//www.koonmotors.com/news/earth_climate/earthquakes/ Earthquake News. Early detection, historic earthquakes, earthquake measurement, smart building methods and more in our earthquake research news. en-us Fri, 08 Sep 2023 11:54:55 EDT Fri, 08 Sep 2023 11:54:55 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/earth_climate/earthquakes/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/08/230810110345.htm New research confirms fracking causes slow, small earthquakes or tremors, whose origin was previously a mystery to scientists. The tremors are produced by the same processes that could create large, damaging earthquakes. Thu, 10 Aug 2023 11:03:45 EDT //www.koonmotors.com/releases/2023/08/230810110345.htm //www.koonmotors.com/releases/2023/08/230802132010.htm The same fiber optic networks that provide internet can simultaneously act as earthquake sensors, as demonstrated in a new study. Wed, 02 Aug 2023 13:20:10 EDT //www.koonmotors.com/releases/2023/08/230802132010.htm //www.koonmotors.com/releases/2023/08/230801105044.htm A new study uses nearly a century of data to show that the average heights of winter waves along the California coast have increased as climate change has heated up the planet. Tue, 01 Aug 2023 10:50:44 EDT //www.koonmotors.com/releases/2023/08/230801105044.htm //www.koonmotors.com/releases/2023/07/230731151555.htm 慢地震滑动的现象many days or months, and you barely notice them. In 2007, researchers proposed how the magnitude and duration of earthquakes vary, which can help differentiate slow and fast earthquakes. Seismologists now bolster the proposed relation with more data. They suggest the presence of a speed limit to slow earthquakes and reveal physical processes that differentiate slow and fast earthquakes. Since slow earthquakes could indicate future fast earthquakes, monitoring and understanding them helps accurately forecast devastating earthquakes and tsunamis. Mon, 31 Jul 2023 15:15:55 EDT //www.koonmotors.com/releases/2023/07/230731151555.htm //www.koonmotors.com/releases/2023/07/230724182459.htm Much of central Utah's seismic activity comes in groups of small earthquakes. A study by seismologists examines 2,300 quakes occurring 40 'swarms' dating back to 1981, opening a window into Earth's crust in a geothermally active area. Mon, 24 Jul 2023 18:24:59 EDT //www.koonmotors.com/releases/2023/07/230724182459.htm //www.koonmotors.com/releases/2023/07/230705115131.htm Scientists used seismic data discovered Earth's inner core displays a variety of textures that it acquired will it formed from within the fluid outer core. The data set was generated over the past 27 years by a network of seismometers set up to enforce the nuclear test ban treaty. Wed, 05 Jul 2023 11:51:31 EDT //www.koonmotors.com/releases/2023/07/230705115131.htm //www.koonmotors.com/releases/2023/07/230703133026.htm 一个国际研究小组已经发现a subduction zone's age affects the ability for it to recycle water between the Earth's surface and its inner layers. The more mature the subduction zone, the bigger the water storage capacity. Mon, 03 Jul 2023 13:30:26 EDT //www.koonmotors.com/releases/2023/07/230703133026.htm //www.koonmotors.com/releases/2023/06/230628201312.htm Scientists have wondered what happens to the organic and inorganic carbon that Earth's Pacific Plate carries with it as it slides into the planet's interior along the volcano-studded Ring of Fire. A new study suggests a notable amount of such subducted carbon returns to the atmosphere rather than traveling deep into Earth's mantle. Wed, 28 Jun 2023 20:13:12 EDT //www.koonmotors.com/releases/2023/06/230628201312.htm //www.koonmotors.com/releases/2023/06/230628130502.htm Many factors influence where a landslide will occur, including the shape of the terrain, its slope and drainage areas, the material properties of soil and bedrock, and environmental conditions like climate, rainfall, hydrology and ground motion resulting from earthquakes. Geologists have developed a new technique that uses artificial intelligence to better predict where and why landslides may occur could bolster efforts to protect lives and property in some of the world's most disaster-prone areas. The new method improves the accuracy and interpretability of AI-based machine-learning techniques, requires far less computing power and is more broadly applicable than traditional predictive models. Wed, 28 Jun 2023 13:05:02 EDT //www.koonmotors.com/releases/2023/06/230628130502.htm //www.koonmotors.com/releases/2023/06/230628130428.htm An international team has, for the first time, accurately determined the age of the East Anatolian fault, allowing geologists to learn more about its seismic history and tendency to produce earthquakes. Wed, 28 Jun 2023 13:04:28 EDT //www.koonmotors.com/releases/2023/06/230628130428.htm //www.koonmotors.com/releases/2023/06/230628130414.htm Seismologists agree that foreshocks are the most widely identified signal of an upcoming mainshock earthquake. But do these foreshock sequences have distinctive characteristics that separate them from aftershock sequences, and could these characteristics be used to help forecast mainshocks? Wed, 28 Jun 2023 13:04:14 EDT //www.koonmotors.com/releases/2023/06/230628130414.htm //www.koonmotors.com/releases/2023/06/230626164309.htm Researchers analyzed the source processes of the twin earthquakes that caused extensive damage in Türkiye and Syria on February 6, 2023. The results revealed that a complex fault network with bends, steps, and branches controlled the propagation speed and direction of the rupture, leading to hierarchical small to large rupture growth. Mon, 26 Jun 2023 16:43:09 EDT //www.koonmotors.com/releases/2023/06/230626164309.htm //www.koonmotors.com/releases/2023/06/230622120919.htm The first ever 3D seismic imaging of a subducting seamount shows a previously unknown sediment trail in Earth's crust off the coast of New Zealand. Scientists think the sediment patches help release tectonic pressure gradually in slow slip earthquakes instead of violent tremors. The findings will help researchers search for similar patterns at other subduction zones like Cascadia in the U.S. Pacific Northwest. Thu, 22 Jun 2023 12:09:19 EDT //www.koonmotors.com/releases/2023/06/230622120919.htm //www.koonmotors.com/releases/2023/06/230622120857.htm Porous media such as concrete physically represent a spherical packing of different components -- in this case cement, rock and water. The mechanical properties of such mixtures are still difficult to calculate due to their discretized nature. A team has now been able to investigate an unexpected property of mixtures of granular media consisting of soft and stiff spherical particles. For this purpose, a combination of ultrasound investigations and X-ray computed tomographic imaging was employed, allowing a three-dimensional (3D) characterization and evaluation. The discovery could contribute to safer future building in earthquake zones. Thu, 22 Jun 2023 12:08:57 EDT //www.koonmotors.com/releases/2023/06/230622120857.htm //www.koonmotors.com/releases/2023/06/230620174452.htm A team of scientists has observed past episodic intraplate magmatism and corroborated the existence of a partial melt channel at the base of the Cocos Plate. Situated 60 kilometers beneath the Pacific Ocean floor, the magma channel covers more than 100,000 square kilometers, and originated from the Galápagos Plume more than 20 million years ago, supplying melt for multiple magmatic events -- and persisting today. Tue, 20 Jun 2023 17:44:52 EDT //www.koonmotors.com/releases/2023/06/230620174452.htm //www.koonmotors.com/releases/2023/06/230614220611.htm New finding contradicts previous assumptions about the role of mobile plate tectonics in the development of life on Earth. Moreover, the data suggests that 'when we're looking for exoplanets that harbor life, the planets do not necessarily need to have plate tectonics,' says the lead author of a new paper. Wed, 14 Jun 2023 22:06:11 EDT //www.koonmotors.com/releases/2023/06/230614220611.htm //www.koonmotors.com/releases/2023/06/230613190839.htm Computer models confirm that the African Superplume is responsible for the unusual deformations, as well as rift-parallel seismic anisotropy observed beneath the East African Rift System. Tue, 13 Jun 2023 19:08:39 EDT //www.koonmotors.com/releases/2023/06/230613190839.htm //www.koonmotors.com/releases/2023/06/230609125645.htm The new study used a model of volcano fracturing to interpret patterns of earthquakes and ground uplift, and concluded that parts of the volcano had been stretched nearly to breaking point. Fri, 09 Jun 2023 12:56:45 EDT //www.koonmotors.com/releases/2023/06/230609125645.htm //www.koonmotors.com/releases/2023/06/230606164836.htm Geochemists report findings from collected and analyzed helium and carbon isotopic data from springs along a nearly 250-mile segment of Alaska's Denali Fault. The fault's mantle fluid flow rates, they report, fall in the range observed for the world's other major and active strike-slip faults that form plate boundaries. Tue, 06 Jun 2023 16:48:36 EDT //www.koonmotors.com/releases/2023/06/230606164836.htm //www.koonmotors.com/releases/2023/05/230524181903.htm Seismologists used a powerful supercomputer that incorporated data-infused and physics-based models to identify the link between the 2019 Ridgecrest earthquakes. Wed, 24 May 2023 18:19:03 EDT //www.koonmotors.com/releases/2023/05/230524181903.htm //www.koonmotors.com/releases/2023/05/230517122137.htm By combining the scientific powerhouses of genetics and geology, researchers have identified a new area of coastal uplift, which had been hiding in plain sight. Wed, 17 May 2023 12:21:37 EDT //www.koonmotors.com/releases/2023/05/230517122137.htm //www.koonmotors.com/releases/2023/04/230425111152.htm Researchers develop an early warning system that combines acoustic technology with AI to immediately classify earthquakes and determine potential tsunami risk. They propose using underwater microphones, called hydrophones, to measure the acoustic radiation produced by the earthquake, which carries information about the tectonic event and travels significantly faster than tsunami waves. The computational model triangulates the source of the earthquake and AI algorithms classify its slip type and magnitude. It then calculates important properties like effective length and width, uplift speed, and duration, which dictate the size of the tsunami. Tue, 25 Apr 2023 11:11:52 EDT //www.koonmotors.com/releases/2023/04/230425111152.htm //www.koonmotors.com/releases/2023/04/230421092025.htm Faults in the Ridgecrest, California area were very sensitive to solid earth tidal stresses in the year and a half before the July 2019 Ridgecrest earthquake sequence. Fri, 21 Apr 2023 09:20:25 EDT //www.koonmotors.com/releases/2023/04/230421092025.htm //www.koonmotors.com/releases/2023/04/230420171646.htm Tsunami deposits identified in a coastal mangrove pond in Northwest Puerto Rico could have come from a megathrust earthquake at the Puerto Rico Trench that occurred between 1470 and 1530, according to new research. Thu, 20 Apr 2023 17:16:46 EDT //www.koonmotors.com/releases/2023/04/230420171646.htm //www.koonmotors.com/releases/2023/04/230420135304.htm Using remote sensing, geophysicists have documented the massive Feb. 6 quake that killed more than 50,000 people in Eastern Turkey and toppled more than 100,000 buildings. Alarmingly, researchers found that a section of the fault remains unbroken and locked -- a sign that the plates there may, when friction intensifies, generate another magnitude 6.8 earthquake when it finally gives way. Thu, 20 Apr 2023 13:53:04 EDT //www.koonmotors.com/releases/2023/04/230420135304.htm //www.koonmotors.com/releases/2023/04/230420110151.htm Even though most of the economic losses are concentrated in California and along the West Coast due to that region's high seismic hazard levels, significant population, and building exposure, earthquake risk is spread throughout the country. For example, there is a combined $3.1 billion per year in projected losses across the central U.S., Rocky Mountain region, Alaska, Hawaii, Puerto Rico and the Virgin Islands. Thu, 20 Apr 2023 11:01:51 EDT //www.koonmotors.com/releases/2023/04/230420110151.htm //www.koonmotors.com/releases/2023/04/230419125108.htm Earthquakes and volcanism occur as a result of plate tectonics. The movement of tectonic plates themselves is largely driven by the process known as subduction. The question of how new active subduction zones come into being, however, is still under debate. An example of this is the volcanic Lesser Antilles arc in the Caribbean. A research team recently developed models that simulated the occurrences in the Caribbean region during the Cretaceous, when a subduction event in the Eastern Pacific led to the formation of a new subduction zone in the Atlantic. The computer simulations show how the collision of the old Caribbean plateau with the Greater Antilles arc contributed to the creation of this new Atlantic subduction zone. Some 86 million years ago, the triggered processes subsequently resulted in a major mantle flow and thus to the development of the Caribbean large igneous province. Wed, 19 Apr 2023 12:51:08 EDT //www.koonmotors.com/releases/2023/04/230419125108.htm //www.koonmotors.com/releases/2023/04/230411105851.htm Oceanographers discovered warm, chemically distinct liquid shooting up from the seafloor about 50 miles off Newport. They named the unique underwater spring 'Pythia's Oasis.' Observations suggest the spring is sourced from water 2.5 miles beneath the seafloor at the plate boundary, regulating stress on the offshore subduction zone fault. Tue, 11 Apr 2023 10:58:51 EDT //www.koonmotors.com/releases/2023/04/230411105851.htm //www.koonmotors.com/releases/2023/04/230404140735.htm Researchers used small zircon crystals to unlock information about magmas and plate tectonic activity in early Earth. The research provides chemical evidence that plate tectonics was most likely occurring more than 4.2 billion years ago when life is thought to have first formed on our planet. This finding could prove beneficial in the search for life on other planets. Tue, 04 Apr 2023 14:07:35 EDT //www.koonmotors.com/releases/2023/04/230404140735.htm //www.koonmotors.com/releases/2023/03/230306143345.htm After an earthquake, it is crucial in the early phase of disaster management to obtain a rapid assessment of the severity of the impact on the affected population in order to be able to initiate adequate emergency measures. A first quick and good assessment of whether an earthquake causes severe or minor damage can often be given after only 10 minutes by information from affected people about the 'felt intensity' of the earthquake. Mon, 06 Mar 2023 14:33:45 EST //www.koonmotors.com/releases/2023/03/230306143345.htm //www.koonmotors.com/releases/2023/02/230222115954.htm A new study suggests there may be a layer of surprisingly fluid rock ringing the Earth, at the very bottom of the upper mantle. Wed, 22 Feb 2023 11:59:54 EST //www.koonmotors.com/releases/2023/02/230222115954.htm //www.koonmotors.com/releases/2023/02/230221113140.htm 数据捕获从地震波earthqu所致akes has shed new light on the deepest parts of Earth's inner core, according to seismologists. Tue, 21 Feb 2023 11:31:40 EST //www.koonmotors.com/releases/2023/02/230221113140.htm //www.koonmotors.com/releases/2023/02/230216161150.htm New research on friction between faults could aid in predicting the world's most powerful earthquakes. Researchers discovered that fault surfaces bond together, or heal, after an earthquake. A fault that is slow to heal is more likely to move harmlessly, while one that heals quickly is more likely to stick until it breaks in a large, damaging earthquake. Tests allowed them to calculate a slow, harmless type of tremor. The discovery alone won't allow scientists to predict when the next big one will strike but it does give researchers a valuable new way to investigate the causes and potential for a large, damaging earthquake to happen, and guide efforts to monitor large faults like Cascadia in the Pacific Northwest. Thu, 16 Feb 2023 16:11:50 EST //www.koonmotors.com/releases/2023/02/230216161150.htm //www.koonmotors.com/releases/2023/02/230208191727.htm Cornell University researchers have unearthed precise, microscopic clues to where magma is stored, offering a way to better assess the risk of volcanic eruptions. Wed, 08 Feb 2023 19:17:27 EST //www.koonmotors.com/releases/2023/02/230208191727.htm //www.koonmotors.com/releases/2023/02/230206130628.htm Scientists have discovered a new layer of partly molten rock under the Earth's crust that might help settle a long-standing debate about how tectonic plates move. The molten layer is located about 100 miles from the surface and is part of the asthenosphere, which is important for plate tectonics because it forms a relatively soft boundary that lets tectonic plates move through the mantle. The researchers found, however that the melt does not appear to notably influence the flow of mantle rocks. Instead, they say, the discovery confirms that the convection of heat and rock in the mantle are the prevailing influence on the motion of the plates. Mon, 06 Feb 2023 13:06:28 EST //www.koonmotors.com/releases/2023/02/230206130628.htm //www.koonmotors.com/releases/2023/01/230127131154.htm A 'back-projection' technique reveals new details of the volcanic eruption in Tonga that literally shook the world. Fri, 27 Jan 2023 13:11:54 EST //www.koonmotors.com/releases/2023/01/230127131154.htm //www.koonmotors.com/releases/2023/01/230118133942.htm New findings begin to fill major gaps in understanding about how geological faults behave and appear as they deepen, and they could eventually help lead future researchers to develop better earthquake models on strike-slip faults, regions with frequent and major earthquakes. Wed, 18 Jan 2023 13:39:42 EST //www.koonmotors.com/releases/2023/01/230118133942.htm //www.koonmotors.com/releases/2023/01/230104115015.htm A new study has found that individuals from disadvantaged backgrounds are more likely to experience disaster-related home loss, and they are also more likely to develop functional limitations following the disaster. Wed, 04 Jan 2023 11:50:15 EST //www.koonmotors.com/releases/2023/01/230104115015.htm //www.koonmotors.com/releases/2022/12/221222162413.htm A machine-learning algorithm reveals the shape of massive subterranean structures linking active volcanoes. Thu, 22 Dec 2022 16:24:13 EST //www.koonmotors.com/releases/2022/12/221222162413.htm //www.koonmotors.com/releases/2022/12/221219123859.htm Researchers suggest how scientists can circumvent the need for massive data sets to forecast extreme events with the combination of an advanced machine learning system and sequential sampling techniques. Mon, 19 Dec 2022 12:38:59 EST //www.koonmotors.com/releases/2022/12/221219123859.htm //www.koonmotors.com/releases/2022/12/221215104659.htm A study has shown that the prevalence of non-communicable diseases, which included hypertension, hyperlipidemia, diabetes, and mental disorders, increased after the Fukushima disaster and the COVID-19 outbreak. These findings emphasize the importance of improving post-disaster health promotion strategies and recommendations. Thu, 15 Dec 2022 10:46:59 EST //www.koonmotors.com/releases/2022/12/221215104659.htm //www.koonmotors.com/releases/2022/12/221208114802.htm Evidence that a complete stress release may have contributed to the 2011 Tohoku earthquake that broke records. Both sedimentary formations above and below the plate boundary fault lie in the stress state of normal faults in which vertical stress is greater than maximum horizontal stress. The new data show good consistency with previous results above the fault -- at the boundary between the North American plate and the subducting Pacific plate -- suggesting that combining geophysical data and core samples to comprehensively investigate stress states is effective. Thu, 08 Dec 2022 11:48:02 EST //www.koonmotors.com/releases/2022/12/221208114802.htm //www.koonmotors.com/releases/2022/11/221130135723.htm Satellite observations have revealed that weak seismic ground shaking can trigger powerful landslide acceleration -- even several years after a significant earthquake. Wed, 30 Nov 2022 13:57:23 EST //www.koonmotors.com/releases/2022/11/221130135723.htm //www.koonmotors.com/releases/2022/11/221130135627.htm Earthquakes are notoriously hard to predict, and so too are the usually less-severe aftershocks that often follow a major seismic event. Wed, 30 Nov 2022 13:56:27 EST //www.koonmotors.com/releases/2022/11/221130135627.htm //www.koonmotors.com/releases/2022/11/221121105258.htm Researchers have developed a novel method for measuring the earth's crust on the seafloor. A lightweight geodetic measurement device was mounted on a sea-surface landing unmanned aerial vehicle (UAV). The mobility of this new system will enable rapid, efficient collection of real-time deep seafloor information, which is critical for understanding earthquake risk, as well as various other oceanographic observations. Mon, 21 Nov 2022 10:52:58 EST //www.koonmotors.com/releases/2022/11/221121105258.htm //www.koonmotors.com/releases/2022/11/221121105157.htm Volcanic eruptions are dangerous and difficult to predict. A team has found that the ratio of atoms in specific gases released from volcanic fumaroles (gaps in the Earth's surface) can provide an indicator of what is happening to the magma deep below -- similar to taking a blood test to check your health. This can indicate when things might be 'heating up.' Specifically, changes in the ratio of argon-40 and helium-3 can indicate how frothy the magma is, which signals the risk of different types of eruption. Understanding which ratios of which gases indicate a certain type of magma activity is a big step. Next, the team hopes to develop portable equipment which can provide on-site, real-time measurements for a 24/7 volcanic activity monitoring and early warning system. Mon, 21 Nov 2022 10:51:57 EST //www.koonmotors.com/releases/2022/11/221121105157.htm //www.koonmotors.com/releases/2022/11/221110101756.htm On March 11, 2011, multiple catastrophes in Japan were triggered by the Great East Japan Earthquake, including the nuclear accident at the Fukushima Daiichi Nuclear Power Plant. This event, also known as the 3/11 disaster, is what is known as a compound disaster. Now that over a decade has passed since this event, researchers are investigating how to prevent the next compound disaster. Thu, 10 Nov 2022 10:17:56 EST //www.koonmotors.com/releases/2022/11/221110101756.htm //www.koonmotors.com/releases/2022/11/221107114500.htm Subduction zones, where one tectonic plate slides beneath another, produce the most devastating seismic, volcanic, and landslide hazards on the planet. A new report presents an ambitious plan to make major advances in understanding subduction zone hazards by bringing together a diverse community of scientists in a long-term collaborative effort, deploying new instrumentation in subduction zones, and developing more sophisticated and accurate models. Mon, 07 Nov 2022 11:45:00 EST //www.koonmotors.com/releases/2022/11/221107114500.htm //www.koonmotors.com/releases/2022/11/221104093243.htm 地下水是一个环境d industrial resource, but a new study indicates it is also an important resource in disaster prevention. Researchers conducted research surveys of 91 well owners and 328 welfare facilities affected by the 2016 Kumamoto Earthquake. The surveys clarified groundwater use following the earthquake and policy issues that could make the use of emergency wells more effective in the wake of future disasters. The surveys' findings provide useful data for city governments that have installed or are considering installing emergency wells. Fri, 04 Nov 2022 09:32:43 EDT //www.koonmotors.com/releases/2022/11/221104093243.htm //www.koonmotors.com/releases/2022/10/221031212800.htm About 14% of magnitude 6.7 or greater strike-slip earthquakes since 2000 have been supershear. That's 50% more than previously thought. Supershear earthquakes occur when a fault ruptures faster than seismic shear waves can travel through rock. The events were thought to be rare because scientists had mostly looked for them on land. The findings suggest that disaster planning assessments should include whether a fault is able to produce supershear quakes, which are potentially more destructive than other types. Mon, 31 Oct 2022 21:28:00 EDT //www.koonmotors.com/releases/2022/10/221031212800.htm //www.koonmotors.com/releases/2022/10/221021132724.htm One natural disaster can knock out electric service to millions. A new study suggests that back-to-back disasters could cause catastrophic damage, but the research also identifies new ways to monitor and maintain power grids. Fri, 21 Oct 2022 13:27:24 EDT //www.koonmotors.com/releases/2022/10/221021132724.htm //www.koonmotors.com/releases/2022/10/221020201448.htm Magma beneath long-dormant Mount Edgecumbe volcano in Southeast Alaska has been moving upward through Earth's crust, according to research the Alaska Volcano Observatory rapidly produced using a new method. Thu, 20 Oct 2022 20:14:48 EDT //www.koonmotors.com/releases/2022/10/221020201448.htm //www.koonmotors.com/releases/2022/10/221013145642.htm Rapidly evolving floods are a major and growing hazard worldwide. Currently, their onset and evolution is hard to identify using existing systems. However, seismic sensors already in place to detect earthquakes could be a solution to this problem. Researchers show that a seismometer can sense a flood, such as the devastating one that hit Germany in July 2021, up to 1.5 km away. This could act as an early warning to save lives and lessen damage. They also found that being able to measure the 'seismic footprint' of the flood provides information on its magnitude, velocity and trajectory in real time, which could be used for future flood protection. Thu, 13 Oct 2022 14:56:42 EDT //www.koonmotors.com/releases/2022/10/221013145642.htm //www.koonmotors.com/releases/2022/10/221012132541.htm A new large-scale analysis of hillslope connectivity at the continental scale was recently published. The study gives new understanding of mechanisms that determine how effectively hillslopes drive floods and landslides, as well as promote the presence of wetlands. Wed, 12 Oct 2022 13:25:41 EDT //www.koonmotors.com/releases/2022/10/221012132541.htm //www.koonmotors.com/releases/2022/10/221011105757.htm An artificial-intelligence approach borrowed from natural-language processing -- much like language translation and autofill for text on your smart phone -- can predict future fault friction and the next failure time with high resolution in laboratory earthquakes. The technique, applying AI to the fault's acoustic signals, advances previous work and goes beyond by predicting aspects of the future state of the fault's physical system. Tue, 11 Oct 2022 10:57:57 EDT //www.koonmotors.com/releases/2022/10/221011105757.htm //www.koonmotors.com/releases/2022/10/221006160638.htm Some 66 million years ago, a 10-kilometer asteroid hit Earth, triggering the extinction of the dinosaurs. New evidence suggests that the Chicxulub impact also triggered an earthquake so massive that it shook the planet for weeks to months after the collision. The amount of energy released in this 'mega-earthquake' is estimated at 10 to the exponent 23 joules, which is about 50,000 times more energy than was released in the magnitude 9.1 Sumatra earthquake in 2004. Thu, 06 Oct 2022 16:06:38 EDT //www.koonmotors.com/releases/2022/10/221006160638.htm //www.koonmotors.com/releases/2022/09/220927133413.htm Trapped inside the shoreline of a bay, the resonant interactions of a tsunami with regular waves can prolong the tsunami disturbance. For the 2021 magnitude 7 Acapulco, Mexico earthquake and tsunami, edge waves in the bay and the short continental shelf also had a surprisingly significant effect on the tsunami's duration, according to a new study. Tue, 27 Sep 2022 13:34:13 EDT //www.koonmotors.com/releases/2022/09/220927133413.htm //www.koonmotors.com/releases/2022/09/220923090843.htm Scientists who drilled deeper into an undersea earthquake fault than ever before have found that the tectonic stress in Japan's Nankai subduction zone is less than expected. The findings are a puzzle but will help scientists home in on the link between tectonic forces and the earthquake cycle and potentially lead to better earthquake forecasts, both at Nankai and other megathrust faults such as Cascadia in the Pacific Northwest. The drilling reached over two miles into the Nankai subduction zone and was conducted in 2018 with the IODP scientific drilling vessel Chikyu. Fri, 23 Sep 2022 09:08:43 EDT //www.koonmotors.com/releases/2022/09/220923090843.htm //www.koonmotors.com/releases/2022/09/220915165304.htm It isn't every day that we learn something that fundamentally changes how we understand our world. But for volcanologists across the globe, such a revelation has occurred. Thu, 15 Sep 2022 16:53:04 EDT //www.koonmotors.com/releases/2022/09/220915165304.htm //www.koonmotors.com/releases/2022/08/220830203129.htm Scientists discover that a potential 'diamond factory' may have existed at Earth's core-mantle boundary for billions of years. Tue, 30 Aug 2022 20:31:29 EDT //www.koonmotors.com/releases/2022/08/220830203129.htm