Atalante (Opus) – Sunken Lokrian City after 426 BCE Earthquake
Ὀποῦς · Opous Atalante · Locris Atalanta · Atalanti island Opus
Mycenaean to Late Roman (Opus Mycenaean – 426 BCE drown)·Locrian Greek / Mycenaean / Classical·🇬🇷 Central Greece, Phthiotis, Locris, Atalante Island and Opountian Gulf coast, Greece
About
About Atalante (Opus) – Sunken Lokrian City after 426 BCE Earthquake
Epicenter of famous 426 BCE Malian Gulf earthquake (Thuc 3.89, Strabo 1.3.20) that drowned coastal Lokrian Opus (Homer Ajax Lesser) and separated Atalante island from mainland, submerging harbour quarter. Harbour moles 400 m now –3 to –4 m on Opountian Gulf due to Atalante rift subsidence 3 m. German Atalante survey (Kramer) maps mole, walls, modern Atalanti town overlays. Complement Pheia 551 / Helike 373 triad of quake-drowned Greek harbours documenting Gulf rift seismic history 426 marker.
Why it mattersSite of Thucydides 426 BCE quake documenting Locris Gulf rift 3 m coseismic subsidence linking Helike 373 / Pheia 551 as Greek quake triptych.
Open questions
Mysteries & theories
Mysteries
- 01Opus location – modern Atalanti vs Skala? Opounte debate
- 02Mole pre- or post-426 enlargement?
Theories
- 01Mole pre-426 Classical reused after quake with Hellenistic recut; subsidence main 426
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- Opountian Lokrians, Ajax Lesser's people
- Period
- Mycenaean to Late Roman (Opus Mycenaean – 426 BCE drown)
- Culture
- Locrian Greek / Mycenaean / Classical
- Builders
- Locrian Greek
- Purpose
- Harbour for Opountian Gulf (Epicnemidian–Opountian Lokrians)
- Abandoned
- Drowned 426 BCE Opus harbour; later rebuilds
- Rediscovered
- Oldfather Locris 1916; Kramer Atalante Island 1978; Greek Ephorate 1999
- Excavation
- Excavation ongoing
13th c. BCE
Mycenaean Opus (Lokrian Ajax) harbour
426 BCE
Thuc 3.89 / Strabo 1.3.20 quake separates Atalante island, drowns harbour –3 m
1978
Kramer maps submerged mole 400 m –3 to –4 m
1999
Ephorate sonar locates walls under silt
On the ground
Structures & features
38.6730° N · 23.0770° E · -3 m · 3 mapped features
Atalante island (severed 426 BCE)
island1.5 ha island 300 m off mainland at –3 m isthmus former
38.6740° N · 23.0780° ESubmerged Opus harbour mole
harbour400 m mole at –3 to –4 m Opountian Gulf
38.6730° N · 23.0770° EOpus city walls inland (reference)
wallLokrian walls 500 m inland Atalanti
38.6720° N · 23.0760° E