//www.koonmotors.com/news/earth_climate/tsunamis/ Tsunami News. Causes of tsunamis, status of tsunami devastated regions, and locations where scientists predict tsunamis might occur in the future. Read about tsunamis and earthquakes. en-us Thu, 07 Sep 2023 22:54:19 EDT Thu, 07 Sep 2023 22:54:19 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/earth_climate/tsunamis/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/07/230731151555.htm Slow earthquakes are slow-slip phenomena that last 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/2023/04/230425111152.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/2023/04/230414201818.htm The 2022 eruption of a submarine volcano in Tonga was more powerful than the largest U.S. nuclear explosion, according to a new study. The 15-megaton volcanic explosion from Hunga Tonga-Hunga Ha'apai, one of the largest natural explosions in more than a century, generated a mega-tsunami with waves up to 45-meters high (148 feet) along the coast of Tonga's Tofua Island and waves up to 17 meters (56 feet) on Tongatapu, the country's most populated island. Fri, 14 Apr 2023 20:18:18 EDT //www.koonmotors.com/releases/2023/04/230414201818.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/2023/01/230127131154.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/2023/01/230104115015.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/2022/12/221212180513.htm The powerful volcanic eruption in January 2022 created ripple effects throughout the world's atmosphere and oceans. Analysis of the Hunga Tonga eruption shows how signals from the ionosphere could help monitor future volcanoes and tsunamis. Mon, 12 Dec 2022 18:05:13 EST //www.koonmotors.com/releases/2022/12/221212180513.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/2022/11/221121105258.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/2022/11/221104093243.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/2022/10/221006160638.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/2022/10/221004105010.htm The miles-wide asteroid that struck Earth 66 million years ago wiped out nearly all the dinosaurs and roughly three-quarters of the planet's plant and animal species. Tue, 04 Oct 2022 10:50:10 EDT //www.koonmotors.com/releases/2022/10/221004105010.htm //www.koonmotors.com/releases/2022/09/220927133413.htm 被困在海湾的海岸线,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/2022/08/220819115037.htm New research reveals more about the magnitude of January eruption, as researchers call for better preparedness The eruption of the Hunga Tonga-Hunga Ha'apai volcano in January created an initial wave 90 meters high -- almost the height of the Statue of Liberty (93m). Tsunami expert calls for better warning systems to detect volcanic eruptions, saying systems are '30 years behind' comparable earthquake detection tools. Fri, 19 Aug 2022 11:50:37 EDT //www.koonmotors.com/releases/2022/08/220819115037.htm //www.koonmotors.com/releases/2022/07/220714091104.htm Using data from the eruption of the underwater volcano near Tonga in 2022, researchers used disturbances in Earth's upper atmosphere to track the airwaves that cause tsunami. Their findings may lead to speedier predictions of these giant waves. Thu, 14 Jul 2022 09:11:04 EDT //www.koonmotors.com/releases/2022/07/220714091104.htm //www.koonmotors.com/releases/2022/06/220613124541.htm Scientists say they have identified the exact mechanism responsible for the exceptional tsunami that spread quickly across the world after the colossal eruption of the Tonga volcano earlier this year. Mon, 13 Jun 2022 12:45:41 EDT //www.koonmotors.com/releases/2022/06/220613124541.htm //www.koonmotors.com/releases/2022/06/220603100140.htm No one is at their best when they are dehydrated and that goes for tectonic plates too. Researchers using a thermomechanical model of the Alaska subduction zone indicates that plate dehydration is at its highest in the region where low-frequency tremors occur, suggesting that the expelled water contributes towards these seimic events. This improved understanding will contribute to better predictions of future earthquakes. Fri, 03 Jun 2022 10:01:40 EDT //www.koonmotors.com/releases/2022/06/220603100140.htm //www.koonmotors.com/releases/2022/05/220526095600.htm USC researchers have found a correlation between tsunami severity and the width of the outer wedge -- the area between the continental shelf and deep trenches where large tsunamis emerge -- that helps explain how underwater seismic events generate large tsunamis. Thu, 26 May 2022 09:56:00 EDT //www.koonmotors.com/releases/2022/05/220526095600.htm //www.koonmotors.com/releases/2022/05/220512164051.htm The massive Jan. 15, 2022, eruption of the Hunga submarine volcano in the South Pacific Ocean created a variety of atmospheric wave types, including booms heard 6,200 miles away in Alaska. It also created an atmospheric pulse that caused an unusual tsunami-like disturbance that arrived at Pacific shores sooner than the actual tsunami. Thu, 12 May 2022 16:40:51 EDT //www.koonmotors.com/releases/2022/05/220512164051.htm //www.koonmotors.com/releases/2022/05/220512092652.htm A new method of detecting mega earthquakes, which picks up on the gravity waves they generate by using deep-learning models, can estimate earthquake magnitude in real time and provide earlier warning of tsunamis. Thu, 12 May 2022 09:26:52 EDT //www.koonmotors.com/releases/2022/05/220512092652.htm //www.koonmotors.com/releases/2022/04/220428104005.htm A new method for detecting tsunamis using existing GPS satellites orbiting Earth could serve as an effective warning system for countries worldwide, according to a new study. Thu, 28 Apr 2022 10:40:05 EDT //www.koonmotors.com/releases/2022/04/220428104005.htm //www.koonmotors.com/releases/2022/04/220413104201.htm Highly energetic particles called muons are ever present in the atmosphere and pass through even massive objects with ease. Sensitive detectors installed along the Tokyo Bay tunnel measure muons passing through the sea above them. This allows for changes in the volume of water above the tunnel to be calculated. For the first time, this method was used to accurately detect a mild tsunami following a typhoon in 2021. Wed, 13 Apr 2022 10:42:01 EDT //www.koonmotors.com/releases/2022/04/220413104201.htm //www.koonmotors.com/releases/2022/03/220329142523.htm On January 15, the volcano Hunga Tonga-Hunga Ha'apai devastated the nation of Tonga. The eruption triggered tsunamis as far afield as the Caribbean and generated atmospheric waves that travelled around the globe several times. Meanwhile, the volcano's plume shot gas and ash through the stratosphere into the lower mesosphere. Tue, 29 Mar 2022 14:25:23 EDT //www.koonmotors.com/releases/2022/03/220329142523.htm //www.koonmotors.com/releases/2022/03/220310115140.htm The Global Navigation Satellite System associated with a Japanese cell phone carrier can enhance monitoring of crustal deformation changes for earthquake early warning models. Thu, 10 Mar 2022 11:51:40 EST //www.koonmotors.com/releases/2022/03/220310115140.htm //www.koonmotors.com/releases/2022/02/220224180324.htm An earth scientist has discovered evidence of an ancient underwater landslide and associated tsunami in the Gulf of Aqaba, a subsidiary of the Red Sea, that should serve as a warning for many nations in the Middle East. Thu, 24 Feb 2022 18:03:24 EST //www.koonmotors.com/releases/2022/02/220224180324.htm //www.koonmotors.com/releases/2022/02/220208124428.htm Scientists have uncovered the source of a mysterious 2021 tsunami that sent waves around the globe. In August 2021, a magnitude 7.5 earthquake hit near the South Sandwich Islands, creating a tsunami that rippled around the globe. The epicenter was 47 kilometers below the Earth's surface -- too deep to initiate a tsunami -- and the rupture was nearly 400 kilometers long, which should have generated a much larger earthquake. Tue, 08 Feb 2022 12:44:28 EST //www.koonmotors.com/releases/2022/02/220208124428.htm //www.koonmotors.com/releases/2022/02/220203103012.htm 今天因为——其中包括Iwate and parts of Aomori and Miyagi - has been prone to tsunamis throughout its history. Analyses of tsunami deposits along the coast, however, haven't always provided conclusive findings. Now, a research team has utilized a new radiocarbon dating method to clarify the region's tsunami history and better understand the frequency at which these disasters occur. Thu, 03 Feb 2022 10:30:12 EST //www.koonmotors.com/releases/2022/02/220203103012.htm //www.koonmotors.com/releases/2022/01/220114192600.htm The dramatic collapse of Indonesia's Anak Krakatau volcano in December 2018 resulted from long-term destabilising processes, and was not triggered by any distinct changes in the magmatic system that could have been detected by current monitoring techniques, new research has found. Fri, 14 Jan 2022 19:26:00 EST //www.koonmotors.com/releases/2022/01/220114192600.htm //www.koonmotors.com/releases/2021/12/211221133540.htm A new study finds the magnetic field generated by a tsunami can be detected a few minutes earlier than changes in sea level and could improve warnings of these giant waves. Tue, 21 Dec 2021 13:35:40 EST //www.koonmotors.com/releases/2021/12/211221133540.htm //www.koonmotors.com/releases/2021/12/211217172801.htm Earthquakes of similar magnitude can cause tsunamis of greatly varying sizes. This commonly observed, but not well-understood phenomenon has hindered reliable warnings of local tsunamis. This research provides new insight that connects the characteristics of earthquakes -- magnitude, depth where two tectonic plates slip past each other and the rigidity of the plates involved -- with the potential size of a resulting tsunami. Fri, 17 Dec 2021 17:28:01 EST //www.koonmotors.com/releases/2021/12/211217172801.htm //www.koonmotors.com/releases/2021/12/211209124241.htm A large earthquake off the coast of south-central Chile in 1737 may have caused a substantial tsunami that was absent from historical records. Historical records are used to predict how often tsunamis are likely to occur in a region in the future. Until now, it was previously believed that tsunami-causing earthquakes had occurred in this area of Chile three times since the 1570s, including after the magnitude 9.5 earthquake of 1960. However, this discovery of an unrecorded tsunami means that tsunamis may have struck the Chilean coast more frequently than previously believed. This means the average time between historical tsunami occurrences could be significantly reduced, to an average of 130 years. Thu, 09 Dec 2021 12:42:41 EST //www.koonmotors.com/releases/2021/12/211209124241.htm //www.koonmotors.com/releases/2021/12/211208090014.htm Rising sea levels are already impacting coastal residents and aggravating existing coastal hazards, such as flooding during high tides and storm surges. New research indicates that future sea-level rise will also have impacts on the heights of future tsunamis. Wed, 08 Dec 2021 09:00:14 EST //www.koonmotors.com/releases/2021/12/211208090014.htm //www.koonmotors.com/releases/2021/11/211104115307.htm Researchers investigated the long-term contamination of Lake Onuma in Japan resulting from the 2011 Fukushima Daiichi nuclear disaster. They devised a formula based on a framework known as the fractional diffusion model to predict the radioactive contamination of the lake for up to about 30 years after the Fukushima accident. The results suggest that the decrease in radioactivity concentration will be slower than predicted by the conventional two-component decay function model. Thu, 04 Nov 2021 11:53:07 EDT //www.koonmotors.com/releases/2021/11/211104115307.htm //www.koonmotors.com/releases/2021/09/210902125108.htm Researchers have discovered geologic evidence that unusually large earthquakes and tsunamis from the Tokyo region -- located near tectonic plate boundaries that are recognized as a seismic hazard source -- may be traceable to a previously unconsidered plate boundary. Thu, 02 Sep 2021 12:51:08 EDT //www.koonmotors.com/releases/2021/09/210902125108.htm //www.koonmotors.com/releases/2021/08/210823170105.htm Core samples taken from a stand of old growth Douglas-fir trees in the South Beach area just south of Newport showed reduced growth following the 9.0 earthquake and subsequent tsunami that struck the Pacific Northwest in 1700. Mon, 23 Aug 2021 17:01:05 EDT //www.koonmotors.com/releases/2021/08/210823170105.htm //www.koonmotors.com/releases/2021/07/210707112513.htm The Hikurangi Margin, located off the east coast of the North Island of New Zealand, is partly responsible for the more than 15,000 earthquakes the region experiences each year. Scientists have been working to understand why this plate boundary produces both imperceptible silent earthquakes, but also potentially major ones. A study offers new perspective and possible answers. Wed, 07 Jul 2021 11:25:13 EDT //www.koonmotors.com/releases/2021/07/210707112513.htm //www.koonmotors.com/releases/2021/06/210621160524.htm “海啸”这个词将立即在脑海havoc that can be wrought by these uniquely powerful waves. The tsunamis we hear about most often are caused by undersea earthquakes, and the waves they generate can travel at speeds of up to 250 miles per hour and reach tens of meters high when they make landfall and break. They can cause massive flooding and rapid widespread devastation in coastal areas, as happened in Southeast Asia in 2004 and in Japan in 2011. Mon, 21 Jun 2021 16:05:24 EDT //www.koonmotors.com/releases/2021/06/210621160524.htm //www.koonmotors.com/releases/2021/06/210621123816.htm 一组科学家已经开发出一种新的模式simulating both iceberg calving and the tsunamis that are triggered as a result. Their method can help improve hazard assessment in coastal areas and refine the empirical calving models used to evaluate rising sea levels. Mon, 21 Jun 2021 12:38:16 EDT //www.koonmotors.com/releases/2021/06/210621123816.htm //www.koonmotors.com/releases/2021/05/210527112512.htm A small Japanese fishing community devastated by the Great East Japan Earthquake and Tsunami of 2011 managed to recover from the disaster through cooperative community activity despite the propensity for individualist-competitive behavior within fisheries - cooperative activity that continued many years later. Thu, 27 May 2021 11:25:12 EDT //www.koonmotors.com/releases/2021/05/210527112512.htm //www.koonmotors.com/releases/2021/05/210525101645.htm Scientists have used seismic 'CT' scans and supercomputers to reveal the inner workings of a region off the coast of New Zealand known to produce slow motion tremors, also called slow slip earthquakes. The insights help scientists pinpoint why tectonic energy at subduction zones is sometimes released gently as slow slip, and other times as devastating, high-magnitude earthquakes. Tue, 25 May 2021 10:16:45 EDT //www.koonmotors.com/releases/2021/05/210525101645.htm //www.koonmotors.com/releases/2021/05/210517144740.htm A recent article reveals new data on the Anak Krakatau volcano flank collapse, which was triggered by an eruption on Detcember 22, 2018. Mon, 17 May 2021 14:47:40 EDT //www.koonmotors.com/releases/2021/05/210517144740.htm //www.koonmotors.com/releases/2021/05/210512083435.htm A 'slow-motion' earthquake lasting 32 years - the slowest ever recorded - eventually led to the catastrophic 1861 Sumatra earthquake, researchers have found. Wed, 12 May 2021 08:34:35 EDT //www.koonmotors.com/releases/2021/05/210512083435.htm //www.koonmotors.com/releases/2021/05/210511123910.htm The most energetic earthquakes occur where oceanic plates submerge beneath continental plates during plate tectonics. Quakes in these subduction zone settings commonly carry the risk of triggering severe tsunamis. But when the earth shook with a moment magnitude of 8.1 near the northern Chilean city of Iquique on 1 April 2014, the resulting tsunami was relatively small. A unique seismological data set provides a possible explanation. Tue, 11 May 2021 12:39:10 EDT //www.koonmotors.com/releases/2021/05/210511123910.htm //www.koonmotors.com/releases/2021/05/210503151304.htm A new study found overlooked tsunami hazards related to undersea, near-shore strike-slip faults, especially for coastal cities adjacent to faults that traverse inland bays. Several areas around the world may fall into this category, including the San Francisco Bay area, Izmit Bay in Turkey and the Gulf of Al-Aqaba in Egypt. Mon, 03 May 2021 15:13:04 EDT //www.koonmotors.com/releases/2021/05/210503151304.htm //www.koonmotors.com/releases/2021/05/210503113946.htm Two of the most destructive forces of nature - earthquakes and tsunamis - might actually be more of a threat than current estimates according to new research. Mon, 03 May 2021 11:39:46 EDT //www.koonmotors.com/releases/2021/05/210503113946.htm //www.koonmotors.com/releases/2021/04/210423130231.htm A deep spatiotemporal neural network trained on more than 36,000 earthquakes offers a new way of quickly predicting ground shaking intensity once an earthquake is underway, researchers report. Fri, 23 Apr 2021 13:02:31 EDT //www.koonmotors.com/releases/2021/04/210423130231.htm //www.koonmotors.com/releases/2021/04/210420160912.htm The famous 1700 Cascadia earthquake that altered the coastline of western North America and sent a tsunami across the Pacific Ocean to Japan may have been one of a sequence of earthquakes, according to new research. Tue, 20 Apr 2021 16:09:12 EDT //www.koonmotors.com/releases/2021/04/210420160912.htm //www.koonmotors.com/releases/2021/04/210419135652.htm Data from a GPS network in Colombia have revealed a shallow and fully locked part on the Caribbean subduction zone in the country that suggests a possible large earthquake and tsunami risk for the northwest region. Mon, 19 Apr 2021 13:56:52 EDT //www.koonmotors.com/releases/2021/04/210419135652.htm //www.koonmotors.com/releases/2021/04/210401151245.htm On the afternoon of April 13, 2018, a large wave of water surged across Lake Michigan and flooded the shores of the picturesque beach town of Ludington, Michigan, damaging homes and boat docks, and flooding intake pipes. Thanks to a local citizen's photos and other data, scientists reconstructed the event in models and determined this was the first ever documented meteotsunami in the Great Lakes caused by an atmospheric inertia-gravity wave. Thu, 01 Apr 2021 15:12:45 EDT //www.koonmotors.com/releases/2021/04/210401151245.htm //www.koonmotors.com/releases/2021/03/210324142845.htm The wrong type of earthquake in an area where there should not have been an earthquake led researchers to uncover the cause for this unexpected strike-slip earthquake -- where two pieces of crust slide past each other on a fault -- in places where subduction zone earthquakes -- one geologic plate slipping beneath another -- are common. Wed, 24 Mar 2021 14:28:45 EDT //www.koonmotors.com/releases/2021/03/210324142845.htm //www.koonmotors.com/releases/2021/03/210322093727.htm Using a newly developed flexible, finite-fault inversion framework based on seismic P waves, a new study confirms that the magnitude 7.9 Gulf of Alaska earthquake of January 23, 2018 involved the multi-shock irregular rupture of a complex conjugate fault system with both east-west- and north-south-oriented segments, and found that this irregular rupture was associated with pre-existing bathymetric features. Mon, 22 Mar 2021 09:37:27 EDT //www.koonmotors.com/releases/2021/03/210322093727.htm //www.koonmotors.com/releases/2021/03/210318170319.htm Glaciers in Southeast Alaska have been melting since the end of the Little Ice Age, many of which are in close proximity to strike-slip faults. When these glaciers melt, the land begins to rise, and the faults they'd previously sutured become unclamped. In this study, scientists determine this process has influenced the timing and location of earthquakes with a magnitude of 5.0 or greater in the area during the past century. Thu, 18 Mar 2021 17:03:19 EDT //www.koonmotors.com/releases/2021/03/210318170319.htm //www.koonmotors.com/releases/2021/03/210305123805.htm Researchers have developed a new method for detecting small earthquake tremors and successfully applied it to the Nankai Trough, Japan. The technique allowed the accurate estimation of tremor location and propagation speed, leading to the first estimates of this fault's permeability -- crucial information in evaluation of earthquake rupture processes. Fri, 05 Mar 2021 12:38:05 EST //www.koonmotors.com/releases/2021/03/210305123805.htm //www.koonmotors.com/releases/2021/02/210216185904.htm 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. Tue, 16 Feb 2021 18:59:04 EST //www.koonmotors.com/releases/2021/02/210216185904.htm //www.koonmotors.com/releases/2021/01/210125112305.htm To predict when earthquakes are likely to occur, seismologists often use statistics to monitor how clusters of seismic activity evolve over time. However, this approach often fails to anticipate the time and magnitude of large-scale earthquakes, leading to dangerous oversights in current early-warning systems. For decades, studies outside the seismology field have proposed that these major, potentially devastating seismic events are connected to a range of non-seismic phenomena -- which can be observed days or even weeks before these large earthquakes occur. So far, however, this idea hasn't caught on in the wider scientific community. Mon, 25 Jan 2021 11:23:05 EST //www.koonmotors.com/releases/2021/01/210125112305.htm