February 24โ25, 1942 ยท Los Angeles, California, USA
Less than three months after Pearl Harbor, and just one day after a Japanese submarine shelled the Santa Barbara oil field, a massive unidentified object was spotted over Los Angeles. Anti-aircraft searchlights converged on it, 1,400+ shells were fired into the night sky, and the event was photographed by the LA Times. The military called it a 'false alarm' โ but the photos show something in the searchlights. Five civilians died from friendly fire. No aircraft wreckage was ever found. No bombs were dropped. It happened five years before the modern UFO era began.
Seven key images from the Battle of Los Angeles โ the iconic LA Times searchlight photo, the newspaper front page, the battle map, two primary government documents, and the wartime context photos showing Pearl Harbor and the Japanese submarine that shelled Santa Barbara the day before. Click any photo to view full size.
Searchlights converging during the Battle of Los Angeles, 1942. This is the iconic image showing anti-aircraft searchlights focused on an object in the sky over Los Angeles, with shell bursts visible around it.
๐ท Unknown (AP distributed) ยท February 24-25, 1942 ยท Public domain (AP photos distributed 1931-1963 without copyright renewal)
Page B of the February 26, 1942, Los Angeles Times, showing the coverage of the so-called Battle of Los Angeles and its aftermath โ lots of articles on people finding dud shells, unexploded ordnance, etc.
๐ท LA Times ยท February 26, 1942 ยท Public domain (PD US not renewed)
Map showing key locations: Red = Los Angeles County; 1 = Ellwood Oil Field (Japanese submarine attack the day before); 2 = 120 miles west of LA where radar detected a flying object; 3 = Long Beach where airplanes were reported; 4 = Santa Monica where a balloon was witnessed.
๐ท User:Dbenbenn, User:Onhigan ยท October 23, 2021 ยท Public domain (PD-user)
A memorandum from General George C. Marshall, Chief of Staff of the United States Army, to President Roosevelt, regarding the 'Battle of Los Angeles'.
๐ท Unknown (US Government document) ยท February 26, 1942 ยท Public domain (PD US Government)
A memorandum between President Roosevelt and Henry L. Stimson, Secretary of War, regarding the so-called 'Battle of Los Angeles'.
๐ท Unknown (US Government document) ยท 1942 ยท Public domain (PD US Government)
The USS Arizona (BB-39) burning after the Japanese attack on Pearl Harbor, December 7, 1941. The ship is resting on the harbor bottom after the forward magazine exploded.
๐ท Unknown ยท December 7, 1941 ยท Public domain (PD US Government, NARA)
Japanese submarine I-17 shortly after launching. This is the submarine that shelled the Ellwood Oil Field near Santa Barbara on February 23, 1942 โ the day before the Battle of Los Angeles.
๐ท Unknown ยท July 19, 1939 ยท Public domain
The night 1,400 anti-aircraft shells were fired at an unidentified object over wartime Los Angeles โ and no wreckage was ever found.
Less than three months after Pearl Harbor and one day after a Japanese submarine shelled the Santa Barbara oil field, a massive unidentified object was spotted over Los Angeles. Searchlights converged on it, 1,400+ anti-aircraft shells were fired, and the event was photographed by the LA Times. The military called it a 'false alarm' but the photos show something in the searchlights. Five civilians died from friendly fire. No aircraft wreckage was ever found.
The context made the panic understandable. On December 7, 1941, Japan attacked Pearl Harbor, killing 2,403 Americans and drawing the United States into World War II. Less than three months later, on the evening of February 23, 1942 โ during one of President Roosevelt's fireside chats โ the Japanese submarine I-17 surfaced near Santa Barbara and shelled the Ellwood Oil Field. It was the first shelling of the US mainland in WWII. The damage was minimal ($500, no injuries), but the psychological impact was enormous. The entire West Coast believed an invasion was imminent.
The next night, air raid sirens sounded across Los Angeles County at 2:25 AM. A total blackout was ordered. At 3:16 AM, the 37th Coast Artillery Brigade opened fire with .50-caliber machine guns and 12.8-pound anti-aircraft shells. Over the next hour, more than 1,400 rounds were fired at reported aircraft. Searchlights converged on an object in the sky. The LA Times photographed it. Witnesses reported wildly different numbers of objects โ from one to several hundred โ at altitudes from a few thousand feet to over 20,000 feet, moving at speeds from "very slow" to over 200 mph.
The firing ended sporadically at 4:14 AM. The "all clear" sounded at 7:21 AM. Five civilians were dead โ three killed in car crashes during the blackout, two from heart attacks. Several buildings and vehicles were damaged by falling shell fragments. Unexploded ordnance was found by civilians in the following days. Four Japanese aircraft were initially reported shot down. None were found. No bombs were dropped. No wreckage was recovered. The mysterious forces "dropped no bombs and suffered no losses" despite 1,440 rounds directed against them.
Within hours, Secretary of the Navy Frank Knox called it a "false alarm" caused by "war nerves." The Army disagreed โ General George C. Marshall wrote to President Roosevelt suggesting enemy agents using commercial airplanes in a psychological warfare campaign. Secretary of War Stimson reported the object moved at speeds from "very slow" to "200 mph" โ too slow for any aircraft of the era to remain airborne. Representative Leland Ford called for a Congressional investigation, saying "none of the explanations so far offered removed the episode from the category of complete mystification." The Navy and Army gave contradictory statements within 24 hours. Seven decades later, no single explanation has fully accounted for what was seen and photographed over Los Angeles that night.
From the Pearl Harbor attack that set the stage, through the hour-long bombardment, to seven decades of investigation, official explanations, and the event's enduring legacy in UFO history.
Japanese attack on Pearl Harbor. The United States enters World War II the next day. The West Coast is gripped by paranoia about Japanese invasion.
Multiple American merchant ships attacked by Japanese submarines off the West Coast. Blackouts ordered in Juneau, Oakland, and Seattle. 500 Army troops moved into Walt Disney Studios lot in Burbank to defend against sabotage or air attacks.
Japanese submarine I-17 surfaces near Santa Barbara and shells the Ellwood Oil Field in Goleta. Damage is minimal ($500, no injuries) but the psychological impact is enormous โ West Coast residents believe a Japanese invasion is imminent. The attack occurs during President Roosevelt's fireside chat.
Office of Naval Intelligence issues warning that an attack on mainland California could be expected within the next ten hours. Many flares and blinking lights reported from the vicinity of defense plants. Alert called at 7:18 PM, lifted at 10:23 PM.
Air raid sirens sound throughout Los Angeles County. Total blackout ordered. Thousands of air raid wardens summoned to positions.
37th Coast Artillery Brigade begins firing .50-caliber machine guns and 12.8-pound anti-aircraft shells at reported aircraft. Over 1,400 shells fired. 4th Interceptor Command pilots alerted but aircraft remain grounded.
A balloon carrying a red flare seen over Santa Monica. Four batteries of anti-aircraft artillery open fire. 'The air over Los Angeles erupted like a volcano.' Reports become 'hopelessly at variance' โ swarms of planes or balloons, 1 to several hundred, altitudes from a few thousand feet to 20,000+, speeds from 'very slow' to over 200 mph.
Artillery fire ends sporadically. The mysterious forces dropped no bombs and suffered no losses despite 1,440 rounds directed against them.
'All clear' sounded and blackout order lifted. Five civilians dead: 3 in car crashes, 2 from heart attacks. Several buildings and vehicles damaged by shell fragments. Four Japanese aircraft erroneously reported shot down โ none found.
Secretary of the Navy Frank Knox holds press conference, calls it a 'false alarm' due to 'war nerves.' Newspapers suspect a cover-up. The Long Beach Independent writes of 'mysterious reticence' and possible censorship.
LA Times publishes iconic searchlight photo and extensive coverage. Army issues statement reflecting Marshall's psychological warfare theory. Rep. Leland Ford calls for Congressional investigation.
LA Times reports West Coast legislators 'stirred by conflicting air-raid statements' and assailing Knox over 'false alarm' characterization.
After the war, the Japanese government declares they flew no airplanes over Los Angeles during the entire war, definitively ruling out the Japanese aircraft theory.
US Coast Artillery Association publishes Col. Murphy's report identifying a meteorological balloon as having 'started all the shooting.'
US Office of Air Force History publishes official analysis attributing the event to 'war nerves' triggered by a lost weather balloon, exacerbated by stray flares and shell bursts.
The film 'Battle: Los Angeles' uses the 1942 event as backstory. LA Times writer Larry Harnisch reveals the iconic photo was retouched and criticizes the film's marketing for using faked material.
Nine key figures โ from the Secretary of the Navy who called it a "false alarm" to the Secretary of War who reported the object's impossible speed, the Army Chief of Staff who wrote to the President, and the LA Times writer who discovered the photo was retouched.
Secretary of the Navy
Official testimony / statement
Credibility: ๐ข Reliable
Held a press conference within hours of the air raid, calling the entire incident a 'false alarm' caused by anxiety and 'war nerves.' His statement immediately angered West Coast legislators who felt he was dismissing a real threat.
Secretary of War
Official testimony / statement
Credibility: ๐ข Reliable
Reported to President Roosevelt that the object moved at speeds varying from 'very slow' to '200 mph' โ a speed too slow for any aircraft of the era to remain airborne. His memorandum is preserved as a government document.
Chief of Staff, United States Army
Official testimony / statement
Credibility: ๐ข Reliable
Sent a memorandum to President Roosevelt on February 26, 1942, suggesting the incident might have been caused by enemy agents using commercial airplanes in a psychological warfare campaign to generate mass panic.
U.S. Representative (Santa Monica, CA)
Official testimony / statement
Credibility: ๐ข Reliable
Called for a Congressional investigation, stating 'none of the explanations so far offered removed the episode from the category of complete mystification.' Suggested it was either a practice raid, a scare tactic, a mistaken identity, or a political raid to move war industries inland.
President of the United States
Official testimony / statement
Credibility: ๐ข Reliable
Received memoranda from both General Marshall and Secretary Stimson regarding the event. The bombardment of Ellwood had occurred during one of his fireside chats the evening before.
Anti-aircraft artillery unit
Official testimony / statement
Credibility: ๐ข Reliable
Fired .50-caliber machine guns and 12.8-pound anti-aircraft shells at reported aircraft beginning at 3:16 am. Over 1,400 shells were fired. The artillery fire continued sporadically until 4:14 am.
Fighter pilots on alert
Official testimony / statement
Credibility: ๐ข Reliable
Pilots were alerted but their aircraft remained grounded throughout the event. No interceptor aircraft were scrambled, which is notable given the perceived threat level.
Los Angeles Times writer/historian
Official testimony / statement
Credibility: ๐ก Moderate
Investigated the event decades later and found that the iconic LA Times photo was heavily retouched prior to publication โ white paint was added to define where the searchlights converged, which UFOlogists later misinterpreted as a UFO. Harnisch criticized the 2011 film Battle: Los Angeles for using the retouched photo and faked headlines as 'true historical material.'
US Coast Artillery Association
Official testimony / statement
Credibility: ๐ข Reliable
In 1949, documented that a meteorological balloon sent aloft at 1:00 am 'started all the shooting' and that 'once the firing started, imagination created all kinds of targets in the sky and everyone joined in.'
Eleven key documents โ General Marshall's memo to President Roosevelt, the Roosevelt-Stimson correspondence, Secretary Knox's "false alarm" statement, the 1949 Coast Artillery report, the 1983 Air Force History analysis, the Japanese government's postwar declaration, and Congressional calls for investigation. Click any card with a link to view the source.
Memorandum from General George C. Marshall, Chief of Staff of the United States Army, to President Roosevelt regarding the Battle of Los Angeles. Marshall suggested the incident might have been caused by enemy agents using commercial airplanes in a psychological warfare campaign to generate mass panic.
View document โCorrespondence between President Roosevelt and Secretary of War Henry L. Stimson regarding the Battle of Los Angeles. Stimson reported the object moved at speeds from 'very slow' to '200 mph' โ too slow for any aircraft of the era to remain airborne.
View document โSecretary of the Navy Frank Knox held a press conference within hours of the air raid ending, calling the entire incident a 'false alarm' caused by anxiety and 'war nerves.' This immediately contradicted the Army's position and angered West Coast legislators.
No online source availableThe Army's statement the day after Knox's 'false alarm' declaration, reflecting General Marshall's supposition that the incident might have been caused by enemy agents using commercial airplanes in a psychological warfare campaign.
No online source availableCol. John G. Murphy's report 'Activities of The Ninth Army AAA โ L.A. Attacked' identified a meteorological balloon sent aloft at 1:00 am as having 'started all the shooting' and concluded that 'once the firing started, imagination created all kinds of targets in the sky and everyone joined in.'
No online source availableCraven & Cate's official history attributed the event to 'war nerves' triggered by a lost weather balloon, exacerbated by stray flares and shell bursts from adjoining batteries. Noted that 1,440 rounds were fired, reports were 'hopelessly at variance,' and the mysterious forces 'dropped no bombs and suffered no losses.'
No online source availableRepresentative Leland M. Ford of Santa Monica called for a Congressional investigation, saying 'none of the explanations so far offered removed the episode from the category of complete mystification.' He suggested it was either a practice raid, a raid to scare 2 million people, a mistaken identity, or a raid to lay political foundation to move Southern California's war industries inland.
No online source availableAfter the war ended in 1945, the Japanese government declared that they had flown no airplanes over Los Angeles during the entire war. This definitively ruled out the Japanese aircraft theory.
No online source availablePage B of the February 26, 1942 Los Angeles Times showing extensive coverage of the Battle of Los Angeles and its aftermath, including articles on civilians finding dud shells and unexploded ordnance.
View document โEditorial questioning the official explanations and suggesting censorship was trying to halt discussion of the event.
No online source availableCoverage of West Coast legislators' anger over Secretary Knox's 'false alarm' statement and the conflicting air-raid statements from the Navy and Army.
No online source availableSix skeptical explanations โ from the weather balloon theory to war nerves, Japanese aircraft, commercial planes, photo retouching, and stray flares. Each is presented fairly with its evidence and counterarguments.
Proposed by: US Coast Artillery Association (1949), Office of Air Force History (1983)
A meteorological balloon was sent aloft at 1:00 am. Col. Murphy's 1949 report stated it 'started all the shooting.' The 1983 Air Force History analysis concluded that a balloon carrying a red flare was seen over Santa Monica at 3:06 am, triggering the barrage. Once firing started, 'imagination created all kinds of targets in the sky.'
Proposed by: Secretary of Navy Frank Knox (1942), Office of Air Force History (1983)
The event occurred the night after a real Japanese submarine attack on Santa Barbara. The West Coast was under extreme anxiety after Pearl Harbor. Reports were 'hopelessly at variance' โ witnesses reported wildly different numbers, speeds, and altitudes. The 1983 analysis described it as a case of 'war nerves' exacerbated by stray flares and shell bursts.
Proposed by: Initial military assessment and public speculation
The event happened the night after the I-17 shelled Santa Barbara. Japan had demonstrated the capability to attack the US mainland. Four aircraft were initially reported shot down.
Proposed by: General George C. Marshall
Marshall's February 26 memo to Roosevelt suggested enemy agents using commercial airplanes in a psychological warfare campaign to generate mass panic.
Proposed by: Larry Harnisch (LA Times writer, 2011)
The iconic LA Times photo was heavily retouched before publication โ white paint was added to define where the searchlights converged, a routine practice in 1940s graphic arts to improve contrast. UFOlogists later misinterpreted the retouching as a solid object/UFO.
Proposed by: Office of Air Force History (1983)
The 1983 analysis noted that 'probably much of the confusion came from the fact that anti-aircraft shell bursts, caught by the searchlights, were themselves mistaken for enemy planes.'
The Battle of Los Angeles didn't just fire 1,400 shells at nothing โ it killed five civilians, terrorized a city of two million, deepened the racial injustice against Japanese-Americans, embarrassed the military, and became a defining moment of West Coast WWII anxiety.
5 civilians died: 3 killed in car crashes during the blackout chaos, 2 died of heart attacks attributed to the stress of the hour-long bombardment.
Sources: LA Times (Feb 26, 1942); Office of Air Force History (1983)
Several buildings and vehicles damaged by shell fragments falling back to earth. Unexploded ordnance found by civilians in the following days.
Sources: LA Times (Feb 26, 1942); Wikipedia
A city of 2 million people, already terrified after Pearl Harbor and the Santa Barbara shelling the day before, was subjected to an hour of anti-aircraft fire in the dark. The blackout, sirens, and falling shell fragments created widespread panic. The event became a defining moment of West Coast WWII anxiety.
Sources: Smithsonian Magazine; LA Times (Feb 25, 2017)
The event occurred in the context of the Japanese-American internment. The bombardment of Ellwood the day before had directly influenced the decision to intern Japanese-Americans. The Battle of LA further heightened anti-Japanese sentiment and fears of a fifth column. The incident is covered in the Japanese American History reference book from this perspective.
Sources: Japanese American History: An A-to-Z Reference (1993), p. 112
The military fired 1,440 rounds of anti-aircraft ammunition at something that caused no damage, dropped no bombs, and was never identified. Four aircraft were erroneously reported shot down. The Navy and Army gave conflicting explanations within 24 hours. The event was 'derisively referred to as the Battle of Los Angeles' โ a term of mockery for military incompetence.
Sources: Office of Air Force History (1983); Lotchin (2003)
West Coast legislators were angered by Secretary Knox's 'false alarm' dismissal. Rep. Leland Ford called for a Congressional investigation. The Long Beach Independent suggested censorship. Some speculated the event was staged to justify moving defense industries inland.
Sources: LA Times (Feb 27, 1942); Rep. Leland Ford statement
The Battle of Los Angeles occurred 5 years BEFORE the modern UFO era began with Kenneth Arnold's 1947 sighting. It became one of the earliest and most well-documented cases of the military engaging an unidentified aerial object, and is frequently cited in UFO literature as a pre-1947 case. The iconic photograph remains one of the most debated images in ufology.
Sources: Dolan (2002); Robertson (2016)
Fifteen surprising facts about the Battle of Los Angeles โ from 1,400 shells fired at nothing to the object's impossible speed, the retouched photo, the all-clear that sounded too soon, and the fact that it happened five years before anyone had heard of a "flying saucer."
Nine books covering the Battle of Los Angeles โ from the official Air Force history to UFO conspiracy analyses, Japanese-American history perspectives, and the social psychology of mass panic. Both sides are represented. Links support The UAP Map via Amazon Associates.
References the 'Great Los Angeles Air Raid' in the context of LA's history.
View on Amazon โHistorian Roger Lotchin's analysis noting the incident 'became derisively termed The Battle of Los Angeles or The Great Los Angeles Air Raid and is often cited as an example of the buffoonery that suffused the war effort in the state.'
View on Amazon โThe official Air Force history containing the chapter 'West Coast Air Defenses' / 'The Battle of Los Angeles' โ the definitive 1983 government analysis attributing the event to war nerves and weather balloons.
View on Amazon โContains an entry on the Battle of Los Angeles from the perspective of Japanese-American history, including the racial dimension of the event.
View on Amazon โAnalyzes the Battle of Los Angeles photo in the context of UFO conspiracy theories and how the retouched LA Times photo was misinterpreted by UFOlogists.
View on Amazon โReferences the Battle of Los Angeles in the context of mass panic and social psychology.
View on Amazon โDolan covers the Battle of Los Angeles as a pre-1947 UFO incident and discusses it in the context of the national security state. The book opens with the 1942 event as one of the earliest documented cases of military engagement with an unidentified aerial object.
View on Amazon โA book specifically about the 1942 Battle of Los Angeles event, examining the evidence and witness accounts.
View on Amazon โWritten by the former head of Project Blue Book. While primarily covering post-1947 cases, Ruppelt references the 1942 LA event as context for the military's early encounters with unidentified aerial phenomena.
View on Amazon โDocumentaries and videos about the Battle of Los Angeles. Search links are provided so you can find currently available content on YouTube.
Various ยท varies
Multiple documentaries exist covering the Battle of LA. Search YouTube for 'Battle of Los Angeles 1942 documentary' for current available content.
Search on YouTube โVarious history channels ยท varies
Historical analysis videos covering the timeline, the searchlight photo, and the official explanations.
Search on YouTube โSony Pictures ยท Feature film
The 2011 sci-fi film Battle: Los Angeles used the 1942 event as its backstory. Trailers featured the retouched LA Times photo and faked newspaper headlines, which LA Times writer Larry Harnisch criticized as presenting 'UFO research as nothing but lies and fakery.'
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