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Iceland

Nazgul – Residency

14th sighting in Iceland
Fluke of Nazgul
Nazgul Confirmed in the catalog @140051
May 30 – Jul 4, 2025 · Iceland

Iceland · May – Jul 2025

127 m
Deepest dive
4:54
Longest dive
152
Dives
Sightings
14
Days between first and last sighting
36
Deepest dive on record
127 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 30, 2025172 m—79 m
May 31, 2025206 m—25 m
Jun 9, 202597 m—84 m
Jun 11, 2025183 m—64 m
Jun 13, 2025219 m—97 m
Jun 14, 2025141 m—70 m
Jun 15, 202576 m—60 m
Jun 16, 2025148 m—84 m
Jun 16, 2025159 m—100 m
Jun 17, 2025122 m—105 m
Jun 19, 2025173 m—127 m
Jul 2, 202556 m—45 m
Jul 3, 202557 m—51 m
Jul 4, 202539 m—31 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
May 30, 2025 — seafloor 172 m (measured), deepest dive 79 m (modelled)May 30May 31, 2025 — seafloor 206 m (measured), deepest dive 25 m (modelled)Jun 9, 2025 — seafloor 97 m (measured), deepest dive 84 m (modelled)Jun 11, 2025 — seafloor 183 m (measured), deepest dive 64 m (modelled)Jun 11Jun 13, 2025 — seafloor 219 m (measured), deepest dive 97 m (modelled)Jun 14, 2025 — seafloor 141 m (measured), deepest dive 70 m (modelled)Jun 15, 2025 — seafloor 76 m (measured), deepest dive 60 m (modelled)Jun 15Jun 16, 2025 — seafloor 148 m (measured), deepest dive 84 m (modelled)Jun 16, 2025 — seafloor 159 m (measured), deepest dive 100 m (modelled)Jun 17, 2025 — seafloor 122 m (measured), deepest dive 105 m (modelled)Jun 17Jun 19, 2025 — seafloor 173 m (measured), deepest dive 127 m (modelled)Jul 2, 2025 — seafloor 56 m (measured), deepest dive 45 m (modelled)Jul 3, 2025 — seafloor 57 m (measured), deepest dive 51 m (modelled)Jul 3Jul 4, 2025 — seafloor 39 m (measured), deepest dive 31 m (modelled)

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

Dives

127 m
Deepest dive
4:54
Longest dive
152
Dives
27 m
Avg dive depth
14
Sightings
36
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150127 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (173 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 · Jun 19, 2025

measured
Seafloor depth
173 m
Sea-surface temperature
—
Distance from shore
8.0 km

Across the residency · 14 sightings

measured
Seafloor depth
39 m – 219 m
Sea-surface temperature
—
Distance from shore
1.0 km – 9.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

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

Source records

This activity is assembled from 14 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.