Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Iceland

HW-MN0101627 – Residency

39th sighting in Iceland
Fluke of HW-MN0101627
HW-MN0101627 Confirmed in the catalog @25444
Aug 25 – Sep 1, 2026 · Iceland

Herring, Right on Schedule

Late summer, this fjord, that herring seam — I could find it blind.

34 m
Deepest dive
1:36
Longest dive
4
Dives
Sightings
2
Days between first and last sighting
7

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 25, 2026-0 m8.9°C—
Sep 1, 2026217 m8.7°C34 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Aug 25, 2026 — seafloor -0 m (measured), deepest dive — (modelled)Aug 25Sep 1, 2026 — seafloor 217 m (measured), deepest dive 34 m (modelled)Sep 1

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

34 m
Deepest dive
1:36
Longest dive
4
Dives
21 m
Avg dive depth
2
Sightings
7
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255034 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (217 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Sep 1, 2026

measured
Seafloor depth
217 m
Sea-surface temperature
8.7°C
Distance from shore
3.0 km

Across the residency · 2 sightings

measured
Seafloor depth
-0 m – 217 m
Sea-surface temperature
8.7°C – 8.9°C
Distance from shore
1.0 km – 3.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 2 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.