M3.6 earthquake 2 km NW of Aline, Oklahoma

A magnitude 3.6 earthquake struck 2 km NW of Aline, Oklahoma on Fri, Jul 17, 2015, 7:30 AM CDT (12:30 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.8 9 km WNW of Medford, Oklahoma. This one was a foreshock.

Map

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

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

4 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event us20002y4p. Read Wed, Sep 23, 2026, 3:50 AM UTC.