Mysterious boom shakes houses and alarms residents in St. Helens, Oregon


A mysterious sound resembling a thunderous explosion was heard around 8 p.m. on June 25 in the St. Helens area.

Curious citizens flooded social media with questions about the origin of the loud boom that some said shook homes and rattled windows.

mysterious boom st helens oregon, mysterious boom june 2017, mystery booms st helens oregon loud booms st helens oregon, latest boom reports, latest exploion june 2017
Mysterious explosion shakes homes and alarms people in St. Helens (Oregon), near the Columbia River on June 25, 2017. via The Chronicle Online

According to St. Helens Police Chief Terry Moss, the first reports of the sound came in at 8:22 p.m. Moss said his department fielded 11 calls regarding the boom, mainly from residents on the west side of town.

The cause of the sound has not been determined. Moss said this time of year is marked by frequent firework and “loud boom” reports. Without more definitive information, Moss said the matter would be considered closed.

There was a viral reaction to the sound on Facebook, where reports of the boom were contentiously debated and numerous theories were offered. Everything from jet sonic booms to rock quarry blasting to North Korean missile testing and even more outlandish ideas were suggested. Some people heard nothing at all.

Many Facebook users suspected a modified firework or homemade bomb, but without evidence the citizen investigation made little progress. Anyone with information about the source of the sound should contact St. Helens Police Department.

The mysterious booms start shaing homes again… This time in Oregon.

Follow us: Facebook and Twitter


  1. I live in Saint Helens and heard the boom on Saturday. It was LOUD and shook our house. I went out to the back deck and saw no evidence – fire, smoke, etc of anything that may have caused it. I know it was NOT a gunshot and NOT standard fireworks. It was much more powerful. The picture of Mt. St. Helens in the article is a little misleading. The mountain is across the river in Washington state, about 60-70 miles from the town of St. Helens in Oregon.

Leave a reply

Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.