| 单词 | foreshock |
| 例句 | “Aftershocks” is thematically structured like an earthquake, including the rumbling foreshocks and the shuddering ground after an upheaval. In ‘Aftershocks,’ a Search for Home in a Life Around the World 2021-01-13T05:00:00Z "This may be the foreshock to the seismic shift," Kaplan said. Paramount to test shorter theatrical window with AMC, Cineplex deal 2015-07-08T04:00:00Z However, they could also be foreshocks that precede larger earthquakes or background seismicity, which is the normal amount of seismic activity for a given region. Some of today's earthquakes may be aftershocks from quakes in the 1800s 2023-11-13T05:00:00Z The patterns seen in the aseismic slip are similar in many ways to the patterns seen in foreshocks—smaller quakes that happen before major temblors. Subtle Movements That Precede Earthquakes Raise Questions about Predicting Disaster 2023-07-20T04:00:00Z Only about 1 in 20 damaging earthquakes have foreshocks – smaller quakes that precede a larger one in the same place. We May Never Predict Earthquakes, but We can Make Them Less Deadly 2023-02-17T05:00:00Z Sometimes an aftershock is even larger than the initial quake, Dr. Hough said, in which case the aftershock is considered the main quake and the first one is referred to as a foreshock. Hours after the first quake, the region was hit by an unusually large aftershock. 2023-02-06T05:00:00Z Many different avenues of prediction have been explored, such as using observations of warning foreshocks, changes in magnetic fields, seismic tremor, changing groundwater levels, strange animal behaviour, observed periodicity, stress transfer considerations, and others. Physical Geology 2015-01-01T00:00:00Z The accumulating elastic strain may be periodically released to produce small earthquakes on or near the main fault called foreshocks. An Introduction to Geology 2017-01-01T00:00:00Z Seismologists once hoped they could use foreshocks to predict big earthquakes, says Jones, who was not involved in the current study. Subtle Movements That Precede Earthquakes Raise Questions about Predicting Disaster 2023-07-20T04:00:00Z By definition they aren’t foreshocks, though, until a bigger one follows. We May Never Predict Earthquakes, but We can Make Them Less Deadly 2023-02-17T05:00:00Z Ordinarily, a 6.4 would be considered a big event, but it was quickly revealed to be a “foreshock.” World Digest: March 16, 2022 2022-03-16T04:00:00Z Some fear that January 6th was a foreshock, a prelude to an even more deadly eruption. Joe Biden one year on: Has the United States become ungovernable? 2022-01-19T05:00:00Z The largest quake, at magnitude 6.8, was preceded just minutes before by a couple of foreshocks. Swarm of earthquakes, some strong, hits off Alaska islands 2022-01-11T05:00:00Z It’s not clear that a quake is a foreshock until a larger quake happens. Subtle Movements That Precede Earthquakes Raise Questions about Predicting Disaster 2023-07-20T04:00:00Z The inability to recognize whether an earthquake in isolation is a foreshock is a big part of why useful prediction still eludes us. We May Never Predict Earthquakes, but We can Make Them Less Deadly 2023-02-17T05:00:00Z Continued large aftershocks are likely for days, and there’s a very slight chance — perhaps 1 in 20 or so — that the 7.3 might be a foreshock to a larger quake in the next three days. World Digest: March 16, 2022 2022-03-16T04:00:00Z Frustratingly, there's no way to know if smaller quakes are foreshadowing something more dire, according to Steven Jaume, a College of Charleston geology professor who characterized the foreshocks ahead of Charleston's 1886 disaster as "rare." Experts stunned by South Carolina's frequent earthquakes 2022-01-05T05:00:00Z That event was preceded by a series of smaller tremors over several days, although it was not known that the foreshocks were necessarily leading up to something more catastrophic until after the major quake. Experts puzzled by continuing South Carolina earthquakes 2022-01-05T05:00:00Z It isn’t until there is a quake that is larger than the previous ones that the initial episodes get “demoted” to foreshocks and the main shock is identified, Yule said. How earthquakes happen: The science of a shake 2021-06-12T04:00:00Z It was a foreshock — followed the next day by a larger quake. Here's what would happen if a huge quake hit Los Angeles 2021-06-12T04:00:00Z Several foreshocks, the largest being 3.3, preceded the quake, and a series of tiny aftershocks followed. Minor 4.0-magnitude earthquake strikes in Los Angeles area 2021-04-05T04:00:00Z And to use an earthquake analogy we should all understand by now thanks to her, “it’s still in the foreshock sequence.” Who doesn't trust Lucy Jones in a crisis? Here's what she has to say about the coronavirus pandemic 2020-06-27T04:00:00Z Frustratingly, there’s no way to know if smaller quakes are foreshadowing something more dire, according to Steven Jaume, a College of Charleston geology professor who characterized the foreshocks ahead of Charleston’s 1886 disaster as “rare.” Experts puzzled by continuing South Carolina earthquakes 2022-01-05T05:00:00Z Once all was said and done, the July 5 quake was classified as the main shock, the July 4 quake, a foreshock. How earthquakes happen: The science of a shake 2021-06-12T04:00:00Z “That is now considered a foreshock,” Jones wrote. Magnitude 5.8 earthquake shakes remote central California 2020-06-24T04:00:00Z This was a relatively unusual “foreshock sequence,” in which a moderate earthquake was followed by a major one. Puerto Rico earthquake triggers blackout, reports of injuries and at least one dead 2020-01-07T05:00:00Z "Another option could be secondary effects triggered by the foreshocks, like changes in groundwater or release of gases from the ground which might be sensed by the animals." Can dogs predict when earthquakes will happen? 2019-10-19T04:00:00Z McGovern lost in a landslide, despite foreshocks of the Watergate scandal that would topple Nixon two years later. Robert Boyd, journalist who shared Pulitzer for Eagleton shock therapy revelations, dies at 91 2019-09-20T04:00:00Z “Elevated foreshock activity is pervasive in Southern California,” the study concluded. Scientists finally know how big earthquakes start: with many smaller ones 2019-08-20T04:00:00Z Then the larger, 7.1 quake struck, reclassifying the earlier temblor as a foreshock. Even after huge earthquakes, much of Southern California still unprepared for The Big One 2019-07-17T04:00:00Z It’s possible, though unlikely, that both earthquakes could prove to be foreshocks of an even more violent event. Puerto Rico earthquake triggers blackout, reports of injuries and at least one dead 2020-01-07T05:00:00Z Scientists said the initial quake on Independence Day and its small aftershocks were actually foreshocks to Fridays larger tremor, which is the most powerful since a 7.1 quake shook the Mojave Desert in 1999. Californians brace for aftershocks following biggest earthquake in two decades 2019-07-06T04:00:00Z Scientists are now better able to identify previously undiscovered faults, detect patterns of moving earthquake swarms — like the one in Riverside County — and identify faint clusters of foreshocks that occur before a larger earthquake. ‘Like a roller coaster’: More than 400 small earthquakes rattle Southern California town 2019-06-04T04:00:00Z There were foreshocks in the magnitude 0 and 1 range as early as 17 days ahead of the mainshock. Scientists finally know how big earthquakes start: with many smaller ones 2019-08-20T04:00:00Z Being able to find foreshocks that precede larger quakes is particularly thrilling for scientists. California shaken by 10 times more earthquakes than previously known 2019-04-18T04:00:00Z The team also revealed a number of minuscule foreshocks—an equally important finding, given that scientists do not yet understand the details of how earthquakes get going. Scientists Uncover California's Hidden Earthquakes 2019-04-18T04:00:00Z The downfall of the Fox host Bill O'Reilly in April 2017 turned out to have been just a foreshock of the changes to come. #MeToo Brought Down 201 Powerful Men. Nearly Half of Their Replacements Are Women. 2018-10-23T04:00:00Z So when five foreshocks with magnitudes ranging from 4.8 to 6.1 shook the area over the course of several hours that Friday - the first hit at 3 p.m. 10 minutes of terror: A quake, a tsunami and a missing son 2018-10-09T04:00:00Z But that earthquake was preceded by a notable foreshock sequence. Scientists finally know how big earthquakes start: with many smaller ones 2019-08-20T04:00:00Z Researchers now have a better ability to identify undiscovered faults, detect patterns of moving earthquake swarms, and identify faint clusters of foreshocks that occur before a larger earthquake. California shaken by 10 times more earthquakes than previously known 2019-04-18T04:00:00Z Ali Moradi, a seismologist, told Iranian television that several foreshocks of magnitude 4.2 and higher sent some frightened residents into the streets before midnight, which meant fewer people were indoors when the main quake struck. At least 345 people killed and thousands injured in magnitude 7.3 earthquake near Iran-Iraq border – LA Times 2017-11-13T05:00:00Z While half of all large quakes are preceded by smaller foreshocks, the other half are not. Small earthquakes can increase risk of the Big One. Now, seismologists say they can create public quake forecasts 2017-09-11T04:00:00Z There were more than 500 “foreshocks” to the big temblor, most of them in the 24 hours before the largest quake hit. California scientists want you to be so afraid of a huge earthquake that you take action 2017-05-24T04:00:00Z In fact, the study shows the foreshock sequences ranged from starting 3 days to 35 days ahead of the mainshock. Scientists finally know how big earthquakes start: with many smaller ones 2019-08-20T04:00:00Z Half of all large quakes are preceded by smaller foreshocks. California shaken by 10 times more earthquakes than previously known 2019-04-18T04:00:00Z Dr. Lucy Jones, a prominent seismologist, said on Twitter that there was a 5% chance the quake was a foreshock, and a “much, much smaller” chance that it was a foreshock to a bigger earthquake. Earthquake jolts Santa Monica and West L.A. 2017-05-01T04:00:00Z A: An earthquake is generally characterized as a foreshock, main shock or aftershock. Explaining new jolts ratting earthquake-ravaged Italy 2016-11-01T04:00:00Z In the case of the Japanese quake, seismologists believe that several magnitude-6 quakes in the same region on the previous day were foreshocks to the Saturday event. Are Earthquakes in Japan and Ecuador Related? The Science Says No 2016-04-17T04:00:00Z The Meteorological Agency classified the quake that set the disaster in motion on Thursday as a “foreshock” of the even larger one Saturday. More Than 40 in Japan Are Confirmed Dead in Earthquakes 2016-04-16T04:00:00Z The Meteorological Agency classified the quake that set the disaster in motion on Thursday as a “foreshock” of the even larger one on Saturday. Second Powerful Earthquake Strikes Japan 2016-04-15T04:00:00Z Since Saturday’s quake was bigger, Thursday’s was technically a foreshock, a Meteorological Agency official, Gen Aoki, told a news conference. Earthquakes kill 35 near Kumamoto in southwestern Japan 2016-04-16T04:00:00Z A: The Italy quakes are under investigation, but it appears the previous quakes including the deadly August temblor were foreshocks to Sunday’s quake, said U.S. Explaining new jolts ratting earthquake-ravaged Italy 2016-11-01T04:00:00Z More than 100 aftershocks followed until the ultimately bigger quake on Saturday morning that led to the earlier, smaller event being reclassified as a foreshock. Japan hit by second powerful earthquake with fears of worse ahead 2016-04-15T04:00:00Z Her early research on foreshock series — identifying certain smaller earthquakes as possible harbingers of a bigger one — enabled officials to start issuing earthquake advisories in California. L.A. City Council celebrates the earthquake lady on 'Dr. Lucy Jones Day' 2016-03-30T04:00:00Z The shaking earlier in the week turned out to be the foreshocks of the largest earthquake in the nation’s recorded history. The Earthquake That Will Devastate Seattle 2015-07-20T04:00:00Z We have just seen the Hoover Dam disintegrate in a mere foreshock. California Dream Under Attack in All Manner of Cinematic Imaginings 2015-05-25T04:00:00Z Q: Can a main shock become a foreshock? Explaining new jolts ratting earthquake-ravaged Italy 2016-11-01T04:00:00Z He says it’s also interesting that the earthquake’s foreshock and half of its approximately 20 aftershocks occurred on fault planes perpendicular to the main quake. Expert: Puzzling aspects to November quake in Flagstaff area 2015-05-14T04:00:00Z The earlier quake was considered a foreshock to the larger quake Sunday night – which was followed by a 1.3 magnitude aftershock at 10:37 p.m. Earthquake rattles near one of L.A.'s most destructive quakes 2015-04-13T04:00:00Z The smaller quake was a foreshock that typically precedes larger seismic activity, Jones said. 3.5 earthquake rattles Los Angeles 2015-04-13T04:00:00Z After the fact, quakes are sorted into foreshocks, mainshocks and aftershocks — but at the time, it’s not clear which quakes in a sequence will be the most dangerous. Japan hangs on to goal of earthquake prediction 2014-09-02T04:00:00Z A: Most earthquakes happen at random without any precursory seismic activity or what are called “foreshocks.” Questions and answers about California earthquake 2014-08-24T04:00:00Z The foreshock ruptured the historically inactive Wilzetta fault, also known as the Seminole uplift, triggering the larger quake, she said. Oklahoma coming to terms with unprecedented surge in earthquakes 2014-06-17T04:00:00Z But migrating foreshocks don’t always mean a big quake is imminent, she added. Scientists say some quakes may be predictable 2014-05-15T04:00:00Z Seismologists said there was about a 5 percent chance that Friday's quake, which struck at 9:09 p.m., was a foreshock to a bigger temblor. Another Earthquake Rattles Southern California following 5.1 Quake 2014-03-29T22:46:49Z Those efforts will take on more urgency if the pattern of foreshocks and slow slip that preceded the recent quakes in Japan and Chile shows up again, before other offshore quakes. Japan hangs on to goal of earthquake prediction 2014-09-02T04:00:00Z Pacific time and was preceded by a foreshock. Aftershocks Follow Quake Near Los Angeles 2014-03-29T18:52:59Z Geological Survey in Pasadena, said the agency's real-time quake-reporting system was "confused" by a 2.3 magnitude foreshock that preceded the main jolt by 16 seconds, and a 3.2 aftershock less than a minute later. Earthquake rattles Southern California, no damage reported 2013-03-12T01:40:13Z A similar pattern of migrating foreshocks appears to have preceded the magnitude 8.1 quake that struck the northern coast of Chile on April 1. Scientists say some quakes may be predictable 2014-05-15T04:00:00Z A magnitude 4.7 foreshock preceded the quake by about 20 hours, and dozens of aftershocks were detected as well. Did Fracking Cause Oklahoma's Largest Recorded Earthquake? 2011-11-14T13:15:03.677Z There are plenty of examples of foreshocks, including those near the Hanford Nuclear Reservation in Washington State that never lead to temblors, Yeats says. Error and Trial: Italian Scientists Face Prison as Earthquake Manslaughter Hearing Resumes This Weekend 2011-09-30T11:15:00.443Z A 1988 study of other quake-prone Italian regions found, for example, that about half of large quakes were preceded by weaker foreshocks. Scientists Worry over 'Bizarre' Trial for Failing to Predict Earthquake 2011-09-20T19:15:01.927Z The mainshock was preceded by a foreshock sequence lasting 2 days. [Report] Shallow Dynamic Overshoot and Energetic Deep Rupture in the 2011 Mw 9.0 Tohoku-Oki Earthquake 2011-06-16T18:26:03.160Z The key to understanding the significance of foreshock sequences and slow slip on subduction zones is a dense network of seafloor sensors that can track those motions, Brodsky said. Scientists say some quakes may be predictable 2014-05-15T04:00:00Z On average, about one in 20 earthquakes is a foreshock, and there's actually a chance that this 9 was a foreshock. When Will Japan's Aftershocks Stop? 2011-04-07T21:45:02.310Z The magnitude 8.9 earthquake was preceded by what seismologists call foreshocks, including a magnitude 7.2 quake that occurred Wednesday about 25 miles south of the epicenter on Friday. Away From Japan, Tsunami?s Effect Is Diffuse 2011-03-16T19:04:50Z These were mainly clustered in a region just to the northeast of Friday's larger rupture, and within the much larger cloud of aftershocks In hindsight, these earthquakes were foreshocks of today's main event. Japan earthquake: The Explainer 2011-03-14T15:45:00.220Z The values of slip rate and slip are relative in that they depend on the assumed moment of the Mw 7.3 foreshock. [Report] Shallow Dynamic Overshoot and Energetic Deep Rupture in the 2011 Mw 9.0 Tohoku-Oki Earthquake 2011-06-16T18:26:03.160Z The problem is that it has always been impossible to distinguish foreshocks from run-of-the-mill quakes that don’t presage anything bigger. Scientists say some quakes may be predictable 2014-05-15T04:00:00Z There was a major tremor, magnitude 7.9, just two days ago - what now looks like a foreshock. Japan: The 'Big One' hit, but not where they thought it would 2011-03-12T00:38:01Z Vidale says scientists will be scrutinizing Japan's seismological data in the days leading up to the quake for patterns or foreshocks that could predict future quakes. Japan Earthquake Holds Lessons, and Warnings, for Pacific Northwest 2011-03-11T23:37:54Z However, there was no way of telling this in advance: there is nothing particularly "foreshock-y" about foreshocks beyond the fact that they end up being smaller in magnitude than the main shock they precede. Japan earthquake: The Explainer 2011-03-14T15:45:00.220Z The 8.9 quake was preceded by what seismologists call foreshocks, including a 7.2-magnitude quake that occurred Wednesday, about 25 miles south of Friday’s epicenter. Away From Japan, Tsunami?s Effect Is Diffuse 2011-03-11T22:50:12Z One forecasting method focuses on the minor foreshocks that often portend a large quake. Japan earthquake demonstrates the limits—and power—of science 2011-03-11T18:45:08.260Z What is likely to interest seismologists will be the association with a number of very strong foreshocks in recent days. Extraordinary earthquake 2011-03-11T09:00:34Z The orchestra's coach was crossing a bridge when the earthquake rocked the east side of the country - the latest of a number of powerful foreshocks in recent days. Orchestra 'shaken' by earthquake 2011-03-11T11:02:07Z A local official sounded the alarm after many foreshocks and reports of snakes emerging from hibernation. Under the world's greatest cities, deadly plates 2010-02-23T05:00:00Z In terms of public awareness and reaction, these foreshocks could turn out to be quite important because they will have reminded people what they are supposed to do in a big quake to protect themselves. Extraordinary earthquake 2011-03-11T09:00:34Z Moreover, not all big quakes are preceded by foreshocks. Japan earthquake demonstrates the limits—and power—of science 2011-03-11T18:45:08.260Z |
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