Earthquakes
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Bizarro Earth

Biggest Ever Oklahoma Quake Damages Buildings and Roads

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Oklahoma has been shaken by a series of earthquakes, culminating in a 5.6 magnitude quake that is the state's biggest on record.
Homes damaged and roads buckled by series of shocks including the biggest on record in US state

Earthquakes of up to 5.6 magnitude have shaken Oklahoma, damaging buildings and roads and sending a handful of people to hospital.

The first quake was recorded on Saturday morning at a magnitude of 4.7. The second came on Saturday night and is the largest ever recorded in Oklahoma, topping a tremor of 5.5 magnitude in 1952, according to the US Geological Survey.

In Prague, Oklahoma, where the first quake was centred, city manager Jim Greff said part of the town library's ceiling collapsed and a chimney fell through the roof of a home. There were no serious injuries.

Comment: SOTT wonders, of course, if all of the recent storm/earthquake/volcanic activity has anything to do with the close passage of the debris field of Comet Elenin as well as the presence of other comets/bodies in the solar system? Perhaps it is time to revisit the Electric Universe theory?


Bizarro Earth

US: Oklahoma: Earthquake Magnitude 5.6 Follows Earlier 4.7 Magnitude Earthquake

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© USGS
Date-Time:
Sunday, November 06, 2011 at 03:53:10 UTC

Saturday, November 05, 2011 at 10:53:10 PM at epicenter

Time of Earthquake in other Time Zones

Location:
35.599°N, 96.751°W

Depth:
5 km (3.1 miles)

Region:
OKLAHOMA

Distances:
34 km (21 miles) NNE of Shawnee, Oklahoma

63 km (39 miles) SSE of Stillwater, Oklahoma

68 km (42 miles) ESE of Guthrie, Oklahoma

71 km (44 miles) ENE of OKLAHOMA CITY, Oklahoma

Evil Rays

US: Earthquake, aftershocks, rumbling felt across Oklahoma, region

Multiple earthquakes shook much of central Oklahoma early Saturday, rousing people from their sleep. It was felt as far away as Pleasant Hill, Mo.

A 4.7 magnitude earthquake rattled homes across central Oklahoma early Saturday.

The U.S. Geological Survey said the initial quake was centered about six miles north of Prague about 2:12 a.m.

That quake was followed by a series of aftershocks. A 3.4 magnitude aftershock was felt moments later followed by another 2.7 magnitude aftershock about five miles southeast of Sparks. Sparks is east of the metro area in Lincoln County.

And those aftershocks continued as a 3.6 magnitude quake struck about 8:36 a.m., also centered about two miles southeast of Sparks.

The National Weather Service in Norman said via its Facebook page the earthquake was felt in Norman and also as far away as weather offices in Topeka, Kan., and Pleasant Hill, Mo.

Radar

US: 4.7 Magnitude Earthquake Shakes Central Oklahoma

Earthquake
© redOrbit
At least a couple of aftershocks have been confirmed following a 4.7-magnitude earthquake in central Oklahoma on Saturday morning, according to the United States Geological Survey.

The latest aftershock came at 2:44 a.m. and was a 2.7-magnitude quake, according to the USGS website .

The epicenter of the initial quake was about 6 miles north of Prague, 7 miles east-southeast of Sparks, 9 miles west-northwest of Paden or roughly 20 miles northeast of Oklahoma City. The first aftershock happened in the same area, according to the United States National Weather Service office in Norman, which posted this message to Facebook at about 3 a.m.

Radar

US, Virginia: Six Hundred Aftershocks and Still Shaking

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© Getty Images
2.3 magnitude aftershock Thursday

Needles at the U.S. Geological Survey jumped again on Thursday morning, when a 2.3 magnitude aftershock rattled Louisa County.

Geological Survey staffers said in a lecture this week they've actually recorded over 600 aftershocks following the August 23 quake.

Staff geologist and Mineral, Virginia resident Mark Carter lectured on the Virginia quake's aftershocks on November 2 in Fairfax. The lecture was also shared via the USGS twitter feed.

The geologist said that in central Virginia, seismic activity is "somewhat regular." However, the strength of the August 23 quake had not been seen in a century, and the damage has been unprecedented.

"It was a miracle that there were no casualties given the damage we found," he wrote.

Radar

Earthquake Magnitude 5.7 - Antofagasta, Chile

Image
© USGS
Date-Time

Saturday, November 05, 2011 at 07:13:57 UTC
Saturday, November 05, 2011 at 04:13:57 AM at epicenter

Time of Earthquake in other Time Zones

Location 23.529°S, 70.400°W

Depth 27.3 km (17.0 miles)

Region ANTOFAGASTA, CHILE

Distances 22 km (13 miles) NNE of Antofagasta, Antofagasta, Chile

154 km (95 miles) S of Tocopilla, Antofagasta, Chile

177 km (109 miles) SW of Calama, Antofagasta, Chile

1106 km (687 miles) N of SANTIAGO, Region Metropolitana, Chile

Radar

Earthquake Magnitude 5.8 - Vanuatu

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© USGS
Date-Time

Saturday, November 05, 2011 at 01:49:19 UTC
Saturday, November 05, 2011 at 12:49:19 PM at epicenter

Time of Earthquake in other Time Zones

Location 18.293°S, 168.309°E
Depth 39.5 km (24.5 miles)

Region VANUATU

Distances
61 km (37 miles) S of PORT-VILA, Efate, Vanuatu

172 km (106 miles) NW of Isangel, Tanna, Vanuatu

328 km (203 miles) SSE of Luganville, Espiritu Santo, Vanuatu

1869 km (1161 miles) ENE of BRISBANE, Queensland, Australia

Bizarro Earth

Sea boils near El Hierro: submarine volcanic activity continues off El Hierro Island

A 3.8 magnitude earthquake occurred at 13.41 hours, in latitude 27.7886, longitude -18.0469 with an estimated depth of 21 kilometers, in line with those that occurred during late Thursday night and Friday morning. In this way, and during the day Friday, El Hierro has produced a total of 24 earthquakes- the 3.8 that has been the strongest. Fear of new and powerful earthquakes continues to spread in El Hierro. This morning, the island has recorded twelve new earthquakes, which have ranged from 2 to 3 degrees of intensity, as reported Canarias 7 citing National Geographic Institute.


Meanwhile, on Thursday, the direction of Civil Protection Plan for Volcanic Risk said Border seismic events correspond to the stage of La Restinga underwater eruption, which began on 10 October. Specifically, there have been twelve new earthquakes that have had an intensity of 2 to 3 degrees as reported by sources of IGN Canarias 7 newspaper. On Thursday, officials of the Civil Protection Plan for Volcanic Risk assured the public that the latest seismic events, which have intensified in recent days, corresponds to the scene of the submarine eruption of La Restinga, which began on 10 October.

Powertool

Fracking Linked To Earthquakes In The U.S.

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© Unknown
On the heels of yesterday's report detailing Cuadrilla Resource's admission that their fracking practices were responsible for small earthquakes in the U.K., new reports are surfacing that link fracking to earthquakes that occurred in January in Oklahoma. According to a new study by the Oklahoma Geological Survey [PDF], fracking is linked to 50 mini-earthquakes that occurred on January 18, 2011 in Oklahoma.

The NRDC describes the events as follows:
The occurrence of so-called "induced seismicity" - seismic activity caused by human actions - in conjunction with fluid injection or extraction operations is a well-documented phenomenon. However, induced earthquakes large enough to be felt at the surface have typically been associated with large scale injection or withdrawal of fluids, such as water injection wells, geothermal energy production, and oil and gas production. It was generally thought that the risk of inducing large earthquakes through hydraulic fracturing was very low, because of the comparatively small volumes of fluid injected and relatively short time-frame over which it occurs. As the controversy over hydraulic fracturing has heated up, however, researchers and the public have become increasingly interested in the potential for fracking to cause large earthquakes.

Bizarro Earth

Chile coastline under seismic assault from new tension along Nazca plate

A series of moderate earthquakes have rippled up and down the northern coastline of Chile over the last 24 hours. The strongest of the 4 earthquakes erupting today was a 5.2 magnitude earthquake that struck near the coastal region of Antofagasta. The earthquakes are an indication of mounting tension on the Nazca plate that has been exacerbated by recent quakes on the neighboring Cocos plate in Costa Rica and Revilla Gigedo Islands.

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© USGS