M 6.0 offshore Tanzania
Earthquakes are not uncommon in the East African Rift Zone, often originating, as in the case of today’s M6.0 offshore Tanzania, on a secondary branch of the rift. Shaking …
Earthquakes are not uncommon in the East African Rift Zone, often originating, as in the case of today’s M6.0 offshore Tanzania, on a secondary branch of the rift. Shaking …
Some 26 hours after the M 4.6, the Bombay Beach seismic swarm continues. But more surprising is that much of the Brawley Seismic Zone, and parts of all the …
A series of earthquakes have struck in the Salton Sea in Southern California. Events like this have occurred four times in the last 20 years. They are all swarm-like …
Yesterday’s magnitude-5.1 quake in western North Carolina was felt throughout the southeastern U.S. Although it came as a shock, a quake of this magnitude is not unexpected. By John …
A M 5.1 earthquake rattled parts of the eastern US today. The quake struck outside of Sparta, North Carolina. Moderate magnitude quakes are not rare in this part of …
Scientists are getting new clues about seismic activity before large earthquakes along subduction zones by measuring tectonic wobbles in Japan and Chile. By Chelsea Scott, Ph.D., Assistant Research Scientist, …
Aftershocks continue off the southern shore of Puerto Rico following a M6.4 quake in January of this year. Today, a M5.1 quake struck offshore, in an area that has …
A M5.4 quake struck off shore Japan yesterday. This quake is part of a continuing swarm of M5.0+ shocks along Honshu that began earlier this year, extending from Tokyo …
Computer simulations help researchers understand the range of possible outcomes of a rupture when key details of the San Andreas Fault are still unknown. By: Shi En Kim (@goes_by_kim) …
A magnitude-7.8 quake struck near the mostly uninhabited Shumagin Islands on July 22, 2020, potentially closing a large seismic gap along the Aleutian trench. By Elisabeth Nadin, Associate Professor, …
Today’s M 4.2 quake likely struck on a ‘tear fault’ that connects portions of the 1971 San Fernando earthquake rupture. Today’s event is strike-slip, whereas the 1971 event was …
New research suggests that water-rich rocks present along subduction zone boundaries may cause these areas to ‘creep’ along without generating earthquakes. By Melanie Chan, @mellojellochan Citation: Chan, M. …
A M 7.8 quake shook the Aleutian Islands this morning. The Alaska earthquake likely occurred along the subduction interface. The Aleutian arc is no stranger to large quakes, having …
A shallow M 4.2 quake shook Cebu City, Central Visayas on July 17th. The region is at elevated risk of strong shaking, according to Temblor’s models. The M 7.1 …
A recent study finds that ancient rock structures in Australia that formed over 500 million years ago determined the pathway of a 2016 earthquake. By Helen Santoro, freelance science …
The 2019 Ridgecrest quakes stressed the Garlock Fault. If it ruptured in a large shock, it would likely trigger a San Andreas earthquake north of Los Angeles. By Ross …
A shallow magnitude-5.1 earthquake struck the Boconó Fault in Venezuela today, and was felt as far away as Caracas. This right-lateral transform fault ruptured in large, damaging earthquakes 6 …
A swarm of earthquakes has shaken central Idaho over the past month, with two M4.0 quakes striking in the past 24 hours. This region has seen large quakes in …
A M 5.1 quake struck NE Colombia tonight. This quake is likely another event in the “Bucaramanga nest,” one of the highest concentrations of intermediate depth seismicity in the …
Smartphone usage may provide a global earthquake early warning system through crowdsourced motion detection with the MyShake app. By Melissa L Weber, M.A., freelance science writer (@Melwriter) Citation: …
A deep M 6.6 quake struck north of Java today. Shaking was felt throughout the island. The quake was deep enough to lie on the megathrust. Although likely unrelated, …
Researchers link subducting plate angle to earthquake events that produce larger than normal tsunamis — helpful information for future tsunami risk awareness. By: Danielle Woodring, M.S., structural geologist/science writer …
A recent paleoseismic study used a new method to identify the timing of past earthquakes that occurred in the Monterey Bay area prior to the 1906 San Francisco earthquake. …
New high-res 3D images of a fault zone show how fluid movement causes an earthquake swarm. By Julie Pierce Onos (@JuliePierceOnos) Citation: Pierce Onos, J. 2020, Imaging from …
Six magnitude-5.0+ shocks have struck greater Tokyo since April 1st, part of a larger swarm that extends north to Hokkaido, at a rate that is about three times higher than …
Durante esta semana, un terremoto de magnitud 7.4 golpeó la costa del estado de Oaxaca, México. Al igual que eventos previos, este terremoto demuestra la existencia de un complejo sistema …
A magnitude-7.4 quake struck just offshore of Oaxaca, México this week. This and previous quakes highlight complex faulting and remind us of earthquake risk in the area. By Aaron …
A M 5.8 quake struck today near the southern end of the Owens Valley Fault Zone. Retrospectively, it appears yesterday’s nearby M 4.6 quake was a foreshock. The damaging …
Today’s M 7.4 megathrust Oaxaca Earthquake was likely promoted by the deeper 2017 M 8.2 Tehauntepec quake. Here is the forecast Temblor submitted to the Willis Research Network in …
The Yogyakarta region of Indonesia was shaken by a M 5.0 quake at 2:33 am local time. The deep quake struck ~75 km offshore. Parts of Java is at …
A M 4.2 quake hit near Perry, Oklahoma last night. This is not unexpected in this region. Oklahoma has experienced several M 4+ earthquakes per year, including a M …
By Ross S. Stein and Volkan Sevilgen Temblor was founded on the principle that everyone, everywhere, should be able to learn their seismic risk. For the safety and financial …
By: Haluk Eyidoğan, Ph.D., Professor of Seismology, Istanbul Technical University A moderate earthquake struck the Bingöl province in eastern Turkey on Sunday. The quake occurred at the intersection between …
A M 5.9 quake struck eastern Turkey today. The quake occurred near the intersection of the Eastern and Northern Anatolian Faults. A M 6.8 quake occurred nearby in 1949, …
A M 5.2 quake struck in western India today. The quake appears to be a late aftershock of the M 7.7 Gujarat (Bhuj) earthquake in 2001. This aftershock is …
By: Ian Stone, Ph.D. candidate, University of Washington (@NoisyRocks) Cascadia has experienced major earthquakes in the past. Should another occur today, the region’s cities would feel intense shaking — …
By: Miguel Neves, Ph.D. Candidate, Georgia Institute of Technology (@Waves2Miguel) A new study examines the challenges of earthquake early warning systems, such as latency, and how to improve the …
A M 5.2 aftershock struck the Elâzığ region in Eastern Turkey today. The region experienced a damaging M 6.8 quake in January. Today’s quake is just one of several …
Today, the largest aftershock of the 2019 M7.1 Ridgecrest sequence since July 6 struck at the south end of the rupture zone. It’s likely a right-lateral strike-slip earthquake, perhaps …
An apparent seismic swarm is in progress near Delhi. The quakes are not occurring on any known fault, and depths are uncertain. Swarms like this are not typically followed …
An ~90km deep M6.8 quake struck in Chile today. It seems to have originated on the slab interface, according to the USGS Slab2 model. But, the focal mechanism is …
A shallow M 4.7 quake struck today on the Septentrional Fault off Cap-Hatien in northern Haiti. Though small, two great quakes likely ruptured the fault in 1842 and 1887. …
A M 4.6 quake struck northwest of India’s capital, New Delhi today. The region experienced a widely felt M 3.8 in April. Today’s shock occurred beneath the Delhi-Hardwar ridge, …
By: Shi En Kim (@goes_by_kim) Researchers repurpose underground fiber-optic cables for measuring soil properties in urban areas, which helps scientists determine how the soils — and thus the buildings …
Two large earthquakes struck offshore New Zealand over the weekend. The region hosts a number of large faults capable of generating major quakes. The South Island is transected by the …
The M 6.5 Tonopah event appears to include a main left-lateral rupture on an E-W fault, and a secondary right-lateral rupture on a N-S Fault. This type of sequence, termed …
A M5.0 quake struck just off the eastern coast of Luzon in the Philippines at a depth of approx 48 km according to the USGS. The region lies wedged between …
A widely-felt magnitude-4.8 earthquake ruptured at the southern edge of Santiago today. The event likely struck on the megathrust that lies 90 km beneath Santiago. …
It is beginning to appear that a 20-25 km long left-lateral strike-slip fault, perhaps fully unmapped before the earthquake, is responsible for the 15 May rupture. There is just one …
By: Ross S. Stein, Ph.D. (Temblor, Inc., CEO) Shinji Toda, Ph.D. (International Research Institute for Disaster Science, Tohoku University) Volkan Sevilgen, M.Sc. (Temblor, Inc., CTO) The magnitude-6.5 quake provides …
A magnitude-6.5 quake struck a remote part of Nevada today, but was felt in the San Francisco Bay area, Bakersfield, and Las Vegas. Based on its aftershocks and focal mechanism, the event probably struck on an unnamed left-lateral fault, or perhaps the Emigrant Peak Fault.
By: Christian Fogerty, Science Writer (@ChristianFoger1) Seismologists used a recently developed model to forecast aftershocks following the recent Ridgecrest earthquake sequence. Their findings revealed a short-term increase in seismic …
Yesterday’s M5.8 is the latest in a series of M5+ quakes to rattle greater #Tokyo since the beginning of the year. The long-term rate of M5+ quakes within 100 km …
Three widely felt earthquakes shook the Philippines today, but it’s unclear if they triggered each other. They appear to have struck on the twin subduction zones that formed the islands. …
Another quake struck beneath the Tokyo metro region just after 10 pm local time on May 4th. This quake, a M 5.6, is the latest in a swarm that has …
A M 3.3 quake rattled parts of the northern Los Angeles metro area last night. The region is at risk of strong shaking, according to Temblor’s models. Los Angeles has …
A series of M 4+ aftershocks struck this morning off shore of Puerto Rico, south of Ponce, with the largest being a M 5.3. These quakes follow the M 6.4 …
A M 5.0 earthquake occurred today near the town of Padangsidempuan, Indonesia. Sumatra is transected by the right-lateral Sumatran fault system. Today’s quake occurred within a tectonically complex region …
By: Ramesh P. Singh, Ph.D., School of Life and Environmental Sciences, Chapman University Efficient energy transfer from the epicenter of Sunday’s magnitude-3.8 quake northeast of New Delhi, along with …
By: Jacob B. Lowenstern, Ph.D. and John W. Ewert, U.S. Geological Survey Cascades Volcano Observatory Volcano observatories are a critical tool for governments to reduce the impacts of volcanic …
By: Deborah Kilb, Ph.D., Project Scientist, Scripps Institution of Oceanography (@Kinect_with_Sci), and Frank Vernon, Ph.D., Researcher, Scripps Institution of Oceanography Over the last 20 years, the Anza area has …
英文链接 英文作者:John C. Mutter博士 哥伦比亚大学地球与环境科学教授以及国际与公共事务教授 英文发表时间:2020年4月1日 翻译:google translate (谷歌翻译) 后期修改: 彭志刚(Zhigang Peng)博士 佐治亚理工地球与大气系教授 考虑到地球自然灾害的发生频率,以及冠状病毒大流行的持续时间,我们几乎无法避免它们同时发生。试想,当某地的疫情已经失控时,突然又发生一次大地震或者大风暴,这时我们该怎么办呢? 英文引用 :Mutter, J.C., (2020), What if? What if a natural disaster strikes amid a …
By Laura Fattaruso, M.S., Ph.D. Candidate, UMass Amherst (@labtalk_laura) A recent study finds that ground motions from earthquakes induced by oil and gas operations are similar to those produced …
By John C. Mutter, Ph.D., Professor of Earth & Environmental Sciences and Professor of International & Public Affairs, Columbia University Given the timescales of the Earth’s natural spasms, and …
by John C. Mutter, Ph.D., Professor of Earth & Environmental Sciences and Professor of International & Public Affairs, Columbia University After a catastrophe, whether earthquake or pandemic or anything …
By Noel Bartlow, Ph.D., Assistant Researcher, Berkeley Seismology Laboratory The Cascadia Subduction Zone has occasional large earthquakes and frequent slow-slip events. A new study quantifies how these slow-slip events …
By Elisabeth Nadin, Ph.D., Associate Professor, University of Alaska Fairbanks, U.S. Haluk Eyidoğan, Ph.D., Professor of Seismology, Istanbul Technical University, Turkey Ali Moradi, Ph.D., Director of Iranian Seismological Center and …
By Laura Fattaruso, M.S., Ph.D. Candidate, UMass Amherst (@labtalk_laura) A new study uses organic biomarkers to detect heat produced during large earthquakes. Scientists found several faults off the coast …
By Douglas Toomey, Ph.D., Professor, University of Oregon Despite full knowledge of the risks the Cascadia Subduction Zone poses, Oregon’s legislature has been unable to fund hazard mitigation activities. …
By Elisabeth Nadin, Ph.D., Associate Professor, University of Alaska Fairbanks New research reveals that Earthquake Early Warning networks provide a timely warning of impending shaking more often than not. …
By Alberto M López, Ph.D., K. Stephen Hughes, Ph.D. and Thomas R. Hudgins, Department of Geology, University of Puerto Rico – Mayaguez Campus Elizabeth Vanacore, Ph.D. and Gisela Báez-Sánchez, B.S., …
By Ross S. Stein, Ph.D., Temblor CEO Citation: Ross S. Stein (2019), Triumphs, Conundrums, and Debates in Earthquake Forecasting and Seismic Hazards, Temblor, http://doi.org/10.32858/temblor.062 At the American Geophysical …
Por Albert Leonardo Aguilar Suarez, Ph.D. candidate, Stanford University, y Ross S. Stein, Ph.D., Temblor, Inc. Evacuaciones en Bogotá y la suspensión de sistemas de transporte siguieron al sismo …
Evacuations in Bogotá and the suspension of transportation systems followed a magnitude-6.2 earthquake, which struck on or near where the North Andean Block grinds against South American Plate. The mainshock was followed just 15 minutes later by a magnitude-5.7 aftershock. Further large aftershocks remain a possibility
Aiming to make energy production safer, scientists developed a new model for forecasting earthquakes caused by oil and gas operations in the central U.S.
As of today, some 24 people are dead and 650 injured, and many more are unaccounted for in collapsed concrete buildings on the coastal plains surrounding the epicenter. The quake likely struck on a ‘blind thrust fault’ that does not reach the Earth’s surface but had nevertheless been previously identified by geologists.
Warnings were issued for the magnitude-4.5 and magnitude-4.7 quakes 5-6 seconds after they ruptured via ShakeAlert, and alerts reached beta testers of the MyShake app about 2 seconds later. While important progress, these intrinsic delays mean that those who experienced strong shaking received no warning. Alert delays may be longer as the number of alert recipients grows.
The recent acquittal of the TEPCO executives in the Fukushima power plant tragedy hearkens back to the trial of the Italian seismologists who were charged with negligence after the L’Aquila, Italy, earthquakes. Both events raise the question: How much do you prepare for the most dreadful disasters, which result from truly large or rare paroxysms of the Earth?
A 2018 study published in Nature by Phoebe DeVries and her colleagues at Harvard and Google claimed that Deep Learning was able to predict the locations of aftershocks with accuracies far greater than Coulomb stress transfer could achieve
Last night, nearly everyone in the greater Bay area was awakened at 10:30 pm by a Magnitude 4.5 shock near the town of Pleasant Hill, north of Walnut Creek
A new comprehensive study of almost 100,000 earthquakes in Japan suggest that large or small, quakes look alike in the first 0.2 seconds
One hospital, four schools, and nine administrative buildings are severely damaged. Some 29 schools of various degrees of damage were forced to close, at least temporarily.
Based on the M 5.7 aftershocks thus far, there is a 3% chance that it could trigger a magnitude-6.5 or larger shock in the next year. The M 5.7 also brought a portion of the Marmara Fault significantly closer to failure.
The Magnitude 7.1 earthquake abruptly halted aftershocks on the M 6.4 cross fault. It also produced a far-flung aftershock sequence that touched the San Andreas, but refused to cross the Garlock Fault.
The 50-km-long rupture has triggered widely dispersed aftershocks. However, almost none of these struck on the faults that the M 7.1 brought closer to failure: The major Garlock Fault; or the Blackwater, Panamint Valley, or Sierra Nevada Faults.
The 50-km-long rupture has triggered widely dispersed aftershocks. However, almost none of these struck on the faults that the M 7.1 brought closer to failure: The major Garlock Fault; or the Blackwater, Panamint Valley, or Sierra Nevada Faults.
The site of the 4th of July shock was stressed by the great 1872 Owens Valley quake and the 1992 Landers quake. Their overlapping stress lobes may have raised the stakes for this region.
The site of the 4th of July shock was stressed by the great 1872 Owens Valley quake and the 1992 Landers quake. Their overlapping stress lobes may have raised the stakes for this region.
The site of the 4th of July shock was stressed by the great 1872 Owens Valley quake and the 1992 Landers quake. Their overlapping stress lobes may have raised the stakes for this region.
While Japan is moving entire towns out of the tsunami zone in the wake of the 2011 Tohoku disaster, Oregon is doing the opposite, trading public safety for developer profits.
While no one quake can invalidate an earthquake hazard model, larger-than-expected quakes on both the Tohoku and Japan Sea coasts point to inadequacies in Japan’s national seismic model.
The mysterious ‘Fontana Trend’ lit up in shallow and widely felt shocks during the past week, putting residents on edge. The swarm lies near the junction of the major Sierra Madre and San Jacinto Faults.
Un fuerte terremoto de Mw 8.0 sacudió a Perú a las 2:41 am hora local este domingo 26 de mayo de 2019, desde un epicentro dentro de la Reserva Nacional de Pacaya-Samiria en la selva tropical del Amazonas.
A magnitude-8.0 quake shook deep below the Amazon Rainforest in Peru, causing extensive liquefaction and shaking from Colombia to Chile.
A magnitude-7.5 quake broke the same fault that produced a magnitude-8.0 quake in 2000, an extraordinarily short recurrence time that also broke all our rules
An open invitation for researchers to use these remarkable Costa Rica quakes as a collaboration laboratory
While exact repeats of earthquakes are rare, if the 1906 quake did strike again, what will be our excuse for being so unprepared?
India is one of the countries with the most earthquake-related deaths. Just in the past century, over 100.000 people have died due to earthquakes in the country (Bilham, 2009)
La megafalla de cabalgamiento carece de grandes terremotos en la zona de subducción en esta región. ¿Qué nos dicen estos terremotos extensionales?
The swarm appears to be occurring on a right-lateral reverse fault that connects the San Andreas and Mendocino Fracture Zone with the shallow portion of the Cascadia Megathrust.
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