Current Earthquake News and Events

Current Earthquake News and Events, Earthquake News Articles.
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Past earthquakes triggered large rockslides in the Eastern Alps
Geologists from the University of Innsbruck shed new light on a long-lasting debate about the trigger mechanism of large rockslides. Lake mud in two Alpine lakes in Tyrol reveal that rare strong earthquakes are the final cause of multiple, prehistoric rockslides in the Eastern Alps. The steep rock slopes were degraded by a series of prehistoric earthquakes, larger than any of the historically documented events in the region of the past ~1000 years. The study has now been published in the Journal Nature Communications. (2021-02-16)

Slow motion precursors give earthquakes the fast slip
At a glacier near the South Pole, earth scientists have found evidence of a quiet, slow-motion fault slip that triggers strong, fast-slip earthquakes many miles away, according to Cornell University research published in Science Advances. (2021-02-16)

Seismic surveys using fin whale songs
Fin whale song - one of the strongest animal calls in the ocean - can be used as a seismic source for probing the structure of Earth's crust at the seafloor, researchers report. (2021-02-11)

Tests reveal cybersecurity vulnerabilities of common seismological equipment
Seismic monitoring devices linked to the internet are vulnerable to cyberattacks that could disrupt data collection and processing, say researchers who have probed the devices for weak points. (2021-02-10)

Tsunamis and tsunami warning: recent progress and future prospects
There have been frequent tsunamis since the 21st century, drawing the attention of many countries on the study of tsunami mechanism and warning. Tsunami records also play an essential role in deriving earthquake rupture models in subduction zones. A recent paper reviews the recent progress and limitations of tsunami research, from the aspects of tsunami generation, propagation, inversion and warning. Potential tsunami warning strategies are discussed and future prospects on tsunami research are provided. (2021-02-01)

New report charts path toward superior earthquake recovery
A committee of experts, formed by NIST and FEMA under the direction of Congress, has urged officials at all levels of government to support research and policies that could help get the buildings and services society depends on up and running quickly after an earthquake. In a report delivered to Congress, the committee outlines seven recommendations that, if acted upon, may greatly improve the resilience of communities across the nation. (2021-01-27)

GEFS: Searching beyond seismology for earthquake precursors
In this special issue, EPJ Special Topics proposes the Global Earthquake Forecasting System (GEFS): the first collaborative initiative between multi-disciplinary researchers devoted to studying a diverse array of non-seismic earthquake precursors. (2021-01-25)

Simulating 800,000 years of California earthquake history to pinpoint risks
A new study presents a prototype Rate-State earthquake simulator that simulates hundreds of thousands of years of seismic history in California. Coupled with another code, the framework can calculate the amount of shaking that would occur for each quake. The new approach improves the ability to pinpoint how big an earthquake might occur in a given location, allowing building code developers and structural engineers to design more resilient buildings that can survive earthquakes. (2021-01-25)

When it comes to eyewitness accounts of earthquake shaking, representation matters
As scientists increasingly rely on eyewitness accounts of earthquake shaking reported through online systems, they should consider whether those accounts are societally and spatially representative for an event, according to a new paper published in Seismological Research Letters. (2021-01-21)

Israel can expect a major earthquake of 6.5 on the Richter scale in the coming years
The researchers warn: In the coming years, it is likely that a devastating earthquake will hit, causing hundreds of deaths. (2021-01-06)

Study suggests great earthquakes as cause of Arctic warming
A researcher from MIPT has proposed a new explanation for the Arctic's rapid warming. In his recent paper in Geosciences, he suggests that the warming could have been triggered by a series of great earthquakes (2020-12-23)

New model reveals previously unrecognized complexity of oceanic earthquake zones
University of Tsukuba researchers constructed a state-of-the-art model based on seismic data from the January 2020 Caribbean earthquake. The model revealed considerable complexity in rupture speed and direction, related to a bend in the fault that triggered several rupture episodes. The analysis revealed previously unrecognized complexity of rupture processes and fault geometry in ocean faults that had been assumed to be simple and linear, with implications for future earthquake modeling and a possible interaction with seafloor evolution. (2020-12-21)

Deep, slow-slip action may direct largest earthquakes and their tsunamis
Megathrust earthquakes and subsequent tsunamis that originate in subduction zones like Cascadia -- Vancouver Island, Canada, to northern California -- are some of the most severe natural disasters in the world. Now a team of geoscientists thinks the key to understanding some of these destructive events may lie in the deep, gradual slow-slip behaviors beneath the subduction zones. This information might help in planning for future earthquakes in the area. (2020-12-21)

Seismic Hazard Assessment: Campotosto, Italy
Between 1997 and 2017, central Italy was struck by several seismic sequences that cumulatively claimed more than 600 victims, besides producing widespread destruction in historical towns and damage to vital infrastructures. Based on the integration of geological and seismological datasets, this new study published in the Geological Society of America Bulletin provides a 4D, high-resolution image of a crustal volume hosting an active linkage zone between two major seismogenic faults. (2020-12-16)

Seismic activity of New Zealand's alpine fault more complex than suspected
New evidence of a 19th century earthquake on New Zealand's Alpine fault suggests that in at least one portion of the fault, smaller earthquakes may occur in between such large rupture events. (2020-12-01)

A dessert-like desert: Californian lithosphere resembles crème brûlée
A model for the southeastern California lithosphere suggests that a strong upper crust overlies weaker lower rock layers. (2020-11-30)

Earthquake scenario for large German city
What if there is a major earthquake near Cologne? This scenario is subject of the ''Risk Analysis in Civil Protection 2019'' report that was recently submitted to the German Bundestag. On the basis of extensive research, experts have listed in detail effects to be expected. What Germans usually only know from abroad results from modeling a strong earthquake near the megacity of Cologne: ground shaking, damaged and destroyed houses, blocked roads, many injured and dead. (2020-11-30)

Seismic guidelines underestimate impact of 'The Big One' on metro Vancouver buildings
Scientists examining the effects of a megathrust earthquake in the Pacific Northwest say tall buildings across Metro Vancouver will experience greater shaking than currently accounted for by Canada's national seismic hazard model. (2020-11-30)

Piecing together the Alaska coastline's fractured volcanic activity
Among seismologists, the geology of Alaska's earthquake- and volcano-rich coast from the Aleutian Islands to the southeast is fascinating, but not well understood. Now, with more sophisticated tools than before, a University of Massachusetts Amherst team reports unexpected new details about the area's tectonic plates and their relationships to volcanoes. (2020-11-17)

Landslide along Alaskan fjord could trigger tsunami
Scientists noted that the slope on Barry Arm fjord on Prince William Sound in southeastern Alaska slid some 120 meters from 2010 to 2017, a slow-moving landslide caused by glacial melt that could trigger a devastating tsunami. These are some of the first measurements to quantify how the slope is falling there; the study also models a potential tsunami. (2020-11-12)

A new model found to predict earthquake propagation speed
In an article published on November 9th in Nature Geoscience, Jean-Paul Ampuero and Huihui Weng, two researchers from Université Côte d'Azur and the French National Research Institute for Sustainable Development (IRD-France) propose a new model to predict the propagation speed of earthquakes. (2020-11-09)

Distinct slab interfaces found within mantle transition zone
Prof. CHEN Qifu's group from the Institute of Geology and Geophysics, Chinese Academy of Sciences (IGGCAS) and their collaborators observed two distinct seismic discontinuities within the mantle transition zone (~410 km to 660 km) beneath the western Pacific. (2020-11-09)

Smaller earthquakes "with ambition" produce the most ground shaking
An earthquake of magnitude 8.0 or larger will almost always cause strong shaking, but a new study suggests that smaller earthquakes--those around magnitude 5.5 or so--are the cause of most occurrences of strong shaking at a 60-kilometer (37-mile) distance. (2020-11-04)

Bridges with limb-inspired architecture can withstand earthquakes, cut repair costs
Structural damage to any of the nation's ailing bridges can come with a hefty price of billions of dollars in repairs. New bridge designs promise more damage-resistant structures and, consequently, lower restoration costs. But if these designs haven't been implemented in the real world, predicting how they can be damaged and what repair strategies should be implemented remain unresolved. (2020-10-26)

Ancient lake contributed to past San Andreas fault ruptures
he San Andreas fault, which runs along the western coast of North America and crosses dense population centers like Los Angeles, California, is one of the most-studied faults in North America because of its significant hazard risk. Based on its roughly 150-year recurrence interval for magnitude 7.5 earthquakes and the fact that it's been over 300 years since that's happened, the southern San Andreas fault has long been called 'overdue' for such an earthquake. (2020-10-26)

AI detects hidden earthquakes
Tiny movements in Earth's outermost layer may provide a Rosetta Stone for deciphering the physics and warning signs of big quakes. New algorithms that work a little like human vision are now detecting these long-hidden microquakes in the growing mountain of seismic data. (2020-10-22)

A new technique predicts how earthquakes would affect a city's hospitals
An international research team led by the Stanford Blume Center for Earthquake Engineering has developed a methodology to help disaster preparedness officials in large cities make contingency plans on a region-wide basis to make sure that emergency responders can get patients to the hospital facilities that are likeliest to remain in commission after a quake. (2020-10-22)

New evidence for geologically recent earthquakes near Portland, Oregon metro area
A paleoseismic trench dug across the Gales Creek fault, located about 35 kilometers (roughly 22 miles) west of Portland, Oregon, documents evidence for three surface-rupturing earthquakes that took place about 8,800, 4,200 and 1,000 years ago. (2020-10-20)

Deep learning artificial intelligence keeps an eye on volcano movements
RADAR satellites can collect massive amounts of remote sensing data that can detect ground movements -- surface deformations -- at volcanoes in near real time. These ground movements could signal impending volcanic activity and unrest; however, clouds and other atmospheric and instrumental disturbances can introduce significant errors in those ground movement measurements. Now, Penn State researchers have used artificial intelligence (AI) to clear up that noise, drastically facilitating and improving near real-time observation of volcanic movements and the detection of volcanic activity and unrest. (2020-10-15)

Magnitude comparison distinguishes small earthquakes from explosions in US west
By comparing two magnitude measurements for seismic events recorded locally, researchers can tell whether the event was a small earthquake or a single-fire buried chemical explosion. (2020-10-13)

EPFL scientist gains fresh insight into the origins of earthquakes
The speed and intensity with which seismic waves propagate after an earthquake depend mainly on forces occurring deep inside the rocks along a fault line, according to a study by EPFL scientist François Passelègue. His sophisticated models are giving us fresh insight into the factors that can trigger an earthquake. (2020-10-12)

Unusually shallow earthquake ruptures in Chinese fracking field
An unusually shallow earthquake triggered by hydraulic fracturing in a Chinese shale gas field could change how experts view the risks of fracking for faults that lie very near the Earth's surface. (2020-10-07)

Earthquake forecasting clues unearthed in strange precariously balanced rocks
Naturally formed balancing boulders could be used to help scientists to forecast large earthquakes more precisely. (2020-10-01)

Research may curb economic losses to power plants after earthquakes
Sitting atop power transformers are bushing systems that play a critical role in supplying communities with electricity. However, these objects are also susceptible to breaking during earthquakes. Once damaged, bushings can cause widespread outages and burden a state with expensive repairs. (2020-10-01)

Network reveals large variations in shaking in LA basin after Ridgecrest earthquake
The 2019 Ridgecrest earthquake sequence has revealed areas of the Los Angeles basin where the amplification of shaking of high-rise buildings is greatest, according to a new report in Seismological Research Letters. (2020-09-30)

Earthquake lightning: Mysterious luminescence phenomena
Photoemission induced by rock fracturing can occur as a result of landslides associated with earthquakes. Factors involved in such earthquake lightnings were studied with granite, rhyolite, pyroclastic rock and limestone. (2020-09-28)

How earthquake swarms arise
A new fault simulator maps out how interactions between pressure, friction and fluids rising through a fault zone can lead to slow-motion quakes and seismic swarms. (2020-09-24)

Flood risks: More accurate data due to COVID-19
Emerging use of Global Navigation Satellite System (GNSS) makes it possible to continuously measure shallow changes in elevation of Earth surface. A study by the University of Bonn now shows that the quality of these measurements may have improved significantly during the pandemic, at least at some stations. The results show which factors should be considered in the future when installing GPS antennas. (2020-09-23)

Seismic data explains continental collision beneath Tibet
New imagery reveals the causes of seismic activity deep beneath the Himalaya region, contributing to an ongoing debate over the continental collision process when two tectonic plates crash into each other. (2020-09-22)

Undersea earthquakes shake up climate science
Sound generated by seismic events on the seabed can be used to determine the temperature of Earth's warming oceans. (2020-09-18)

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