Earthquakes
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Seismograph

Shallow 'severe' 5.8 magnitude earthquake strikes off New Zealand; part of aftershock sequence

New Zealand earthquake
© GeoNetThe quake was centred 75km out to sea off Te Araroa
This morning's big earthquake off the coast off the East Cape coast is an aftershock of the 7.1 quake that hit a month ago, a GNS seismologist says.

The shallow, 5.8-magnitude earthquake struck about 75km out to sea off Te Araroa, at 8.41am. It was at a depth of 7km.

The quake, rated 'severe' by GeoNet, was widely felt along the North Island's east coast and as far north as Kerikeri, with a scattering of reports in the South Island as well.

Two smaller tremors followed - of 3.1 and 2.8 - centred 20km and 15km from Te Araroa.

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Shallow 5.6 magnitude earthquake recorded off the Mariana Islands

Chart
© Reuters
5.6 magnitude earthquake

2016-10-08 18:10:13 UTC

UTC time: Saturday, October 08, 2016 18:10 PM

Your time: 2016-10-08T18:10:13Z

Magnitude Type: mb

USGS page: M 5.6 - 180km NE of Agrihan, Northern Mariana Islands

USGS status: Reviewed by a seismologist

Reports from the public: 0 people

2016-10-08 18:10:13 UTC 5.6 magnitude, 10 km depth

Mariana Islands

Seismograph

Shallow 5.7 earthquake hits off southeast Taiwan

Chart
© Reuters
A shallow 5.7-magnitude earthquake struck off the southeast coast of Taiwan late Thursday, seismologists said, but there were no immediate reports of major damage.

The quake hit 34 kilometres (21 miles) east-southeast of Taitung City at 11:52 pm (1552 GMT), the US Geological Survey said.

Taiwan's Central Weather Bureau measured it at a stronger 6.0 magnitude at a depth of 20 kilometres.

The quake caused short power outages and toppled goods from shop shelves, photographs posted on the Central News Agency website showed, but there were no reports of major damage.

Taiwan lies near the junction of two tectonic plates and is regularly hit by earthquakes.

A 6.4-magnitude earthquake in February left 117 dead when an apartment complex collapsed in the southern city of Tainan.

Source: AFP

Bizarro Earth

Newly discovered fault line running parallel to San Andreas in Southern California raises fears of 'the big one'

Salton Trough Fault
The new Salton Trough Fault, which runs parallel to the San Andreas Fault, could impact the earthquake-prone region that includes the greater LA area, seismologists say. It is in an area where a swarm of nearly 200 small earthquakes hit last week, raising concerns they might trigger a larger earthquake on the southern San Andreas Fault.

Researchers have revealed a newly discovered fault line running parallel to the San Andreas fault in Southern California.

The new Salton Trough Fault, which runs parallel to the San Andreas Fault, could impact current seismic hazard models in the earthquake-prone region that includes the greater Los Angeles area, seismologists say.

The newly identified strike-slip fault within the Salton Sea, just west of the San Andreas Fault, is in an area where a swarm of nearly 200 small earthquakes hit last week, raising concerns they might trigger a larger earthquake on the southern San Andreas Fault.


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3.5 magnitude earthquake hits Pawnee, Oklahoma; site of last months record-setting temblor

Graph
© Dimas Ardian, Getty Images
A 3.5-magnitude earthquake struck northern Oklahoma on Tuesday morning, hitting the same spot where a record-setting temblor was centered a month ago.

The U.S. Geological Survey says Tuesday's earthquake hit shortly after 4 a.m. with an epicenter about 10 miles northwest of Pawnee, or about 75 miles northeast of Oklahoma City. There are no reports of damage or injury.

On Sept. 3, Oklahoma's strongest earthquake on record struck Pawnee and was felt widely throughout the central United States. Scientists later said the 5.8-magnitude quake led to the discovery of a new fault line, leading to worries that oil and gas production could trigger more powerful earthquakes.

Scientists have linked Oklahoma's sharp increase in earthquakes in recent years to the underground injection of wastewater during oil and gas production.

Comment: 5.6 magnitude earthquake, strongest in state history, rattles Oklahoma early Saturday - revised to 5.8! (UPDATE)


Seismograph

Fears of Teide volcano eruption after 'abnormal' earthquake swarm hits Tenerife

Tenerife earthquake swarm
© INVOLCAN92 microquakes were recorded in Adeje and Vilaflor in the space of four hours on Sunday October 2

FEARS are mounting that a huge volcano on the island of Tenerife could erupt after nearly 100 mini earthquakes were reported in FOUR HOURS in the region


The Volcanology Institute of the Canary Islands (Involcan) reported a significant spike in seismic activity on Sunday afternoon.

Some 92 microquakes were recorded in Adeje and Vilaflor in the space of four hours, with one measuring more than 1.5 on the Richter scale.

The majority of the quakes took place between 7 and 13km below ground sparking fears Mount Teide could be about to blow.

Involcan has sent teams to the area to measure the amount of carbon dioxide in the atmosphere following the quakes, which they described as a "seismic swarm" which is "abnormal" for the region.

An increase in carbon dioxide is said to be an early indicator of volcanic earthquake activity that can precede an eruption.

Involcan said in a statement: "We are registering an important seismic rally on the island of Tenerife.

"In principle, these earthquakes are very low magnitude, consistent with those that occur in active volcanoes.

"The number of earthquakes is provisional pending the analysis of the signals more closely, but we can qualify this activity as a seismic swarm whose pattern is an alignment with prevailing direction northeast to southwest ".

Seismograph

Shallow 5.7 magnitude earthquake recorded off Ilocos, Philippines

Graph
© Dimas Ardian, Getty Images
5.7 magnitude earthquake 4 km from Balingasay, Ilocos, Philippines
about 5 hours ago

UTC time: Sunday, October 02, 2016 13:40 PM

Your time: Sunday, October 2 2016 2:40 PM

Magnitude Type: mb

USGS page: M 5.7 - 11km WNW of Balingasay, Philippines

USGS status: Reviewed by a seismologist

Reports from the public: 19 people

about 5 hours ago 5.7 magnitude, 10 km depth

Balingasay, Ilocos, Philippines

Seismograph

Southern California under heightened earthquake alert

Salton Sea
A series of small temblors occurred deep under the Salton Sea

Southern California residents should remain on heightened alert until Tuesday for the increased possibility of a major earthquake, officials said.

The warning by the Governor's Office of Emergency Services follows a series of small temblors deep under the Salton Sea, which is located on the 800-mile-long San Andreas fault, the Orange County Register reported Saturday.

Such warnings are typically issued once or twice a year, said Kelly Huston, the deputy director of criss communications for the Governor's Office of Emergency Services.

The latest alert was issued after 142 temblors hit starting Monday near Bombay Beach at the southern end of the fault. Those quakes ranged from a magnitude of 1.4 to 4.3, the U.S. Geological Survey said.

Seismograph

USGS: Alaska hit by 5.2 magnitude earthquake

Alaska
© Flickr/ Joseph

An earthquake measuring 5.2 on the Richter scale struck off the Alaskan coast on Sunday, the US Geological Survey (USGS) reported.

The quake occurred at 22:07 GMT on Saturday at a depth of 20.9 kilometers (about 13 miles), 236 kilometers (147 miles) south of False Pass, a city in the Aleutian Islands, Alaska, according to the USGS. No information on casualties or damage from the quake has been provided yet.

Seismograph

Shallow 5.2 magnitude earthquake recorded off the Azores

Graph
© Dimas Ardian, Getty Images
5.2 magnitude earthquake

about 5 hours ago

UTC time: Saturday, October 01, 2016 13:17 PM

Your time: Saturday, October 1 2016 2:17 PM

Magnitude Type: mb

USGS page: M 5.2 - 210km NE of Santa Cruz das Flores, Portugal

USGS status: Reviewed by a seismologist

Reports from the public: 0 people

about 5 hours ago 5.2 magnitude, 10 km depth

Azores Islands