Earthquakes
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Attention

New Zealand: More Aftershocks Follow Christchurch Earthquake 2011

Debbie Roome
Suite101
Fri, 29 Apr 2011 00:00 UTC
Image
© Debbie RoomeImage of Earthquake Damage to the Basilica in Christchurch 2011
Just after 7am on Saturday 30th April 2011, Christchurch was shaken by a 5.2 aftershock. This was centered 65 kilometers from the city center.

Christchurch continues to experience aftershocks as the national state of emergency in New Zealand draws to a close. As from May, the Christchurch Earthquake Recovery Authority (CERA) will take over the planning and recovery process in the city.
Another Large Aftershock Felt in Christchurch

At 7:08am on Saturday 30th April, Geonet recorded a 5.2 aftershock in the Christchurch region. It released 879 tons of energy and was rated as 6 on the Mercalli scale. This rating describes potential effects as follows: "Felt by everyone. Difficult to stand. Some heavy furniture moved, some plaster falls. Chimneys may be slightly damaged." The motion was somewhat subdued in Christchurch due to the distance but was still obvious as a significant aftershock. Facebook comments within minutes indicated the large area affected and included the following: "Really felt it here in Oxford! Almost felt like September again just shorter. Threw me out of bed! Woke me up in Kaiapoi but I wasn't quite sure if we were having one. Everyone else still asleep. Too tired after staying up late last night to watch the wedding. Felt that in Redwood, so much for a sleep in. Felt that in Belfast - also heard from dad in Rakaia who said his house shook really badly. Felt it in Ashburton. Woke me up with a sudden jolt."

Christchurch experienced five aftershocks in the 24 hours preceding the 5.2 shake. These ranged from a 2.8 to a 3.8.
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Radar

US: 4.3 earthquake measured 84 miles southeast of El Paso

Diana Washington Valdez
El Paso Times
Thu, 28 Apr 2011 11:55 UTC
A 4.3 earthquake shook part of West Texas and Northern Chihuahua late Wednesday, according to the U.S. Geological Survey.

The temblor was centered in the state of Chihuahua about 40 miles south of Fort Hancock, Texas, said Aaron Velasco, a seismologist and chairman of the Geology Department at the University of Texas at El Paso.

UTEP has a seismograph that records seismic activity.

Velasco said the earthquake occurred in an area that includes a valley used for agriculture and some mountains.

The earthquake began just before 11 p.m. on Wednesday and emanated from about 6.2 miles deep in the earth. The region of the epicenter is about 84 miles southeast of El Paso.

Velasco said the shaking took place in a region that does not appear to have a history of significant earthquake activity.

"There was a whole sequence of events," he said. "There was a 4.3 and a 4.1 earthquake and six to seven smaller ones. We're going to study this further."
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Radar

5.4 Magnitude Earthquake Rattles Residents Of Central Indonesia


KWTX
Tue, 26 Apr 2011 00:00 UTC
An earthquake sent residents fleeing in central Indonesia.

An earthquake that hit waters off Indonesia's main island of Java sent panicked residents fleeing from their homes and office buildings.

No tsunami warning was issued, and there were no immediate reports of injuries or damage.

The U.S. Geological Survey says the quake had a preliminary magnitude of 5.4 and hit 88 miles south of Cirebon city.

It was centered nearly 50 miles beneath the ocean floor.

El Shinta radio reported the temblor triggered widespread panic in the nearby town of Garut.

Indonesia is on the Pacific "Ring of Fire," an arc of volcanoes and fault lines encircling the Pacific Basin.
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Bizarro Earth

Quake shakes Acapulco, tourists to streets


Associated Press
Tue, 26 Apr 2011 16:08 UTC
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© Lalate
Acapulco, Mexico - A moderate earthquake shook the Mexican Pacific coast resort of Acapulco on Tuesday, forcing dozens of nervous spring vacationers into the streets. No damages or injuries were reported.

The magnitude-5.7 quake occurred at 6:07 a.m. local time (1107 GMT) and was centered about 30 miles (50 kilometers) northeast of Acapulco, in the state of Guerrero, the U.S. Geological Survey in Colorado reported on its website. It was followed by a magnitude-4.6 replica at 6:18 a.m. (1118 GMT), the agency said.

The quake occurred at a depth of nearly 13 miles (20 kilometers).
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Radar

Series of five tremors off Maltese coast

Chiara Bonello
Malta Independent
Tue, 26 Apr 2011 07:05 UTC
Image
© Malta Tourism Authority
A series of five earth tremors, with the first occurring at around midnight, were felt in various localities in Malta yesterday, as reports of shaking and objects moving on the shelves reached this newspaper.

The first earthquake, of magnitude 3.5, occurred early this morning at around eleven minutes past midnight, about 37 km east of Malta. This was followed by other events at approximately the same location.

The next quake, of magnitude 3.3, occurred at 3:34am, then at 4:44am a third quake of magnitude 2.5 occurred. The next one was at around 6:39am, and of magnitude 3.5 and the final one happened at around 11.30am. Another tremor, the strongest at 4.0 on the richter scale was felt just after 3pm. The tremor was located at a depth of 2km in the sea 25km off Zabbar. It was also felt in Italy.
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Bizarro Earth

Pakistan: 5.0 Magnitude Earthquake Rocks Jammu and Kashmir


The Economic Times
Mon, 25 Apr 2011 05:02 UTC
An earthquake measuring 5.0 on the Richter scale struck Jammu and Kashmir Monday morning. The epicentre of the quake was located in Pakistan, the local disaster management authority said.

"The earthquake was of mild intensity with coordinates measuring 36.23 north and 72.17 east. It struck at 6.25 a.m. Its epicentre lay in Pakistan. No damage has been reported from anywhere so far," said Amir Ali, in-charge of the the disaster management cell at the provincial headquarters here.

It may be mentioned that more than half a dozen earthquakes have rocked the Valley during the last two months. Jammu and Kashmir is located in a highly seismic zone.

More than 40,000 people were killed in a massive quake, measuring 7.9 on the Richter scale, that rocked this state in 2005.
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Bizarro Earth

Strong, shallow earthquake hits eastern Indonesia

Ali Kotarumalos
The Associated Press
Sun, 24 Apr 2011 21:20 UTC
A strong and shallow earthquake hit eastern Indonesia early Monday, sending residents, hotels guests and patients from a hospital fleeing in panic. Some homes were damaged, with windows shattered and walls cracked, but there were no immediate reports of injuries.

The U.S. Geological Survey said the magnitude-6.2 quake was centered 45 miles (75 kilometers) southeast of Kendari, a town on Sulawesi island, at a depth of just 6 miles (9 kilometers). It was followed by three strong aftershocks.

Andre Wijaya, a geological official in Kendari, said the earth shook violently beneath his feet.

"Women and children were screaming as they ran from their homes and into nearby fields," said Lt. Laode Surachman, a police officer in Kendari, adding that hotels emptied out and patients in a hospital were evacuated to safety. "Even officers taking part in morning roll call scattered and fled."

Indonesia straddles a series of fault lines that make the vast island nation prone to volcanic and seismic activity.

A giant quake off the country on Dec. 26, 2004, triggered a tsunami in the Indian Ocean that killed 230,000 people, half of them in Indonesia's westernmost province of Aceh.
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Bizarro Earth

Indonesia - Earthquake Magnitude 6.2 - Sulawesi


USGS
Sun, 24 Apr 2011 20:34 UTC
Indon Quake_240411
© USGSEarthquake Location
Date-Time:
Sunday, April 24, 2011 at 23:07:51 UTC

Monday, April 25, 2011 at 07:07:51 AM at epicenter

Time of Earthquake in other Time Zones

Location:
4.593°S, 122.808°E

Depth:
9.4 km (5.8 miles)

Region:
SULAWESI, INDONESIA

Distances:
75 km (46 miles) SSE of Kendari, Sulawesi, Indonesia

99 km (61 miles) NNE of Baubau, Sulawesi, Indonesia

534 km (331 miles) NW of DILI, Timor-Leste

1240 km (770 miles) NW of DARWIN, Northern Territory, Australia
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Info

US: Preliminary magnitude-3.1 quake rumbles in Arkansas


News Channel 10
Sat, 23 Apr 2011 10:05 UTC
The U.S. Geological Survey has recorded a preliminary magnitude-3.1 earthquake near Greenbrier in central Arkansas.

The quake was recorded at 7:20 a.m. Saturday three miles northeast of Greenbrier - about 35 miles north of Little Rock. Greenbrier police say there weren't any reports of injuries or damage. A magnitude-2.2 quake was recorded in the same area 20 minutes later.

Seismologists have recorded some 1,000 quakes in the region since September - including a magnitude 4.7 in February that was the strongest earthquake recorded in Arkansas in 35 years.

The latest quakes come after two natural gas exploration companies - Oklahoma City-based Chesapeake Energy Corp. and Clarita Operating LLC - agreed this week to keep two nearby injection wells shutdown as researchers study whether the operations are linked to the quakes.

Source: The Associated Press
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Attention

US, California: 3.6 Earthquake Shakes East County


10 News
Sat, 23 Apr 2011 04:34 UTC
Quake Centered Near Vallecito, About 16 Miles East-Southeast Of Julian

A magnitude 3.6 earthquake shook eastern San Diego County on Saturday, according to automated seismographs and computers operated by the U.S. Geological Survey.

The quake was centered near the village of Vallecito, about 16 miles east-southeast of Julian, or about 50 miles east-northeast of downtown San Diego. It hit at 1:49 p.m.

The quake was in a seismically-active valley along the Great Southern Overland Stage Route Of 1849, a bit northwest of the cluster of thousands of aftershocks from last year's magnitude 7.2 Mexicali earthquake.
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