198 – Residency
2nd sighting in Tonga
EUA-198 @51259
Jul 24, 2026 · Tonga
Tonga · Jul 2026
32 m
Deepest dive
1:07
Longest dive
5
Dives
- Sightings
- 1
- Days between first and last sighting
- Same day
- Deepest dive on record
- 32 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 24, 2026 | 290 m | 23.5°C | 32 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
32 m
Deepest dive
1:07
Longest dive
5
Dives
18 m
Avg dive depth
1
Sightings
Same day
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 (290 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 24, 2026
measured- Seafloor depth
- 290 m
- Sea-surface temperature
- 23.5°C
- Distance from shore
- 8.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 1 catalogued encounter on Happywhale.