The Earthquake/Seismic Activity Log

A magnitude 4.0 quake jolted the Bay Area Thursday at 2:41 p.m., only hours after millions of California residents had participated in one of the biggest earthquake drills in history.

The quake initially measured as a magnitude 3.9 earthquake, but the USGS later revised the measurement to magnitude 4.0.

The epicenter of the quake hit two miles east-southeast of Berkeley, according to the U.S. Geological Survey.
The temblor created a large jolt in San Francisco's Civic Center area and was felt in parts of the region including Alamo.

There were no immediate reports of damages.

An aftershock measuring magnitude 1.8 struck the same epicenter at 3: 09 p.m.

The jolt was felt almost 22 years to the day after the Loma Prieta earthquake struck the Bay Area during the 1989 World Series. And it occurred on the same day that more than 8.5 million people signed up to participate in an annual earthquake drill in which people duck under desks and tables.

All BART trains were halted or slowed due to the earthquake, a BART employee said.

Trains systemwide are stopped or are traveling slowly as train operators conduct track inspections, the employee said.

BART did not have an estimate for when the trains would resume normal operations.

http://www.ktvu.com/news/29543713/detail.html

BERKELEY, Calif. -- Two earthquakes hit the San Francisco area Thursday, jolting residents on the same day many Californians took part in an annual earthquake preparedness drill.

A quake with a preliminary magnitude of 3.8 struck in Berkeley at 8:16 p.m. PDT, the U.S. Geological Survey said.
Thursday night's quake came nearly six hours after a magnitude 4.0 earthquake hit in the same area.

Berkeley police said there were no reports of damage or injuries from either quake.

Officials at Bay Area Rapid Transit said the system's trains Thursday night were experiencing minor delays as workers inspected tracks, a routine procedure after an earthquake.

Officials at Caltrain said none of its trains was delayed.

The second temblor was strong enough to knock photographs off the wall and glasses onto the floor at the home of Diane Coppini, who lives in nearby Emeryville...

http://www.ktvu.com/news/29546234/detail.html

HigherLove wrote:Dozens dead as quake shakes eastern Turkey

Desperate survivors dug into the rubble with their bare hands, trying to rescue the trapped and injured

http://www.msnbc.msn.com/id/45005013/ns/world_news-europe/?gt1=43001

HigherLove wrote:May 5, 2011:

Turkey is past due, and their big quakes tend to travel east to west, leaving Istanbul in the danger zone.

http://en.wikipedia.org/wiki/Geology_of_Turkey

HigherLove wrote:On top of things, as usual.

I took a break from my last post and told Gregg that there would be more here when I got back. :)

Odd thing that I find comfort in the posts of strangers when it comes to this stuff.

It may be unrelated, but I slept all day yesterday, and right on into the night. My dreams were intense this morning, and I woke with a pounding headache at what now appears to be about the time of this latest tragedy.

I was trying to find my mother...it has been eleven years. I feel so sad this morning; it is as if I just found out.

PEACE TO ALL

"If you can't be with the one you love, love the one you're with".

Backgrounder: Major earthquakes in Turkey since 1999

ANKARA, Oct. 23 (Xinhua) -- An earthquake measuring 7.2 on the Richter scale jolted southeastern Turkey on Sunday, killing up to 1,000 people. The Turkish authorities have not released the death toll so far.

Turkey, lying atop the North Anatolian fault, has been plagued by earthquakes frequently. Following is a list of some major earthquakes in Turkey since 1999.

On Aug. 17, 1999, two powerful earthquakes, measuring 6.7 and 7. 4 on the Richter scale respectively, hit northwestern and western Turkey, killing about 18,000 people and affecting hundreds of thousands of others.

On May 1, 2003, at least 167 were killed and over 500 others injured when a quake measuring 6.4 on the Richter scale hit Turkey 's eastern province of Bingol.

On March 26, 2004, a 5.1-magnitude quake jolted eastern Turkey, leaving at least 9 dead and 46 others injured. Another quake measuring 5.3 on the Richter scale in the same region injured 12 people on March 28.

On March 12, 2005, an earthquake measuring 5.7 on the Richter scale jolted Turkey's eastern province of Bingol. No casualties were reported.

On Oct. 24, 2006, an earthquake measuring 5.2 on the Richter scale jolted northwestern Turkey, but caused no casualties or serious damage.

On Feb. 21, 2007, a 5.9-magnitude earthquake jolted eastern Turkey, causing slight damage but no casualties.

On Dec. 20, 2007, a 5.5-magnitude earthquake shook Bala town, but caused no casualties. On Dec. 27, another quake hit the Turkish capital of Ankara, damaging 945 buildings.

On Sep.3, 2008, a 5.1-magnitude earthquake shook southeastern Turkey, damaging some houses in the region. No casualties were reported.

On Dec. 22, 2009, an earthquake measuring 5.4 on the Richter scale shook Turkey's Mediterranean region, damaging some buildings.

On March 8, 2010, a 6.0-magnitude earthquake hit Elazig province in eastern Turkey, killing at least 38 people and injuring dozens of others.

http://news.xinhuanet.com/english2010/world/2011-10/23/c_122188551.htm

lindabaker wrote:Carol, Troy, we are all feeling the extremes of emotion, I think. The sadness is part of it, the releasing. Then the giddiness, like they are feeling in India. We are going back and forth, back and forth, with high peaks and low valleys, emotionally. The polarity is kinetic and it is really whipping it up now. Did you hear (sorry, off subject) about the Mayan medicine people and the 13 crystal skulls and the journey from new york to LA this week? I will find a link. The shift of the ages is upon us...October 28 is the date Calleman said would be the alignment with galactic center...here we go!

Understanding the 7.2 magnitude earthquake in East Turkey (October 23, 2011)

Tectonic explanation of what happened

Turkey is a tectonically active country that experiences frequent destructive earthquakes. On a broad scale, the seismtectonics of the region near the October 23, 2011 earthquake are controlled by the collision of the Arabian Plate and Eurasian plates; at the latitude of this event, the Arabian plate converges with Eurasia in a northerly direction at a rate of approximately 24 mm/yr. West of the October 23, 2011, earthquake tectonics are dominated by strike-slip faulting on the East (in southern Turkey) and North (in northern Turkey) Anatolian fault zones. These large, translational fault systems extend across much of central and western Turkey and accommodate the western motion of the Anatolian block as it is being squeezed by the converging Arabian and Eurasian plates.

http://earthquake-report.com/2011/10/24/understanding-the-7-2-magnitude-earthquake-in-east-turkey-october-23-2011/

Magnitude 4.7 earthquake hits Northern California, USA
http://earthquake-report.com/2011/10/27/magnitude-5-2-earthquake-hits-northern-california-usa/

San Juan: shaking for about 10 seconds. dishes rattling. we are at 2,800 ft elevation and earthquakes are usually non-existent here