4.0 magnitude earthquake 38 km from Morton, Washington, United States

1980-04-20 05:04:50 UTC

UTC time: Sunday, April 20, 1980 05:04 AM
Your time: 1980-04-20T05:04:50Z
Magnitude Type: mb
USGS page: M 4.0 - Mount St. Helens area, Washington
USGS status: Reviewed by a seismologist
Reports from the public: 0 people