Solo el 16% de la energía que fue liberada por el sismo M = 7 se convirtió en ondas sísmicas, que son responsables por el daño. Sin embargo, el sismo produjo la sacudida de roca madre más fuerte jamás registrada. Si más de su energía se hubiera transformado en ondas, su efecto habría sido mucho mayor.
The magnitude 7.1 earthquake, which struck Mexico City on 19 September 2017, caused devastation in the city and its surroundings. 369 people died, 57 buildings collapsed, and a much larger number was seriously damaged.
A new model joins two others in confirming the hazard posed by the tectonic forces that are squeezing and shearing greater LA.
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)
Ross S. Stein, Ph.D., Temblor, Inc. On February 3, a Magnitude 4.5 quake struck 30 mi (50 km) south of Eureka, followed in rapid succession by four more Magnitude 3+ …
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.
The megathrust fault lacks large subduction zone earthquakes in this region. What do these extensional earthquakes tell us?
El terremoto se encuentra rodeado por recientes grandes terremotos; es incierto si uno pudiera ocurrir aquí
The earthquake is surrounded by recent great quakes; whether one could strike here is uncertain
Raul Madariaga: “Es claro para varios de nosotros que la región de Coquimbo tiene una sismicidad inusual y en aumento que podría preparar el área para un terremoto muy grande cerca del final de este sigo.”
The Coquimbo region has an unusual, increasing seismicity that may be preparing the area for a very large earthquake – Prof. Raul Madariaga
One may think that these quakes are small, so why do they matter? Why should I care?
The partial shutdown could make things worse
Japanese authorities declared the Jan 3 shock to be an independent event; we argue that it was a product of the 2016 quake, which profoundly changed the hazard.
Il “gigante buono”. “Mamma”. “Sua Maestà”. Così i Siciliani usano chiamare l’Etna, uno dei vulcani più attivi e monitorati al mondo.
In Pennisi, the statue of Saint Emidio, protector from earthquakes, collapsed.
Tsunami, Eruption, and earthquake risk is not over
Denizaltında deprem olmadan oluşan bu tsunami, volkanın yarattığı heyelan ve kütle hareketlerinin önemli bir sonucu olarak kayıtlara geçmiştir.
Opening Presentation for the Centennial Plenary Session at the American Geophysical Union 2018 Fall Meeting in Washington, D.C.
Building Codes Work. The closer you are the stronger you are shaken. Liquefaction is a menace
Bölgenin sismo-tektonik yapısı hasar yapıcı deprem yaratma potansiyeli barındırmaktadır.
A tensional shock in a compressional setting strongly shook Anchorage, perhaps the U.S. city best rehearsed for earthquakes
After centuries of abuse, our actions have led to changes that are affecting everyone, now and into the future
Jason R. Patton, Ph.D., Ross Stein, Ph.D., Volkan Sevilgen, M.Sc. Water Management: Levees and Subsidence The state of California provides a substantial proportion of food for our country and other …
Jason R. Patton, Ph.D., Ross Stein, Ph.D., Volkan Sevilgen, M.Sc. An earthquake with a magnitude of M = 6.8 earthquake struck today along the coast of Greece, preceded by a …
Jason R. Patton, Ph.D., Ross Stein, Ph.D., Volkan Sevilgen, M.Sc. It Has Happened Before The southern San Andreas fault (SSAF) is a plate boundary strike-slip fault, where the Pacific …
by Amar Rahman (Principal Risk Engineer / Global Practice Leader Natural Hazards at Zurich Insurance Company Ltd)
Landslides during and following the M=7.5 earthquake in central Sulawesi, Indonesia possibly caused the majority of casualties from this catastrophic natural disaster.
by Abdul Muhari (Ministry of Marine Affairs and Fisheries, Indonesia), Fumihiko Imamura (International Research Institute of Disaster Sciences IRIDeS, Tohoku University, Japan), Taro Arikawa (Chuo University, Japan), and Bagus Afriyanto (Ministry of Marine Affairs and Fisheries, Indonesia)
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.
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 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.
This squeeze was likely behind the 1971 Sylmar, 1987 Whittier Narrows and 1994 Northridge thrust earthquakes
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.
Better understanding of driving mechanisms behind earthquakes will help us to better forecast seismic hazard related to induced seismicity
11 Eylül 2018 ve 12 Eylül 2018 de sırasıyla mb:4.9 ve Mw:5.2 büyüklüğünde olan depremler derin depremler olarak kayda geçmiştir
El próximo terremoto de M~7 podría ocurrir dentro de los siguientes 5 a 10 años
The next M~7 could occur within 5 to 10 years
The new bill puts a greater emphasis on seismic safety.
The magnitude 6.6 Sapporo earthquake occurred along the southern part of Hokkaido, Japan
An earthquake swarm in Indonesia, lasting more than three weeks, has left nearly 500 people dead.
There are no reported fatalities from yesterday’s earthquake.
Yesterday’s quake struck Italy’s Molise region, an area known for its castles and churches.
L’INGV ha registrato un terremoto di magnitudo 4.6 a 19 km di profondità, nella zona di Montecilfone (CB).
Sunday’s M=6.4 earthquake was the largest ever recorded in Alaska’s North Slope region.
Yesterday’s M=6.9 earthquake is an aftershock of a M=6.4 quake a week earlier.
The Carr Fire, one of 17 fires currently burning across California, is only 20% contained.
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.
The recent earthquake swarm underneath the Sea of Galilee occurred in the same location as another swarm in 2013.
Because of the remoteness of today’s event, there is no reported damage or injuries.
Minto Flats, in central Alaska has revealed a phenomenon previously only seen in the laboratory.
Extreme weather conditions and dry land from five years of drought have contributed to the fast-moving blaze.
Ruptures on either fault could strongly shake Osaka, a vibrant city of 2.7 million inhabitants.
The M=5.9 earthquake resulted in three fatalities and hundreds of injuries.
Debate remains over whether the foreshocks prior to the 1999 Izmit earthquake involved slow slip or not.
The 416 Fire in southwestern Colorado is the 416th incident the Columbine Ranger District has responded to in the San Juan National Forest this year.
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.
The country’s largest man-made recreational harbor sits on highly-liquefiable soil, which could be avoided in a large earthquake.
A newly-accepted study shows that our ability to forecast earthquakes appears to be getting better.
A new study has shown that in slowly-deforming regions, like Eastern North America, aftershocks can last for hundreds of years.
Un recente studio ha messo in luce un’anomalia gravimetrica a partire da pochi mesi prima del terremoto di magnitudo 9 di Tohoku.
Today’s eruption at Kilauea was the most explosive event since increased activity began on May 3.
Last night’s earthquake struck on the fault most likely to rupture in a large earthquake by 2043, according to the USGS.
Just this week, a California report came out showing the startling effect of climate change on wildfire, and Gov. Jerry Brown issued an executive order to combat wildfires, and allocated an additional $96 million for fire protection and risk reduction.
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.
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.
Today’s earthquake struck in a portion of the San Andreas Fault Zone known as the “San Gorgonio knot.”
Una oleada de actividad sísmica en la Gran Isla de Hawái está relacionada a la actividad volcánica asociada con el magmatismo de Kïlauea.
A flurry of earthquake activity on the Big Island of Hawai’i is related to the volcanic activity associated with Kïlauea magmatism.
May marks the unofficial start of fire season in the Western U.S.
New imaging of the Alto Tiberina Fault sheds light on the seismic hazard of the Northern Apennines.
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 …
An earthquake that caused $52 million in damage in South Korea may have been caused by human activity.
CoreLogic estimates that less than 8% of residential losses will be covered by a Hayward Fault earthquake.
The Ataturk Dam in southeastern Turkey, and the water levels in the reservoir behind it are believed to cause induced seismicity in the region.
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.
In the last 50 years, there have been many earthquakes M=6.75 and smaller around this location.
La ciudad colombiana de Manizales, en las profundidad de los Andes, experimentó una sacudida durante el sismo de hoy, con magnitud M=5.2
What would happen if a M=7.0 Hayward Fault earthquake struck the Bay Area today?
A look at the fire threat, suppression difficulty, and fire effects around the area impacted by the Tubbs Fire, California’s most destructive fire ever.
Because of this earthquake’s shallow depth, shaking was strong enough to cause damage in the city of Oda.
Today’s M=5.3 earthquake occurred in the Santa Cruz Basin just south of Santa Cruz Island.
The structures we build to protect ourselves from flooding may in fact be making it worse.
Monday’s M=5.9 quake struck in a region susceptible to much larger events.
La ciudad capital de El Salvador, San Salvador, experimentó ligeros temblores este lunes por el terremoto costa afuera de M=5.9.
Heavy rain in Kenya has revealed a large crack in Africa’s Rift Valley.
La grieta, que tiene hasta 50 pies de profundidad y 65 pies de ancho, ocasionó daños en una carretera principal y destruyó hogares.
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.
ShakeAlert could receive close to $33 million this year, well more than the initially proposed $10 million.
“We can get long warning times” according to USGS scientist Dr. Annemarie Baltay.
Residents in the mandatory evacuation zones must be out by noon today.
Half of San Francisco International Airport will be flooded by 2100.
The epicenter of Mexico’s lethal September 2017 earthquake was less than 65 miles outside the nation’s capital.
El epicentro del terremoto letal del 18 de septiembre en Mexico fue a unos 100 kilómetros de la capital.
At least one house is reported to have been damaged.
In just over a day, there have been 43 M=4.5+ aftershocks in Papua New Guinea following yesterday’s M=7.5 quake.
The Calaveras is capable of a magnitude 7+ earthquake
Some areas have already seen the worst flooding in 45 years, with only more rain to come.