Solunars by Aldebaran Sidereal Academy

An earthquake with magnitude 4.5 occurred near Arcadia, OK at 18:10:24.10 UTC on Dec 7, 2013

There've been 63 earthquakes in Oklahoma in the last month. I don't know if that's unusal.
The last three, all today, were:

Epicenter Near Magnitude Distance to Epicenter Local Time
4 mi E of The Village, Oklahoma 3.1 7 mi Sat, 2013-12-07 17:58:19
4 mi SE of Edmond, Oklahoma 2.8 11 mi Sat, 2013-12-07 13:26:29
7 mi ENE of Edmond, Oklahoma 4.5 17 mi Sat, 2013-12-07 12:10:23

It's been just about two years since the 5.6 magnitude quake they had two years ago, which has been linked to injection wells.

Jim Eshelman wrote:

The solar ingresses have little to say other than in the broadest sense. Like much of the country, Oklahoma had Venus-Pluto setting in the Capsolar. The rest of the solar ingress layers really contributed nothing.

This was a minor event, all things considered, and there was not much of an astrological build=-up. But, once the month kicked in, we things start to move - beginning with the Caplunar one day earlier.

Month: Caplunar
Saturn square MC 1°56'

Day: Capsolar Transits & Quotidian
Transiting Uranus square Capsolar Ascendant 0°01'.
Transiting Pluto still just within 2° orb of Descendant.

CapQ MC square i. Saturn 0°47'
CanQ Asc sq. i. Neptune 0°06', op. t. Mercury 1°05'

Day: Cansolar Quotidian
CanQ Ascendant op. i. Uranus 0°57', sq. i. Mercury 0°24'

Hour: Event Chart
Neptune was a few degrees below the Ascendant, squared by Mercury.

This has a concentration of Saturn and Uranus influences of the classic shakeup earthquake, and Neptune at the time of the quake means the main effect was to freak out people just a bit; but the timing of this (for Oklahoma) unusual event is very precise in the lunar and daily charts.