Earthquake overview : 5 minutes to midnight a strong shallow earthquake struck at close distance from King City, California. The earthquake was felt in a wide area.
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Update 15:46 UTC : So far the area has been hit by 5 aftershoks ranging from M2.5 to M3.5
Update 15:30 UTC : Until now, good news, as we have heard nothing about damages or injuries.
Update : – The population in this region resides in structures that are highly resistant to earthquake shaking, though some vulnerable structures exist.
- Recent earthquakes in this area have caused secondary hazards such as landslides and liquefaction that might have contributed to losses
Update : The people living in King City and Greenfield are expected to have felt a moderate shaking or MMI V
29000 people will have felt a moderate shaking
194000 people a light MMI IV shaking
1.73 million people a weak to very weak shaking
Update : There are NO reports of damage
Update : The epicenter has been set at 26 km from King City, the closest significant community. The area is mainly a wilderness area.
Update : Epicenter below a wilderness area near State route 198. Closest community King City (based on preliminary data)
The earthquake occurred at 11:55 local time.

Shaking map courtesy USGS
A rather strong earthquake just occurred 60 km east of Monterey, California
Closest cities Soledad and Coalinga. In a broader view in between Monterey and Fresno, California
The preliminary Magnitude of M5.5 has been weakened to M5.1. Normally a M5.3 in California at a depth of 9.4 km may only lead to minor damage like fallen objects, cracks in walls, etc.
This is the strongest earthquake in many months in this part of California.
Most important Earthquake Data:
Magnitude : M5.3
UTC Time : 2012-10-21 06:55:09 UTC
Local time at epicenter : 2012-10-20 23:55:09 UTC-07:00 at epicenter
Depth (Hypocenter) : 9.4 km
Geo-location(s) :
26km (16mi) ENE of King City, California
34km (21mi) E of Greenfield, California
48km (30mi) WNW of Coalinga, California
Links to important maps
USGS Did You Feel It Map
Google satellite map showing the epicenter and the surrounding area
Historic earthquakes map
Shaking map
Scientific parameters
Human impact map
Click here for examples of our “earthquake notifications (button below)”
| SRC | Location | UTC Date/time | M | D | INFORMATION | |
| USGS | Baja California, Mexico | Oct 21 23:47 PM | 3.2 | 10 | MAP I Felt It | |
| USGS | Offshore Northern California | Oct 21 23:03 PM | 2.8 | 19 | MAP I Felt It | |
| USGS | Northern California | Oct 21 20:40 PM | 3.6 | 21 | MAP I Felt It | |
| USGS | Central California | Oct 21 15:21 PM | 2.8 | 9 | MAP I Felt It | |
| USGS | Central California | Oct 21 07:51 AM | 3.3 | 9 | MAP I Felt It | |
| USGS | Central California | Oct 21 07:41 AM | 2.5 | 10 | MAP I Felt It | |
| USGS | Central California | Oct 21 07:37 AM | 3.6 | 9 | MAP I Felt It | |
| USGS | Central California | Oct 21 07:18 AM | 3.1 | 8 | MAP I Felt It | |
| GEOFON | Central California | Oct 21 06:55 AM | 5.3 | 10 | MAP I Felt It | |
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| EMSC | Central California | Oct 21 06:55 AM | 5.2 | 10 | MAP I Felt It | |
| USGS | Central California | Oct 21 06:55 AM | 5.3 | 9 | MAP I Felt It | |
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Sat. 10/20/12 close to 12a.m., we heart a loud boom, a huge jolt hit, then the windows shook and pictures moved, not lasting more than 10-20 seconds. We live N.W. of Lemoore in the country. I believe, without a doubt, that Fracking taking place inbetween Monterey counties and the Central Valley (in close proximities to the San Andreas Fault), absolutely play into all the quakes. Wake up California!
We reside N.W. of Lemoore in the country, approximately 2miles to the back entrance of NASL. 30 miles S.W. of Fresno, while we were watching a movie in bed we felt a huge jolt to the house and a loud boom. The windows rattled, the walls and pictures shook, and then we felt the shifting of the earth beneath the house. I continued to feel aftershocks after the initial quake for 10-20 seconds. An area close to the San Andreas fault line, Fracking is taking place, inbetween Monterey, Monterey county and the Central Valley. In fact, it is happening throughout California. Without a doubt, I also contribute Fracking is a huge factor as to the number of earthquakes California is experiencing, as well as other states were Fracking continues. Wake up California, ban Fracking!
Keri,
In some states and areas fracking is the origin of earthquakes. In the current earthquake this is simply a faulting generated earthquake. Additionally fracking is only responsible for minor earthquakes so far.
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