Subduction megathrust earthquake preceded by a foreshock
An earthquake with a magnitude of M = 7.0 earthquake struck today in New Britain, Papua New Guinea. New Britain is an island northeast of the Island of Papua New Guinea and Australia.
Tsunami in Sulawesi, Indonesia, triggered by earthquake, landslide, or both
An M=7.5 earthquake hits Sulawesi. Three major disasters are unfolding: damage from ground shaking, damage from landslides, and damage from tsunami. We learn more every day as information is conveyed across social media. Soon geologists will have their boots on the ground to compile scientific observations so we will be able to reconstruct what happened.
The Palu-Koro fault ruptures in a M=7.5 quake in Sulawesi, Indonesia, triggering a tsunami and likely more shocks
The earthquake struck on the Palu-Koro fault, with a faster slip rate than the San Andreas, and is straddled by the city of Palu, with a population of about 340,000.
A tectonic squeeze may be loading three thrust faults beneath central Los Angeles
This squeeze was likely behind the 1971 Sylmar, 1987 Whittier Narrows and 1994 Northridge thrust earthquakes
M=6.6 Sapporo earthquake casts a deep stress shadow on the closest portion of the Ishikari Fault
Last week, the M=6.6 Hokkaido earthquake struck the southern region of Hokkaido island, near the city of Sapporo in Japan. The earthquake caused widespread electricity blackouts and multiple large landslides.
Induced Earthquakes: major reversal in our understanding
Better understanding of driving mechanisms behind earthquakes will help us to better forecast seismic hazard related to induced seismicity
Orta büyüklükte iki derin deprem Antalya’nın altındaki dalma-batma zonunun canlı olduğunu gösterdi
11 Eylül 2018 ve 12 Eylül 2018 de sırasıyla mb:4.9 ve Mw:5.2 büyüklüğünde olan depremler derin depremler olarak kayda geçmiştir
¿Es el sismo de Golfito, M=6.2 del 17 de Agosto del 2018, un premonitor de la próxima ruptura a lo largo de la Península de Osa en Costa Rica?
El próximo terremoto de M~7 podría ocurrir dentro de los siguientes 5 a 10 años
Chasing the next big earthquake in Costa Rica
The next M~7 could occur within 5 to 10 years
California bill (AB 2681) to create a public inventory of collapse-risk buildings is awaiting Gov. Brown’s signature
The new bill puts a greater emphasis on seismic safety.
Violent shaking triggers massive landslides in Sapporo Japan earthquake
The magnitude 6.6 Sapporo earthquake occurred along the southern part of Hokkaido, Japan
Earthquake swarm lights up Indonesia
An earthquake swarm in Indonesia, lasting more than three weeks, has left nearly 500 people dead.
M=7.3 earthquake rattles Venezuela and the Caribbean
There are no reported fatalities from yesterday’s earthquake.
The 14 August 2018 M=4.6 southern Italy quake: Why prevention is fundamental in areas of moderate seismic risk
Yesterday’s quake struck Italy’s Molise region, an area known for its castles and churches.
Un terremoto M=4.6 colpisce il Molise. Perché la prevenzione è importante anche in zone a moderata sismicità
L’INGV ha registrato un terremoto di magnitudo 4.6 a 19 km di profondità, nella zona di Montecilfone (CB).
Large earthquake in the Arctic National Wildlife Refuge raises questions about new oil drilling leases
Sunday’s M=6.4 earthquake was the largest ever recorded in Alaska’s North Slope region.
M=6.9 earthquake near Bali leaves at least 98 dead and 20,000 homeless
Yesterday’s M=6.9 earthquake is an aftershock of a M=6.4 quake a week earlier.
New findings clarify the seismic risk in the Pacific Northwest
New studies reveal that a Cascadia megaquake could leave hundreds of thousands of properties damaged and destroyed, and that the shaking could be most severe in Seattle.
Dead Sea Fault awakens in earthquake swarm
The recent earthquake swarm underneath the Sea of Galilee occurred in the same location as another swarm in 2013.
M=5.7 earthquake rattles central Mexico
Because of the remoteness of today’s event, there is no reported damage or injuries.
Slow earthquake precursor observed for first time on a continental fault
Minto Flats, in central Alaska has revealed a phenomenon previously only seen in the laboratory.
Could the recent Japan earthquake trigger a large Osaka quake?
Ruptures on either fault could strongly shake Osaka, a vibrant city of 2.7 million inhabitants.
Today’s deadly Japan earthquake could be related to the 1995 Kobe earthquake
The M=5.9 earthquake resulted in three fatalities and hundreds of injuries.
Was a famous earthquake precursor a phantom?
Debate remains over whether the foreshocks prior to the 1999 Izmit earthquake involved slow slip or not.
Il modello probabilistico di previsione globale dei terremoti supera i test di validazione
Il modello per il “Tasso di attività sismica globale” (GEAR) può essere usato per prevedere dove i terremoti hanno la maggiore probabilità di accadere e con quale magnitudo.
History reveals Marina del Rey’s Achilles heel: Liquefaction
The country’s largest man-made recreational harbor sits on highly-liquefiable soil, which could be avoided in a large earthquake.
Global earthquake forecast passes test
A newly-accepted study shows that our ability to forecast earthquakes appears to be getting better.
Aftershocks can last for centuries
A new study has shown that in slowly-deforming regions, like Eastern North America, aftershocks can last for hundreds of years.
Possibile precursore di mega-terremoti individuato da satelliti che misurano il campo gravitazionale terrestre
Un recente studio ha messo in luce un’anomalia gravimetrica a partire da pochi mesi prima del terremoto di magnitudo 9 di Tohoku.
M=3.5 Hayward Fault earthquake strikes East Bay
Last night’s earthquake struck on the fault most likely to rupture in a large earthquake by 2043, according to the USGS.
A giant precursor to a giant earthquake may have been detected by gravity satellites
A new study, published this month finds a large precursory gravity change over the Japanese archipelago starting a few months before the M=9.0 Tohoku earthquake.
Puede haberse detectado un precursor gigantesco para un terremoto colosal mediante satélites que analizan la gravedad
Un nuevo estudio publicado este mes halló un enorme cambio gravitatorio preliminar a lo largo del Archipiélago Japonés que inició unos pocos meses antes del terremoto de M=9.0 en Tohoku.
San Andreas Fault Zone earthquake rattles Southern California
Today’s earthquake struck in a portion of the San Andreas Fault Zone known as the “San Gorgonio knot.”
Pele, la Diosa Hawaiana del Fuego, los Relámpagos, el Viento y los Volcanes de Hawái
Una oleada de actividad sísmica en la Gran Isla de Hawái está relacionada a la actividad volcánica asociada con el magmatismo de Kïlauea.
Pele, the Hawai’i Goddess of Fire, Lightning, Wind, and Volcanoes
A flurry of earthquake activity on the Big Island of Hawai’i is related to the volcanic activity associated with Kïlauea magmatism.
Large earthquakes could be linked to a newly-imaged fault
New imaging of the Alto Tiberina Fault sheds light on the seismic hazard of the Northern Apennines.
Forti terremoti nell’Appennino potrebbero essere legati ad una faglia ora dettagliatamente osservata
By Angela Stallone (Dottoranda in Geofisica presso l’Istituto Nazionale di Geofisica e Vulcanologia (INGV)), and Giovanni Diaferia (Dottorando in Geofisica presso l’Università di Roma TRE) English Version Una faglia …
Was South Korea’s most damaging earthquake geothermally-induced?
An earthquake that caused $52 million in damage in South Korea may have been caused by human activity.
How bad will a Hayward Fault earthquake actually be, and what you can do to protect yourself
CoreLogic estimates that less than 8% of residential losses will be covered by a Hayward Fault earthquake.
The third largest dam in the world could be triggering earthquakes
The Ataturk Dam in southeastern Turkey, and the water levels in the reservoir behind it are believed to cause induced seismicity in the region.
Atatürk barajı 5.2 büyüklüğündeki depremi tetiklemiş olabilir
Türkiye’nin güneydoğusundaki Atatürk Barajı ve rezervuardaki şu seviyelerinin, 2008 yılındaki 5 büyüklüğündeki deprem de dahil olmak üzere bölgede meydana gelen depremden sorumlu olduğuna inanılmaktadır.
Widely felt M=5.2 earthquake in Colombia
In the last 50 years, there have been many earthquakes M=6.75 and smaller around this location.
El sismo de Neira, Caldas Colombia, M=5.2 ampliamente sentido por la población
La ciudad colombiana de Manizales, en las profundidad de los Andes, experimentó una sacudida durante el sismo de hoy, con magnitud M=5.2
USGS forecasts 400 fires, 20,000 people trapped in elevators, 400,000 homeless in East Bay earthquake
What would happen if a M=7.0 Hayward Fault earthquake struck the Bay Area today?
Today’s M=5.6 Japan earthquake causes surprisingly severe shaking
Because of this earthquake’s shallow depth, shaking was strong enough to cause damage in the city of Oda.
M=5.3 earthquake strikes offshore Southern California
Today’s M=5.3 earthquake occurred in the Santa Cruz Basin just south of Santa Cruz Island.
Offshore El Salvador earthquake strikes location of deadly M=7.7 event
Monday’s M=5.9 quake struck in a region susceptible to much larger events.
Terremoto costa afuera de El Salvador golpea la ubicación del mortal evento de M=7.7
La ciudad capital de El Salvador, San Salvador, experimentó ligeros temblores este lunes por el terremoto costa afuera de M=5.9.
Giant crack opens in East African Rift Valley
Heavy rain in Kenya has revealed a large crack in Africa’s Rift Valley.
Enorme grieta se abre en el Gran Valle del Rift de África Oriental
La grieta, que tiene hasta 50 pies de profundidad y 65 pies de ancho, ocasionó daños en una carretera principal y destruyó hogares.
Creating the Ties that Bind: Breaking Bread and Sharing Stories in Latin America
As part of the 2018 GSA Distinguished International Lecture Tour, Ross Stein traveled to three countries Latin America to give talks and meet with local scientists and citizens. These are his experiences.
House spending bill brings back funding for earthquake early warning
ShakeAlert could receive close to $33 million this year, well more than the initially proposed $10 million.
Earthquake Early Warning: Early and often, or possibly late?
“We can get long warning times” according to USGS scientist Dr. Annemarie Baltay.
Potent Mexico City earthquake was a rare ‘bending’ quake, study finds – and it could happen again
The epicenter of Mexico’s lethal September 2017 earthquake was less than 65 miles outside the nation’s capital.
El sismo que azotó a la Ciudad de México fue ‘peculiar’ y podría pasar de nuevo, según estudio
El epicentro del terremoto letal del 18 de septiembre en Mexico fue a unos 100 kilómetros de la capital.
Twin M=4.2 earthquakes strike Oklahoma
At least one house is reported to have been damaged.
Large earthquakes slam Papua New Guinea
In just over a day, there have been 43 M=4.5+ aftershocks in Papua New Guinea following yesterday’s M=7.5 quake.
Bay area earthquake swarm edges toward the major Calaveras Fault
The Calaveras is capable of a magnitude 7+ earthquake
Spasm of temblors tests Earthquake Early Warning for Mexico City—and beyond
Since September 2017, Mexico City’s Earthquake Early Warning system has been triggered three times.
Espasmo de temblores pone a prueba al Sistema de Alerta Sísmica de la Ciudad de México–y más
Los residentes de la ciudad de México recibieron previo aviso de 30-90 segundos en tres de los cuatro terremotos de M=7+ en los últimos seis meses, una notable tasa de éxito de 75%.
Successful Mexico City Earthquake Early Warning, but why three large quakes in 6 months?
Mexico City’s Earthquake Early Warning sirens went off up to a minute before shaking started.
New Hayward Fault study reveals increased risk in East Bay Hills
The East Bay Hills will likely experience the greatest shaking in a M=7.0 earthquake.
Earthquake Early Warning 5 seconds before ‘killer pulse’
Stand-alone Palert detectors triggered in last week’s M=6.4 earthquake in Taiwan.
Earthquake insurance coverage in Washington exceeds expectations, but is it enough?
Approximately 11.3% of people have residential earthquake insurance in Washington, only covering 18% of the exposure.
What caused the M=6.4 Taiwan earthquake?
Tuesday’s M=6.4 was preceded by a very unusual foreshock sequence.
Buildings collapse in coastal Taiwan M=6.4 quake
The mainshock followed a M=6.1 foreshock just 20 km away two days beforehand
M=6.1 earthquake strikes offshore Taiwan
Yesterday’s quake occurred at the junction of the Longitudinal Valley Fault and the Ryukyu Trench.
$3,000 retrofit grant available to California homeowners now
Registration for the $3,000 grant is only open until February 23.
Megacity megathrust: M=6 Java sequence highlights Jakarta’s seismic risk
The 30 million people that live around Jakarta are all exposed to a moderate seismic threat.
M=4 Southern California earthquake highlights Elsinore Fault’s destructive potential
Last night’s earthquake struck just off the Elsinore Fault, one of Southern California’s quietest, but most dangerous faults.
Did Tuesday’s M=7.9 Kodiak earthquake nudge the Alaskan Megathrust closer to failure?
The Alaskan Megathrust was responsible for the M=9.2 Good Friday earthquake in 1964.
Magnitude 7.9 earthquake: Midnight shaking and confusion in an Alaskan Cabin
Lester Lubetkin recounts what it was like experiencing the M=7.9 earthquake in his cabin in Homer, Alaska.
M=7.9 Alaska earthquake strikes off the coast of Kodiak Island, triggering a tsunami and questions
Last night’s M=7.9 earthquake was an unusual outer rise strike-slip event.
The M=7.1 megathrust quake that struck Peru is small by the standards of the region
Much larger quakes are common along the Nazca Trench
Series of earthquakes strikes Iran-Iraq border
Today’s quakes struck less than 150 km south of a deadly M=7.3 earthquake in November 2017.
M=7.6 Honduras earthquake—a near miss
Had this earthquake struck to the east or west, the outcome would have been much worse.
250,000 refugiados a causa de terremotos provenientes de El Salvador y Haití tendrán que abandonar los Estados Unidos
Aunque El Salvador y Haití están en el proceso de ser eliminados de la lista de países bajo el estatus de protección temporal, Nepal, que fue devastado por el terremoto de M=7.8 en 2015, permanece en la lista.
250,000 earthquake refugees from El Salvador and Haiti will have to leave the United States
El Salvador and Haiti have been removed from the list of countries with temporary protected status.
Largest Hayward Fault earthquake since 1981 raises questions about what could happen next
Last night’s earthquake was felt by approximately 10 million people.
Response by the Director of the Iranian Seismological Center
Prof. Ali Moradi shares his opinions on earthquake risk and preparedness in the region.
Dispute: Do Magnitude 7-8 mainshocks commonly trigger immediate damaging aftershocks up to 300 km (180 mi) away?
Dueling papers and posters wrestle with a tough and critical seismic question
M=3.9 earthquake near San Jose highlights Calaveras Fault’s destructive potential
Last night’s M=3.9 earthquake east of San Jose struck along the Calaveras Fault.
زنگ بیدارباش/ روایت زمینشناس ایرانی آکادمی علوم نیویورک از زلزله تهران؛ پیشلرزه یا یک زلزله اصلی؟
Translation from: khabaronline.ir Click here to read the response from the Director of the Iranian Seismological Centre جامعه > حوادث – مانوئل بربریان، زمین شناس ایرانی در آمریکا، دکترای زمینشناسی از دانشگاه کمبریج و عضو …
Guest Opinion: Tehran earthquake a wakeup call for the region
Last night’s M=4.9 earthquake outside of Tehran should be a warning to 15 million people.
M=6.5 earthquake in Indonesia causes shaking in Jakarta
Today’s earthquake struck along the relatively seismically inactive section of the Java Trench.
Increased seismic activity in Oregon highlighted by tremor and a M=4.0 quake
Last night’s M=4.0 earthquake was felt in Portland, and a slow-slip event began after a 22 month period of quiescence.
Iran struck by another series of earthquakes
Today’s M=6.0 earthquake was followed, 8 minutes later, by a M=5.0 aftershock.
Terremoto de Ecuador: un gemelo que nació cinco meses después
El terremoto de ayer de M=6.0 a lo largo del litoral de Ecuador, ocurrió justo al noreste del popular destino turístico de Bahía
Ecuador earthquake: a twin delivered five months later
Yesterday’s M=6.0 earthquake struck on or just above the subducting slab.
Alerta sísmica temprana: Cambios en la Gravedad se adelantan a las señales sísmicas
La alerta sísmica temprana pretende alertar a la población y a los sistemas automatizados segundos antes de una fuerte sacudida, es una de las contribuciones más importantes de la sismología moderna a la sociedad.
Another damaging earthquake strikes Iran
Last night’s M=6.0 earthquake is the second large, damaging earthquake in the last month.
M=4.1 Delaware earthquake the largest recorded in the state’s history
The largest earthquake recorded in Delaware before today was a M=3.8 in 1973
Earthquake Early Warning: Gravity changes beat seismic signals
Earthquake early warning (EEW), which aims at alerting people and automated systems seconds before strong shaking arrives, is one of the important contributions of modern seismology to society
¿Podrían los cambios en la rotación terrestre ser usados para pronosticar terremotos?
Esta hipótesis ha generado gran controversia entre los medios de prensa, ¿Cual será la reacción dentro de la comunidad científica?
Can changes in Earth’s rotation be used to forecast earthquakes?
This hypothesis has caught fire with the press. How will it fare among scientists?
Where the San Andreas goes to get away from it all
A creeping section on the fault and a magnitude 4.6 earthquake in the middle of it
Do the recent South Korean magnitude-5.4 earthquakes imperil the safety of its nuclear power plants?
The two largest shocks in 40 years both struck along an active 120-km-long fault that lies 10 km from three nuclear reactors
A personal cry by an Iranian-born earthquake scientist for a change in how Iran addresses its seismic risk and resilience
Neither earthquakes nor buildings kill the people in this beautiful and ancient country.
A former resident reports on M=7.3 Iraq-Iran shock: Devastation of the large city of Derbandikhan
The quake had special significance for me personally, as my hometown—Khanaqin—lies on the Iraqi side of the border, just 50 km southwest of the epicenter.
El Terremoto de Esterillos, Costa Rica Mw=6.50, Un sismo con consecuencias destructivas
Los sismos en el pacifico central de Costa Rica tienden a ocurrir en pares, por lo que no es posible descartar
la ocurrencia de un sismo similar.