Sentences with phrase «magnitude quake in»

The U.S. Geological Survey (USGS) reported a 2.8 - magnitude quake in Stephens County on Tuesday.

This long period of «afterslip» compares to just a year of afterslip for a similar magnitude quake in Napa, California in 2014, demonstrating large variation in fault behavior after earthquakes.

South Korean officials said a tremor, equivalent to a 3.5 magnitude earthquake, had been detected in north Hamgyong province, in the north - east, and the US Geological Survey said it had recorded a 4.2 magnitude quake in North Korea.

According to Seoul, nuclear test on Sunday resulted in an artificial 5.7 magnitude quake in Kilju, which is in the northern Hamgyong province where North Korea conducts its nuclear tests, according to the AP.

The 4,312 landslides that happened within six weeks after the quake were far fewer than occurred after similar - magnitude quakes in other mountainous areas.

Not exact matches

A magnitude - 7.9 quake has struck in the Gulf of Alaska, prompting tsunami warnings in Alaska and British Columbia.

Elsewhere on the Ring of Fire, a magnitude - 6.1 quake struck Indonesia and a volcano erupted in Japan.

The quake's epicenter was 175 miles east of Kamaishi, and not far from the 9.0 - magnitude blast that sent tsunami waves racing toward Fukushima in 2011.

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.

He pointed to induced quakes of magnitude 4 or larger in the past year in Texas, Oklahoma, Arkansas, Colorado, New Mexico, and Ohio, but said much of this happened too late for the research council to include in its study.»

The signals generated by the magnitude - 9.1 quake that struck Japan were barely one - billionth g, the amount of Earth's gravitational field at sea level, but they traveled at the speed of light and were detected at seismometers hundreds of kilometers away, the researchers report today in Science.

And it's good timing: The planet appears to be experiencing an uptick in high - magnitude quakes.

If the scientists» approach had been available in 2011, they suggest, the quake's true magnitude could have been estimated within minutes rather than hours.

Now, researchers have come up with a way to more quickly gauge a big quake's magnitude and thus provide faster, more accurate tsunami warnings: by measuring the miniscule changes in Earth's gravitational field that are generated when massive slabs of the planet's crust shift by dozens of meters over the course of a few minutes.

Had seismographs been available at the time, scientists believe those tremors would have registered magnitudes at least as great as the 7.0 quake that devastated Haiti in 2010 and possibly as high as 8.0.

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.

The area experiences about 20 small quakes a year, plus the occasional monster, such as the magnitude 7.3 shake in 1886 that killed 60 people.

But in 2001, a huge burst of pressure was released through Jurassic - era fault lines near the center of the Indian plate, triggering a magnitude 7.7 quake that took 20,000 lives.

There would be other surprises on little - known faults: the 1992 magnitude - 7.3 Landers quake off the southern San Andreas (1 killed, $ 92 million in damage); the 1994 magnitude - 6.7 Northridge earthquake on a previously unknown, buried fault (60 killed, $ 20 billion in damage); and the 1999 Hector Mine quake, magnitude 7.1, in the remoteness of the Mojave Desert.

The magnitude - 6.2 quake was not preceded by even one warning tremor, says Warner Marzocchi, head of the National Institute of Geophysics and Volcanology in Rome.

At magnitude 7.4 it was the strongest quake in the city since the devastating 1985 earthquake that killed 9,500 people.

In California not too long ago, a magnitude 4.8 quake struck near the southern San Andreas, the biggest so close to the fault in the history of seismic recordinIn California not too long ago, a magnitude 4.8 quake struck near the southern San Andreas, the biggest so close to the fault in the history of seismic recordinin the history of seismic recording.

In 2013 the state recorded 109 quakes of magnitude 3 and greater.

Image courtesy of iStockphoto / kickers A magnitude 5.8 earthquake that shook buildings and sent people in New York, Philadelphia, Washington, D.C., and surrounding areas streaming outside into the summer weather on August 23 might seem like small shakes for residents of more quake - prone regions of the nation.

After comparing central U.S. earthquakes with tremors in geologically similar parts of the world — and noting that induced quakes, so far, tended to rupture either smaller faults or smaller sections of faults than West Coast quakes — they settled on an upper limit of magnitude 6, which can damage even well - built structures.

NEW ZEALAND / / / EARTHQUAKE With an epicenter 6 miles from downtown, the Christchurch quake in February took 181 lives and caused $ 12 billion in damages despite having a magnitude of just 6.3.

Two other segments of the Ring of Fire ruptured this way — Chile in 1960 at magnitude 9.5, the largest quake ever recorded on Earth, and Alaska's horrible Good Friday earthquake of 1964, at 9.2 the strongest jolt ever to hit the continent of North America.

At the U.S. Geological Survey (USGS) lab in Menlo Park, seismometers peg the quake at magnitude 8.1, and the tsunami detection centers in Alaska and Hawaii begin waking up the alarm system with standby alerts all around the Pacific Rim.

Stanford scientists have found evidence that sections of the fault responsible for the 9.0 magnitude Tohoku earthquake that devastated northern Japan in 2011 were relieving seismic stress at a gradually accelerating rate for years before the quake.

Instead, based on waves seen at Fukushima in 1960, generated by a magnitude - 9.5 quake across the Pacific in Chile, the plant's designers initially assumed that the worst - case scenario was a 3.1 - metre tsunami.

The researchers estimated that the quake's magnitude had been between 7.5 and 8.5, comparable to the Nepal earthquake in 2015 that killed nearly 9000 people.

It was a similar story in 2007, when the Kashiwazaki - Kariwa plant in western Japan was rocked by a magnitude - 6.6 quake, and last year, when a magnitude - 5.8 quake hit less than 20 kilometres from the North Anna plant in Virginia.

In 1964 a region of this same tectonic clash, called the Alaska — Aleutian Subduction Zone, produced the magnitude 9.2 «Good Friday» earthquake, the second - strongest quake ever recorded.

The findings also confirm that the entire area of the Himalayas is capable of producing large earthquakes like the magnitude - 7.8 quake that struck Nepal in 2015.

Stefano Lorito of Italy's National Institute of Geophysics and Volcanology in Rome and colleagues assessed the amount of land movement during the magnitude 8.8 quake that hit Chile in February 2010, claiming over 500 lives.

New Madrid - area faults produced earthquakes as large as 7 or 8 - magnitude in the early 1800s and have produced smaller quakes since then.

The biggest earthquake on record, a magnitude 9.5 quake in 1960, was on the same fault.

Records also show that in the 19th century there were two magnitude 8.8 quakes there within a decade, in 1877 and 1868.

Backup power was needed at Fukushima after the magnitude - 9.0 quake struck and the six power lines bringing in offsite electrical power to Fukushima Daiichi were severed, says Michael Weightman, Britain's chief nuclear installations inspector and a member of the International Atomic Energy Agency's International Nuclear Safety Group.

The powerful 8.3 magnitude earthquake that hit Chile overnight was partly a consequence of a massive nearby quake in 2010.

The magnitude 5.8 Pawnee quake, felt widely across Oklahoma, is the largest earthquake recorded in the state since the 1950s.

In February that year, a quake of 8.8 magnitude killed more than 700 people and shifted the Earth's axis.

In recent years, Oklahoma has had more magnitude 3.0 quakes than California, says Michael Blanpied of USGS, including its two largest ever recorded: a 5.7 magnitude in 2011 and a 5.8 magnitude in 201In recent years, Oklahoma has had more magnitude 3.0 quakes than California, says Michael Blanpied of USGS, including its two largest ever recorded: a 5.7 magnitude in 2011 and a 5.8 magnitude in 201in 2011 and a 5.8 magnitude in 201in 2016.

Two months later, in January 2007, the islands felt the force of a second large quake, this time an 8.1 - magnitude event.

They tend to accompany large quakes — with magnitudes above 6 — centred at fairly shallow points in the Earth's crust.

In the new study, Minson, Meier and colleagues used standard ground - motion prediction equations to calculate the minimum quake magnitude that would produce shaking at any distance.

More than 87,000 people were killed or went missing as a result of the 2008 magnitude 7.9 Wenchuan earthquake in China's Sichuan province, the largest quake to hit China since 1950.

Research papers published in this special section of SRL suggest the 2008 Wenchuan earthquake triggered the magnitude 6.6 Lushan quake.