Case summary
On 2 July 1937, Amelia Earhart and navigator Fred Noonan vanished in their Lockheed Electra on the Lae–Howland leg of a round-the-world flight. The largest US Navy search of its era found no trace. The crash-and-sink, Nikumaroro landing and other hypotheses are still being tested with sonar surveys and archival radio logs.
Timeline
- 1937-07-02Departure from Lae; the cutter Itasca logged fading radio calls and the aircraft never reached Howland.
- 1937-07-09Navy aircraft overflew Nikumaroro (Gardner) and reported no sign of life.
- 1937-07-19The official search ended with a 'lost at sea' determination.
- 1940-09A partial skeleton was found on Nikumaroro; the 1941 measurements later became disputed.
- 2018-03Richard Jantz's anthropometric analysis argued the bones were consistent with Earhart.
- 2024-01Deep Sea Vision announced a plane-like sonar contact; follow-up review showed a rock formation.
People and connections
- Amelia Earhart
Pilot; first woman to fly the Atlantic solo.
- Fred Noonan
Navigator; among those who charted Pan Am's Pacific routes.
- USCGC Itasca
The cutter stationed off Howland; source of the final radio logs.
- TIGHAR
Research group advancing the Nikumaroro hypothesis.
- USCGC Itasca to Amelia EarhartLast confirmed radio contact (07:42 and 08:43 logs)
- TIGHAR to Fred NoonanAttribution of Nikumaroro artefacts to the crew is disputed
Findings
The aircraft never reached Howland; Itasca radio logs document fuel and visibility trouble.
The simplest 'crash and sink' hypothesis remains unproven because no wreckage has been found.
Nikumaroro bone measurements produced opposite conclusions in two analyses (1941 Hoodless vs 2018 Jantz).
Claims of Japanese capture or survival have never been verified by any primary document.
Documents
- DocumentItasca radio logThe official minute-by-minute record of the final messages.
- PhotographLae departure photographsThe last known frames of the Electra, morning of 2 July 1937.
- MapSearch area and hypothesis mapThe Howland line, Nikumaroro and sonar survey boxes.
Sources
Locations
- Howland Island0.81°, -176.62°
- Nikumaroro-4.68°, -174.52°
- Lae, Papua New Guinea (departure)-6.73°, 147.00°
Researcher's note
Interpretation: after nearly 90 years all three hypotheses still await evidence. The lesson for researchers is that a lead such as a sonar contact does not count as a result without independent verification. The 2024 survey is a current example.
Recent checks
- 2026-04-10The debunking of the 2024 sonar claim folded into findings.

