Sentences with phrase «quakes occurred»

The author of the landmark study on the Ohio quakes has stated publicly that those quakes occurred once in an area at a specific point in the fracking process and was related to the rock formations in the area of fracking.

In fact, Page says, only two such quakes occurred.

(The Greater St. Louis area, home to about 2.9 million people today but less than 6000 at the time the quakes occurred, is centered about 235 kilometers north of New Madrid.)

* Update, 3 April, 11:05 a.m.: On the evening of 2 April, after this story was posted, two more large quakes occurred within the Iquique seismic gap.

In addition, the Alaskan quakes occurred systematically every 20 to 30 seconds in sync with the waves from Sumatra, the researchers report today in Science.

The team also analyzed how deep the earthquakes occur underground and concluded that as quakes occur deeper, the rocks become stronger and the stress drop, or force behind the earthquakes, becomes more powerful.

The authors of the survey estimate that quakes occur every 300 to 900 years.

«Either very few quakes occur on the far side, or there's something at the middle of the moon, possibly molten, that's attenuating the seismic signals,» Nakamura says.

The seismometers that we planted show the curvy peaks of ice quakes occurring each time the glacier lurches.

The most recent quake occurred in 1999 in the city of Izmit, just east of Istanbul.

Scientists estimate that these megathrust quakes occur at 400 to 600 - year intervals.

Many of Turkey's most severe quakes occur on one of the two faults that flank the Anatolian plate — the north and the east Anatolian faults.

Their next priority was to analyze as many monitoring systems as possible to form a picture of how the quake occurred and its potential effects on the rest of the planet.

In the early evening of Tuesday, 1 April, a magnitude - 8.2 quake occurred off the coast of northern Chile, killing six people, generating 2 - meter - high waves, and prompting the evacuation of nearly 1 million coastal residents.

Above all, what is the structure of the plates that mark the ground - zero point where quakes occur?

It's still to be determined by experts believe big quakes occur in the same location more than once.

(I posted on Twitter when that quake occurred.)

The epicenter of the quake occurred in Ossipee, near the mountain range.

Unlike living in an earthquake zone, wherein «quakes occur sporadically, in a non-cyclical fashion, flood plain inhabitants experience spring runoffs every single year... same time, same place, same station.

Not exact matches

Of the 5 most destructive quakes only 2 occurred in the last 30 years.

Entergy insists Indian Point's reactors can easily withstand the sort of low - magnitude quakes that occur in the Northeast, which are nothing compared to the 8.9 monster that ravaged Northern Japan, causing a massive tsunami.

The fault is divided into three segments and the worst - case scenario imagines that all three rupture at once — something thought to be unlikely as quakes normally occur at single segments.

Magnitude 5 tremors, such as the quake that hit the town of Itacarambi in Minas Gerais in 2007, cause damage and occur once every 50 years, according to the researchers.

(Once the quake had occurred, statistical forecasting based on the size of the main shock did anticipate the possibility of its largest aftershock: a magnitude - 6.3 quake in February that heavily damaged older structures in Christchurch.)

Magnitude 4 tremors, such as the 2012 quake in Montes Claros, Minas Gerais, occur twice a year.

Scientists had three or four seismographs positioned at the epicenter of the earthquake when it occurred, and another 25 to 30 will be deployed there now or soon to study aftershocks and locate the November 5 quake's origin more precisely.

Using strain meters, they identified 20 slow quakes over five years, 11 of which occurred during typhoons (Nature, DOI: 10.1038 / nature08042).

The short answer is they didn't look far enough back in geologic time to see that quakes and tsunamis just this big had indeed occurred there before.

Previous researchers thought each fragment in the Shumagin Gap was slowly creeping past the others in a fashion that would cause only mild quakes, such as those that had occurred in the area in 1948 and 1993.

As a result, the quake, which was the most powerful ever recorded to hit Japan, may have occurred earlier than it might have otherwise, said Andreas Mavrommatis, a graduate student in Stanford's School of Earth Sciences.

The deadly quake was thought to have occurred on the Dauki fault line, the junction of two pieces of the Indian tectonic plate, near what's known as the Shillong plateau.

The small quakes, which were typically magnitude 3 or 4, occurred along the entire length of the fault line, but each one occurred at the same spot every few years.

We found that aftershocks of the 2016 quake only occurred in front of the accretionary prism, where stress accumulation is greatest.»

One of the largest quakes to strike Japan occurred in 1944, leading to the loss of more than 1,200 lives on the main and most populated island of Honshu.

Although the study did not address when the quake might occur, it's possible it could register a magnitude of 8.2 or higher.

Because a quake's strength isn't clear at first rupture, emergency response managers face a choice when issuing warnings: Issue alerts early and often (left), which could provide as much as 48 seconds of warning that light shaking might occur but risk false alarms; or wait to issue alerts until the size of the quake is better known (right) but risk the warnings arriving too late — providing an 8 - second warning in this hypothetical case.

While demonstrating a domino effect is a challenge, Lay does have a geological mechanism that can link some large quakes that occur several months apart.

Many minor tremors occur, but quakes as large as magnitude 4.5 have been recorded.

After the Wenchuan quake, researchers immediately began calculating stress changes on the major faults surrounding the rupture zone, in part to identify where dangerous aftershocks might occur and to test how well these stress change calculations might work to predict new earthquakes.

Although there is evidence that the ground motions induced by major temblors trigger small quakes thousands of kilometres away, there's no sign that such triggering occurs for large quakes, he adds.

The Athens Geodynamic Institute also put the quake, which occurred at 0645 local time (2345 ET Thursday), at 5.7 magnitude and said it was undersea.

Satellite observations revealed that ground uplift occurred at the eastern wells but not at their western counterparts, where the Timpson quake actually erupted.

The recent spate of far - flung quakes is remarkably similar to a cluster that occurred in the middle of the last century, says Charles Bufe, a seismologist retired from the US Geological Survey (USGS) in Denver, Colorado.

Temblors that size are rare indeed: only 7 quakes as large or larger than 8.8 — the magnitude of last February's Chilean event — have occurred since 1900.

Recent quake swarms signal that magma is squeezing into Mauna Loa's magma storage chambers in the same spots below where the 1984 eruption occurred

But major earthquakes such as the Mw 7.9 2008 Chengdu quake in China and New Zealand's 2011 Mw 6.3 quake have shown that large earthquakes do occur and can cause significant infrastructure damage and loss of life.

He has reportedly claimed to develop radon - monitoring devices that can give the precise location and magnitude of a future quake, hours or more before it occurs.

The earthquake — estimated at magnitude 9.0 on the Richter scale — occurred in a total area much smaller than previous large earthquakes, such as the 8.8 Chilean earthquake last year, arguing that the slippage was much greater for the Japan quake, one of the four most powerful earthquakes on record.

Today's quake, however, occurred on a little studied intraplate fault.

JAMSTEC researchers mobilized almost immediately after the disaster, and sent their 106 - metre - long research vessel RV Kairei to the quake's epicentre just a few days after it occurred.