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Iceland

Megatteraccia – Residency

37th sighting in Iceland
Fluke of Megatteraccia
Megatteraccia Confirmed in the catalog @105323
Jul 10 – Oct 25, 2025 · Iceland

Iceland · Jul – Oct 2025

150 m
Deepest dive
5:18
Longest dive
224
Dives
Sightings
22
Days between first and last sighting
107
Deepest dive on record
150 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 10, 2025169 m9.7°C54 m
Jul 11, 202552 m9.8°C33 m
Jul 13, 2025131 m9.8°C57 m
Jul 14, 2025202 m10.1°C135 m
Jul 15, 2025188 m10.5°C71 m
Jul 17, 2025189 m10.8°C72 m
Jul 21, 2025129 m11.6°C59 m
Jul 23, 202534 m11.1°C13 m
Jul 25, 2025114 m10.9°C86 m
Jul 26, 202575 m10.7°C58 m
Jul 31, 202572 m10.7°C63 m
Aug 2, 2025119 m10.6°C85 m
Oct 6, 202572 m6.4°C55 m
Oct 8, 2025137 m6.0°C55 m
Oct 11, 2025140 m6.1°C114 m
Oct 15, 2025115 m6.5°C32 m
Oct 16, 2025141 m6.4°C70 m
Oct 17, 2025144 m6.6°C131 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
Jul 10, 2025 — seafloor 169 m (measured), deepest dive 54 m (modelled)Jul 10Jul 11, 2025 — seafloor 52 m (measured), deepest dive 33 m (modelled)Jul 13, 2025 — seafloor 131 m (measured), deepest dive 57 m (modelled)Jul 14, 2025 — seafloor 202 m (measured), deepest dive 135 m (modelled)Jul 15, 2025 — seafloor 188 m (measured), deepest dive 71 m (modelled)Jul 15Jul 17, 2025 — seafloor 189 m (measured), deepest dive 72 m (modelled)Jul 21, 2025 — seafloor 129 m (measured), deepest dive 59 m (modelled)Jul 23, 2025 — seafloor 34 m (measured), deepest dive 13 m (modelled)Jul 25, 2025 — seafloor 114 m (measured), deepest dive 86 m (modelled)Jul 25Jul 26, 2025 — seafloor 75 m (measured), deepest dive 58 m (modelled)Jul 31, 2025 — seafloor 72 m (measured), deepest dive 63 m (modelled)Aug 2, 2025 — seafloor 119 m (measured), deepest dive 85 m (modelled)Oct 6, 2025 — seafloor 72 m (measured), deepest dive 55 m (modelled)Oct 6Oct 8, 2025 — seafloor 137 m (measured), deepest dive 55 m (modelled)Oct 11, 2025 — seafloor 140 m (measured), deepest dive 114 m (modelled)Oct 15, 2025 — seafloor 115 m (measured), deepest dive 32 m (modelled)Oct 16, 2025 — seafloor 141 m (measured), deepest dive 70 m (modelled)Oct 16Oct 17, 2025 — seafloor 144 m (measured), deepest dive 131 m (modelled)Oct 18, 2025 — seafloor 212 m (measured), deepest dive 150 m (modelled)Oct 19, 2025 — seafloor 174 m (measured), deepest dive 120 m (modelled)Oct 23, 2025 — seafloor 183 m (measured), deepest dive 63 m (modelled)Oct 23Oct 25, 2025 — seafloor 99 m (measured), deepest dive 90 m (modelled)

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

Dives

150 m
Deepest dive
5:18
Longest dive
224
Dives
29 m
Avg dive depth
22
Sightings
107
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200150 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (212 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 · Oct 18, 2025

measured
Seafloor depth
212 m
Sea-surface temperature
6.6°C
Distance from shore
6.0 km

Across the residency · 22 sightings

measured
Seafloor depth
34 m – 212 m
Sea-surface temperature
5.8°C – 11.6°C
Distance from shore
1.0 km – 7.0 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 22 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.