The Socorro UFO Incident, also known as the Lonnie Zamora Incident, refers to a close encounter and physical trace event that occurred on Friday, April 24, 1964, on the outskirts of Socorro, New Mexico. The incident is widely regarded by UFO researchers, mainstream academics, and even skeptical investigators as one of the most credible, thoroughly documented, and genuinely perplexing UFO reports in history. It remains officially classified as Unknown by the U.S. Air Force's Project Blue Book — the Air Force's own UFO investigation program — which was unable to identify a conventional explanation despite extensive investigation.
The case is unique in the UFO literature for several reasons: the primary witness was a trained law enforcement officer with an established reputation for reliability; multiple government agencies (U.S. Army, U.S. Air Force, FBI) investigated the site within hours and days; physical trace evidence was documented and analyzed; and the event was described in a classified CIA intelligence publication by the head of Project Blue Book himself as the definitive unsolved case in American UFO investigation history.
| Field |
Detail
|
| Date |
Friday, April 24, 1964
|
| Time |
Approximately 5:45 PM Mountain Standard Time
|
| Location |
Outskirts of Socorro, New Mexico; arroyo southwest of town
|
| Primary witness |
Sergeant Lonnie Zamora, Socorro Police Department
|
| Secondary witness |
Sergeant Sam Chavez, New Mexico State Police
|
| Additional witnesses |
Tourists at Whiting Bros. gas station; others in area
|
| Object description |
Oval / egg-shaped; white or aluminum-colored; on four angular legs
|
| Occupants observed |
Two small humanoid figures in white coveralls
|
| Symbol observed |
Red insignia on craft's side; inverted V with horizontal arc above
|
| Physical evidence |
Four angular ground impressions; scorched vegetation; metal scrapings on rock
|
| Investigating agencies |
U.S. Army (Capt. Richard T. Holder); U.S. Air Force / Project Blue Book; FBI; New Mexico State Police
|
| Project Blue Book lead |
Major Hector Quintanilla Jr.; Dr. J. Allen Hynek (scientific consultant)
|
| Project Blue Book result |
UNKNOWN — no conventional explanation identified
|
| CIA publication reference |
Quintanilla, "Studies in Intelligence," CIA classified publication, Fall 1966
|
| Hynek classification |
Close Encounter of the Second Kind (CE-II) — physical trace evidence
|
| Current official status |
Unresolved — never definitively explained
|
| Time / Date |
Event
|
| ~5:45 PM, April 24, 1964 |
Zamora hears roar and sees blue-orange flame; abandons speeder pursuit
|
| ~5:45–5:50 PM |
Zamora drives toward arroyo; first sees object; believes it is an overturned car
|
| ~5:50 PM |
Zamora parks, approaches on foot; hears thumps; sees object clearly with two figures
|
| ~5:50–5:51 PM |
Figures apparently enter craft; Zamora retreats when roar and flame erupt
|
| ~5:51–5:52 PM |
Object rises, levels off, departs southwest; Zamora radios dispatcher
|
| ~5:53 PM |
Sgt. Sam Chavez arrives; confirms physical evidence in arroyo
|
| Evening, April 24 |
Capt. Richard T. Holder (U.S. Army) arrives; secures site; begins investigation
|
| April 25–26 |
FBI special agent D. Arthur Byrnes Jr. visits site; interviews Zamora
|
| April 26–28 |
Dr. J. Allen Hynek arrives; examines site; interviews Zamora
|
| April–May 1964 |
National media coverage; wire stories published nationwide
|
| Fall 1966 |
Quintanilla's classified CIA article names Socorro the definitive unsolved case
|
| 1966 |
Hollomann AFB visitor reports similar object seen near base six days after Socorro
|
| 1981 |
CIA article declassified; becomes available under FOIA
|
| 2012 |
Socorro commissions mural on Park Street spillway commemorating incident
|
| 2009 |
Lonnie Zamora dies of cardiac arrest; never retracted or changed his account
|