watch the video here:
Original stories linked here:
Here is an update on the situation in Ohio.
The location of the earthquake has been moved, as well as the magnitude elevated to a 4.3 (from a 4.0).. and the depth has been changed to be 3.1 miles deep.
- This event has been reviewed by a seismologist.
|Depth||5 km (3.1 miles) (poorly constrained)|
|Region||YOUNGSTOWN-WARREN URBAN AREA, OHIO|
Officially, according to the USGS — this was a “FRAC well” quake — injection pumping caused this movement..
Here is a screenshot of the “new” epicenter — also located at a steel plant / old quarry area:
4.0 Magnitude Earthquake Strikes Near YoungstownSaturday December 31, 2011 3:44 PM
UPDATED: Saturday December 31, 2011 4:03 PM
McDONALD, Ohio – Authorities said that a minor earthquake hit in northeast Ohio.
The U.S. Geological Survey said that the 4.0 magnitude quake struck Saturday afternoon in McDonald, outside of Youngstown.
There were no immediate reports of damage. One witness about 20 miles from the epicenter said that she saw the ornaments shake on her Christmas tree. Others said that it was strong enough to panic pets and send relatives running for cover.
It was the latest in a series of minor quakes in the area in 2011, though residents said that Saturday’s appeared to be stronger than others.
Many have struck near an injection well used to dispose of brine water that is a byproduct of oil and gas drilling.
The injection well owner agreed this week to stop injecting brine into the earth while the quakes are investigated.
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