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

Megatteraccia – Residency

7th sighting in Iceland
Fluke of Megatteraccia
Megatteraccia Confirmed in the catalog @105323
Oct 21 – 30, 2023 · Iceland

Iceland · Oct 2023

119 m
Deepest dive
3:54
Longest dive
64
Dives
Sightings
6
Days between first and last sighting
9

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Oct 21, 2023166 m6.3°C119 m
Oct 23, 2023139 m6.4°C27 m
Oct 24, 2023180 m6.0°C54 m
Oct 26, 202382 m5.7°C58 m
Oct 29, 2023211 m6.0°C47 m
Oct 30, 202386 m5.7°C43 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
Oct 21, 2023 — seafloor 166 m (measured), deepest dive 119 m (modelled)Oct 21Oct 23, 2023 — seafloor 139 m (measured), deepest dive 27 m (modelled)Oct 23Oct 24, 2023 — seafloor 180 m (measured), deepest dive 54 m (modelled)Oct 24Oct 26, 2023 — seafloor 82 m (measured), deepest dive 58 m (modelled)Oct 26Oct 29, 2023 — seafloor 211 m (measured), deepest dive 47 m (modelled)Oct 29Oct 30, 2023 — seafloor 86 m (measured), deepest dive 43 m (modelled)Oct 30

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

Dives

119 m
Deepest dive
3:54
Longest dive
64
Dives
24 m
Avg dive depth
6
Sightings
9
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150119 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (166 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 21, 2023

measured
Seafloor depth
166 m
Sea-surface temperature
6.3°C
Distance from shore
8.0 km

Across the residency · 6 sightings

measured
Seafloor depth
82 m – 211 m
Sea-surface temperature
5.7°C – 6.4°C
Distance from shore
3.0 km – 8.0 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 6 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.