This is the largest video list of loud booms and skyquakes reported in 2021. If you hear a weird sky sound that you can’t immediately identify, tell us—location, date/time, and a phone recording help a lot.
Fun (apocalyptic) possibilities people toss around: if it’s not natural, human-made, or harmless, it must be… the return of Jesus, the work of Satan, a secret government project, the New World Order, a message from aliens, Project Blue Beam rehearsals, or a mind-control test by HAARP. 😉
Weird noises in December 2021
- Elk Grove, California — Mysterious noise with massive flash (December 30, 2021):
- Tucson, Arizona — Residents shaking for answers after rattling booming noises (December 29, 2021):
- Austin, Texas — several booms ressembling ‘gun shots’, ‘exploding transformer’” in the sky (December 18, 2021):
Strange sounds from the sky in November 2021
Strange sounds from the sky in October 2021
- New Hampshire, New England, Massachusetts, USA — Massive cosmic boom heard and felt by many (October 12, 2021):
Strange sounds from the sky in September 2021
- Virginia, West Virginia, USA — Hundreds of people in the Shenandoah Valley reported hearing a loud boom and feeling the ground shaking. So what was the mysterious noise? Probably a meteor fireball (September 17, 2021):
- Helsinki, Finland — Mysterious boom rattles thousands across capital of Finland (September 15, 2021). Yle
Trumpet sounds and hums in August 2021
Strange sky sounds in July 2021
- Texas, USA — Bright fireball explodes over Texas in loud bang so powerful it shook some houses (July 25, 2021):
Strange sky sounds in June 2021
Tuesday night by residents across.
- San Diego County, USA — A mysterious boom heard and shaking felt across San Diego. Army trainings? (June 13, 2021):
Strange sounds from the sky in May 2021
Weird noises from the sky in April 2021
Strange sounds in March 2021
Strange sounds from the sky in February 2021
Strange sounds from the sky in January 2021
- Southwest Louisiana, USA — Strong boom rattles wide range (January 28, 2021):
- South Ohio, USA — Loud Bangs off grid (January 23, 2021):
Sky Trumpets 2021 — FAQ
What are “sky trumpets” and “skyquakes”?
“Sky trumpets” is the popular name for long, horn-like drones and metallic groans reported in the air.
In science reporting, sudden boom/rumble events—often without visible lightning—are called skyquakes.
This page gathers 2021’s clearest clips.
Are these sounds natural or supernatural?
Many recordings line up with natural or human sources: atmospheric ducting, industrial resonance
(rail/refinery), distant thunder, meteors, or earthquakes. Others remain unexplained—and that mystery
keeps the phenomenon interesting.
Why are there so many reports in recent years?
Global quiet periods, changing weather patterns, and the spread of smartphones all play a role.
With more people recording and sharing, strange audio that once stayed local now travels worldwide.
How can I tell an industrial noise from a genuine sky event?
Note direction, duration, repetition, and weather. Record at least one minute of audio, log date/time,
check nearby industry or rail activity and radar, and share details via our contact form.
How do I report a new sound?
Use the report form with location, date/time, a phone recording, and any video. We’ll review and may add it to the 2021 archive.
