M2.5 earthquake 12 km WSW of Packwood, Washington

A magnitude 2.5 earthquake struck 12 km WSW of Packwood, Washington on Sun, Oct 3, 1999, 3:50 AM PDT (10:50 UTC), 3 km (2 mi) below the surface.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.5	Md, duration	Pacific Northwest Seismic Network	Preferred · Final · ±0.03 · 11 stations
2.5	Md, duration	USGS National Earthquake Information Center	Reviewed

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 6 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event uw10476478 (also filed as usp0009fcq). Read Fri, Oct 2, 2026, 2:50 AM UTC.