MYNORTHWEST NEWS

Powerful Greenwood explosion recorded by earthquake monitor

Mar 9, 2016, 8:27 AM | Updated: 10:14 am

John Vidale with the Pacific Northwest Seismic Network reports a seismometer north of Greenwood Ave...

John Vidale with the Pacific Northwest Seismic Network reports a seismometer north of Greenwood Avenue detected the explosion Wednesday morning. (KIRO 7)

(KIRO 7)

Firefighters pour water as flames burn in the rubble left from an early morning explosion Wednesday, March 9, 2016, in Seattle. The explosion heavily damaged buildings and injured multiple firefighters. A firefighter looks at the smoldering rubble left from an early morning explosion Wednesday, March 9, 2016, in Seattle. The explosion heavily damaged buildings and injured multiple firefighters. A firefighter tosses a piece of debris that had been blown into the street into a pile of rubble left from an early morning explosion Wednesday, March 9, 2016, in Seattle. The explosion heavily damaged buildings and injured multiple firefighters. Broken glass covers the sidewalks near where people peer from across the street at the rubble left from an early morning explosion Wednesday, March 9, 2016, in Seattle. The explosion heavily damaged buildings and injured multiple firefighters. Pedestrians walk by a shop after an early morning explosion nearby Wednesday, March 9, 2016, in Seattle. The explosion heavily damaged buildings and injured several firefighters.

An explosion that rocked Seattle’s Greenwood neighborhood was picked up by a seismometer 250 meters away.

John Vidale with the Pacific Northwest Seismic Network reports the seismometer is located between NW 87th Street and NW 90th Street.

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The seismometer north of the explosion is the only one that seems to have recorded any activity from the explosion. Because no other stations triggered, Vidale believes the explosion that destroyed a Port Orchard mobile home and killed two people last month was stronger. That explosion was caused by a propane leak, and the air wave was picked up by a dozens of seismometers up to 50 miles away.

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Powerful Greenwood explosion recorded by earthquake monitor