Magnitude 6.8 Earthquake near Longbranch, Washington

Event Summary

This significant seismic event near 7 km SSE of Longbranch, Washington had the potential to cause considerable damage, particularly in populated areas near the epicenter. The Magnitude 6.8 earthquake occurred at a shallow depth of 51.8 kilometers, which would have amplified the ground shaking and influenced how seismic waves propagate through the Earth's crust. Earthquakes of this magnitude can trigger aftershocks, which may continue for days or weeks following the main event. This seismic event was recorded by 67 seismic monitoring stations, providing valuable data for seismologists studying earthquake patterns and tectonic activity. The earthquake's shallow depth classification indicates it originated within the Earth's crust, which would have affected the potential impact on surface structures. The md magnitude type used to measure this event is particularly suited for regional seismic events. This measurement method provided crucial information about the earthquake's energy release and potential impact on surrounding areas.

Safety Information

During an earthquake, remember to Drop, Cover, and Hold On. Stay indoors and take cover under a sturdy table or desk, protecting your head and neck. If you're outside, move to an open area away from buildings, trees, and power lines. After the shaking stops, check for injuries and damage, and be prepared for aftershocks. Residents in the affected area should be aware of potential secondary hazards that are common in your region. Prepare an emergency kit with essential supplies including water, non-perishable food, first aid supplies, flashlight, and batteries. Stay informed by following updates from local authorities and emergency services. Consider submitting a felt report to help seismologists better understand this event's impact.