Oklahoma earthquakes

M4.7 earthquake 4 km SW of Lambert, Oklahoma

A magnitude 4.7 earthquake struck 4 km SW of Lambert, Oklahoma on Thu, Nov 19, 2015, 1:42 AM CST (07:42 UTC), 6 km (4 mi) below the surface.

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Map

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

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The earthquake

Magnitude: 4.7 (mwr), light
Local time: Thu, Nov 19, 2015, 1:42 AM CST
UTC: 2015-11-19 07:42:12 UTC
Depth: 5.9 km (3.7 mi), shallow
Epicenter: 36.660° N, 98.459° W
Region: Oklahoma
Felt reports: 5,355
Strongest shaking: VII, very strong shaking
PAGER alert: Green
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

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

Strongest estimated: VII, very strong shaking
Peak ground acceleration: 52.2% of gravity
Peak ground velocity: 2.8 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

5,355 people reported to the USGS what they felt; the strongest reported shaking was VII, very strong shaking.

Estimated impact

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

Alert level: Green: little or no damage or loss of life expected

Fault motion and ground failure

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

Faulting: Strike-slip
Moment magnitude: 4.7 Mwr
Nodal plane 1: Strike 124°, dip 86°, rake -22°
Nodal plane 2: Strike 216°, dip 68°, rake -176°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 3.0 km horizontally, 4.2 km in depth
Magnitude uncertainty: ±0.04
Station coverage gap: 116°
Stations used: 0

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: at least 199 in the 60 days after this one and at least 199 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Oklahoma earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10003zgz (also filed as gcmt20151119074212, atlas20151119074212). Read Mon, Sep 28, 2026, 12:29 AM UTC.