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Thu, 17 Oct 2019
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Earthquakes

Seismograph

Earthquake measuring 4.9 shakes south west France

The epicentre of the earthquake was located 5 km from Montendre
© Google Maps
The epicentre of the earthquake was located 5 km from Montendre.
People living in south western France felt the earth move on Wednesday morning when an earthquake measuring 4.9 on the Richter scale struck just north of Bordeaux.

The earthquake struck at around 10.56 am about 50 kilometres north of Bordeaux. It could be felt all the way from Bordeaux to the city of Poitiers in western France, according to France's National Seismic Monitoring Network (RéNass).

The epicentre of the earthquake was about 5 km from Montendre in the Charente-Maritime department in southwestern France.


Bizarro Earth

Vancouver Island overdue for the big one

Ring of Fire
© Nick Murray/News Staff
A map showing earthquakes and the various tectonic plates around the Pacific Ocean.
According to seismologists, Vancouver Island is overdue for a magnitude 7 earthquake and has entered a period of time where an additional magnitude 9 mega-thrust rupture earthquake, likely to cause a tsunami, can be expected.

"In our part of the world, there are the big Pacific and North American [tectonic] plates, and caught in-between the two is the Juan de Fuca plate system," says Taimi Mulder, seismologist at the Geological Survey of Canada (GSC), which monitors all seismic activity in Western Canada.

Over millions of years, these plates push and grind under and past each other in areas called subduction zones. Earthquakes are caused and can be tiny or they can be massive, like the 2004 Sumatran earthquake, which ruptured 1,000 kilometres of coastline.

"An earthquake is like ringing a bell. The earthquake is the clapper that sets it off and the bell reverberates," said Mulder. "In an earthquake, energy is sent shooting in all directions and it pings around inside the earth making the whole earth vibrate."

Magnitude 4 or 5 earthquakes will likely wake you up, while a 7 will result in toppled bookcases and fallen chimneys. Thanks to B.C.'s stringent building code, structural collapse is not expected in magnitude 7s. Magnitude 8 or 9s have the same severity of shaking as a 7, but their duration lasts longer, often over 2 or 3 minutes. They cause structural building damage and ruptured gas lines, often causing fire.

Arrow Down

At least 5 killed by earthquake-triggered landslide on Lombok, Indonesia

A resident of Montong Gading district, East Lombok, stands by her collapsed house after an earthquake on Sunday
© BPBD NTB
A resident of Montong Gading district, East Lombok, stands by her collapsed house after an earthquake on Sunday
A 5.4-magnitude earthquake on Lombok Island, West Nusa Tenggara, has caused a landslide in North Lombok regency, killing at least five people and injuring more than 30 - most of whom were foreign and domestic tourists.

According to a statement issued by the Meteorology, Climatology and Geophysics Agency on Sunday afternoon, a 5.4-magnitude tectonic earthquake jolted East Lombok regency. The earthquake struck at about 2 p.m. local time, with its epicenter located approximately 20 kilometers north of the regency's Selong city. It was estimated to be 20 km deep.

While the agency stated the earthquake did not trigger a tsunami, North Lombok regency administration said it had caused a landslide at the Tiu Kelep Waterfall in Bayan district. The earthquake also destroyed several houses.

Seismograph

M6.5 earthquake strikes southeast Bolivia

Bolivia earthquake
© USGS
An earthquake with a magnitude of 6.5 struck near the city of Cochabamba in southeastern Bolivia early on Friday, the U.S. Geological Survey said.

It was not immediately clear whether anyone was injured. The quake struck some 55 km (34 miles) southeast of Cochabamba, the USGS said.

Reporting by Darren Schuettler; editing by Christian Schmollinger

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#PropagandaWatch - Shoving 'climate grief' down our throats

Climate Grief
© HypnoArt/Pixabay
The propagandists are in overdrive shoving "climate grief" down our collective throats. And the next step in that indoctrination, the acceptance of climate eugenics to atone for our climate sins, is almost here. Join James for this week's important edition of #PropagandaWatch dissecting the dangerous lies that are being pushed in the name of the environment.


Seismograph

6.2-magnitude quake hits 260 km SE of Lambasa, Fiji

earthquake
An earthquake with a magnitude of 6.2 jolted 260 km SE of Lambasa, Fiji at 08:12:25 GMT on Sunday, the US Geological Survey said, Trend reports citing Xinhua.

The epicenter, with a depth of 567.38 km, was initially determined to be at 17.8313 degrees south latitude and 178.662 degrees west longitude.

Seismograph

Earthquake of 6.2 magnitude strikes off southern Philippines

Earthquake seismograph
An earthquake of 6.2 magnitude struck off Surigao del Norte province in the southern Philippines on Friday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.

Initially, the institute said the quake was magnitude 6.4. But a few minutes later the institute revised its magnitude to 6.2.

In an updated bulletin, the institute said the quake, which struck at 11:06 p.m., hit at a depth of 16 kilometers, about 38 km northwest of Burgos town in Surigao del Norte.

However, in the main Burgos town, the institute said the intensity of the earthquake was only magnitude 5.

The tremor was also felt in Dinagat Island, Butuan City, Abuyog in Leyte province, Tacloban City in Southern Leyte, Camiguin Island, Cebu City in the central Philippines.

The institute said the tremor, which was tectonic in origin, is not expected to cause damage. However, it said that aftershocks are expected.

Seismograph

6.6-magnitude quake hits 134 km southeast of L'Esperance Rock, New Zealand

earthquake
An earthquake of 6.6 magnitude jolted 134 km southeast of L'Esperance Rock, New Zealand on Wednesday, the U.S. Geological Survey (USGS) said.

The epicenter, with a depth of 46.0 km, was initially determined to be at 32.2 degrees south latitude and 177.8 degrees west longitude.

Seismograph

M6.2 earthquake jolts eastern Hokkaido, Japan

Hokkaido quake map
© USGS
The epicentre, with a depth of 10km, was initially determined to be at a 41.9336 degrees north latitude and 146.9481 degrees east longitude.
A magnitude 6.2 earthquake shook the eastern part of Japan's northernmost prefecture of Hokkaido on the afternoon of March 2, the Japan Meteorological Agency (JMA) said.

There were no immediate reports of casualties, and no tsunami warning was issued.

The quake, which struck at 12:23 p.m., registered a 4 on the 7-point Japanese seismic intensity scale in the northern Nemuro district and the town of Shibetsu, eastern Hokkaido, and a 3 in extensive areas of the Tokachi, Nemuro and Kushiro districts, according to the JMA.

The focus of the temblor was about 10 kilometers below the seabed off the Nemuro Peninsula.

Bizarro Earth

The last megaquake that rocked the Pacific Northwest

Cascadia Subduction Zone
© American Geoscience Institute
Screenshot of a graphic showing the Cascadia Subduction Zone.
Red cedar "ghost forests," a Japanese villager's handwritten notes, and Native American oral histories: They all offered clues that led scientists to precisely date the last megaquake that rocked the Pacific Northwest.

It occurred on Jan. 26, 1700.

Unraveling the clues was similar to being a detective investigating a "not-so-ancient geological crime," U.S. Geological Survey scientist Brian Atwater said during a presentation to a full house at LCC's Health and Science lecture hall Wednesday night.

But "there's an edge to this story," he said. "It's a frightening thing. ... The effects of the tsunami are not so pretty."

That is because the next quake could come at any time, though they recur on average every 500 years or so. But the intervals are highly variable, and researchers estimate that there's a 10 percent chance the region will be hit with the next magnitude 8 or larger earthquake within the next 50 years.

Whenever it occurs, it will shake the ground for several minutes from Vancouver Island to Northern California and churn up tsunamis that swamp coastal communities. Thousands may die, and the region's highway and utility infrastructure and thousands of buildings will collapse, geologists say.

Atwater is a pioneer whose research helped determine that giant "subduction zone" earthquakes have occurred in the Pacific Northwest in the past and will do so again.