House explosion rocks seismometers across Puget Sound

Debris from the blast could be seen 80 feet up in the trees.

A house explosion was so strong in Port Orchard, that not only did it kill two people and cause collateral damage to surrounding homes and a school, but it rocked seismometers across the Puget Sound.

Pacific Northwest Seismic Network tweeted images of seismic activity from air waves, not ground vibrations.

The explosion happened in the 3500 block of Soholt Lane near Port Orchard shortly after 4 a.m. Tuesday. Debris from the blast could be seen 80 feet up in the trees. See photos from the scene here. 

Kitsap County Sheriff Scott Wilson said the home was a triple-wide manufactured home.

Fire officials said they have requested an assistant from the Bureau of Alcohol, Tobacco, Firearms and Explosives to help with the investigation.

Wilson said there were reports of collateral damage to other homes in the area. Windows at Mullenix Ridge Elementary were shattered, but school is in session as usual.

KIRO 7 Facebook users across Kitsap County and beyond have been posting descriptions of what they felt.

"There was a huge explosion at 4:09 a.m. that shook homes, woke residents in the Olalla-Gig Harbor area early this morning," said KIRO 7 Facebook user Anne Wolfe Ehrhardt.

Viewers as far away as Renton and Covington reported feeling the explosion.

RAW VIDEO: Chopper 7 is over the scene of an early morning home explosion near Port Orchard. Part of the home landed 80 feet up a tree. Slideshow: http://kiro.tv/ExplosionPhotos

Posted by KIRO 7 News on Tuesday, February 23, 2016

Another viewer messaged the KIRO 7 Facebook page with photos.

"Shook my house knocked stuff off the walls and I thought some of the windows broke, but the windows are fine. People are reporting damage to the homes that are closer to the explosion. I thought it was an earthquake at first @ 4:08AM," said Facebook user Becky Carpenter.

Investigators are still determining the cause of the explosion.